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P MIKITHA
POSTGRADUATE
AECS MAARUTI COLLEGE OF DENTAL SCIENCES
AGGRESSIVE
PERIODONTITIS
CONTENTS
 Introduction
 History
 Classification
 Localized aggressive periodontitis
Prevalence
Clinical findings
Radiographic features
 Generalized aggressive periodontitis
Prevalence
Clinical findings
Radiographic findings
 Etiology and pathogenesis
 Diagnosis
 Treatment consideration
 Conclusion
 References
 Destructive periodontal diseases affecting the connective tissue attachment
& alveolar bone supporting the teeth have long been considered the
principal cause for tooth loss.
 At the 1999 International classification workshop, the different forms
of periodontitis were reclassified into three major forms (chronic,
aggressive, necrotizing forms of periodontitis and periodontal
manifestations of systemic diseases).
INTRODUCTION
HISTORY
Diffuse atrophy of
alveolar bone.
Gottlieb,1923
Early-onset
Periodontits.
Page & Boab 1989.
Juvenile
Periodontitis.
Deep cementopathia,
Gottlieb,1928
Chaput et
al,1967.
Butler 1969
1. Pre-pubertal Periodontitis.
2. Juvenile Periodontits.
3. RP Periodontiits
1999 AAP International
Workshop for
Classification
Aggressive
Periodontitis.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
In 1971, Paul Baer
Aggressive periodontitis
Disease of the periodontium occurring in an otherwise
healthy adolescent
Characterized by a rapid loss of alveolar bone about > 1
tooth of the permanent dentition.
The only teeth
affected are.
1. 1st Molars.
2. Incisors.
Amount of
destruction
manifestated is not
commensurate
with the amount of
local irritants.
Generalised form, it
may affect most of
the dentition.
Baer PN. The case for periodontosis as a clinical entity. J Periodontol 1971: 42: 516-520.
Baer proposed 7 criteria to define the disease
Early onset of the disease during the circumpubertal period. (11 & 13years)
Vertical alv bone loss at the 1st permanent molars & one or more incisor
teeth.
A rapid rate of disease progression
The disease affects only the permanent dentition.
The amount of local etiologic factors is not commensurate with the
severity of the pdl destruction.
Predominant in females (3:1)
It has a familial pattern.
Baer PN. The case for periodontosis as a clinical entity. J Periodontol 1971: 42: 516-520.
1999, International workshop for the classification of Pdl disease and
conditions defined the entity of AP as being characterised by “3 primary
features”-
Rapid loss of attachment and tooth-
supporting bone.
Subject is otherwise healthy.
Familial aggregation.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
 Amount of microbial deposits inconsistent with the severity of
periodontal tissue destruction.
 Elevated proportions of Actinobacillus actinomycetemcomitans and
Porphyromonas gingivalis.
 Phagocytic abnormalities.
 Hyper-responsive macrophage phenotype, including production of
PGE2 and IL-1 in response to bacterial endotoxins.
 Progression of attachment loss and bone loss may be self-arresting.
Secondary features that are considered to be
generally but not universally present are:
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
American Academy of Periodontology workshop, 1999
Aggressive Periodontitis
Localized
Aggressive
Periodontitis
Generalized
Aggressive
Periodontitis
 Aggressive periodontitis is a specific type of periodontitis featuring
rapid attachment loss, bone destruction and familial aggregation
exhibiting inconsistent amounts of microbial deposits with severe
periodontal tissue destruction, phagocyte abnormalities and elevated
proportions of Aggregatibacter actinomycetemcomitans and, in some,
Porphyromonas gingivalis in otherwise healthy patients.
(Glossary of periodontal terms 2001, 4th ed)
DEFINITION
American Academy of Periodontology. Glossary of periodontal terms.4;2001.
 Localised Aggressive Periodontitis is characterised by
circumpubertal onset, localised first molar/incisor
presentation with interproximal attachment loss associated
with at least two permanent teeth and involving no more than
two teeth other than first molars and incisors having robust
serum antibody response to infecting agents.
(Glossary of periodontal terms 2001,4th ed)
American Academy of Periodontology. Glossary of periodontal terms.4;2001.
LOCALISED AGGRESSIVE PERIODONTITIS
PREVALENCE AND DISTRIBUTION
 It is estimated to be below 1%.
 Blacks– mostly male blacks- 2.9 times more likely to have disease than black
females.
 (Baer 1971, Manson and Lehner 1974) concluded female to male ratio as 3:1
 Primary dentition: In 5 to 11 year olds it ranges from 0.9 - 4.5% of subjects
(Sweeney et al 1987)
 Permanent dentition: In the permanent dentition of 13-20 year old individuals
majority of studies have reported a prevalence of periodontitis of less than 1%
(usually 0.1-0.2% in caucasian population).
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
CLINICAL FINDINGS
 Localized first molar/incisor with interproximal attachment loss.
 The most striking feature
 Lack of clinical inflammation, despite the presence of deep
periodontal pockets
Disto-labial migration of
central incisor in LAP
Periodontal Abscess
Deep, dull radiating pain
may occur with mastication.
Regional lymph node
enlargement
 Clinically there is small amount of plaque ,which
forms a thin film on the tooth that rarely mineralizes
to become calculus.
 Most commonly there is migration and mobility of
first molars and incisors. Classically the maxillary
incisors move in distolabial direction.
 Concomitant to anterior tooth migration there is an
apparent increase in size of the clinical crown.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
RADIOGRAPHIC FINDINGS
 Vertical loss of alveolar bone around first
molars and incisors.
 Rate of bone loss is 3-4times faster than in
chronic periodontitis.
 Arc-shaped bone loss from distal of 2nd
Premolar to Mesial of 2nd Molar and often
presents a mirror-image pattern on the
radiograph.
 Bone defects usually bilateral, affecting 1st
Molars & Incisors.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
 Although the most important measurement is that of attachment loss
by probing in younger subjects a currently utilized approach is
measurement of distance between CEJ and alveolar crest on bitewing
radiographs.
DISTRIBUTION OF LESION
The classical distribution of lesions in first molar / incisor region may be
explained by following :
 After initial colonization of the first permanent teeth to erupt (first
molars and incisors) A.a evades the host defenses by different
mechanisms. After initial attack, adequate immune responses are
stimulated to produce opsonizing antibodies to enhance phagocytosis of
invading bacteria and neutralize destructive factors. In this manner
colonization of other sites may be prevented. (Zambon1983).
Armitage G C, Cullinan M. Comparison of the clinical features of chronic and aggressive periodontitis. Periodontol 2000; 2010,53:12–27.
 Bacteria antagonistic to A.a may develop, thereby decreasing the
destructiveness of the lesions and reducing the number of colonization
sites (Hillman 1982).
 A.a may lose its leukotoxin producing ability for unknown reasons.
When this happens the progress of the disease becomes arrested or
retarded and new colonization sites averted.
Armitage G C, Cullinan M. Comparison of the clinical features of chronic and aggressive periodontitis. Periodontol 2000; 2010,53:12–27.
 The possibility that a defect in cementum formation may be responsible
for localization of the lesion has been suggested (Page 1985). Root
surfaces of teeth extracted from patients with LAP have been found to
have hypoplastic or aplastic cementum (Lindskong 1983)
CLINICAL COURSE
 LAgP progresses rapidly.
 There is evidence that rate of progression is about three to four times
faster than found in typical periodontitis (Baer 1971,1974).
 In affected persons bone resorption progresses until the teeth are treated,
exfoliated or extracted.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
BURN-OUT PHENOMENON
• Initially it was thought that LAP gradually becomes GAP over time. But
some cases of LAP don’t show any increased bone destruction, are
known to arrest spontaneously, leading to caessation of disease activity.
• Proposed by Ranney.
Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical periodontology,Elsevier,12,2010;506-512.
SEQUELAE OF LOCALIZED
AGGRESSIVE PERIODONTITIS
 Hormand and Frandsen (1979) in a study of 156 patients, presented
evidence for progression of the disease from a localized to generalized
form.
 Case report by Shapira, Van Dyke et al (1994) of periodontitis patients
who were followed up for many years and findings are:
 Idiopathic Prepubertal periodontitis at age 10.
 LJP at age 22, bone loss involving all the permanent first molars and
maxillary and mandibular incisors.
 Rapidly progressive periodontitis at age 29.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
GENERALISEDAGGRESSIVE PERIODONTITIS
Encompasses the diseases that were previously
classified as generalised juvenile periodontitis and
rapidly progressive periodontitis.
GENERALISED PERIODONTITIS
 Generalised Aggressive Periodontitis usually affects person
under 30 years of age or may be older with generalised
interproximal attachment loss affecting at least three teeth other
than first molars and incisors and there is a pronounced episodic
nature of the destruction of attachment and alveolar bone having
poor serum antibody response to infecting agents.
(Glossary of periodontal terms 2001,4th ed)
American Academy of Periodontology. Glossary of periodontal terms.4;2001.
PREVALENCE AND DISTRIBUTION
 Loe and colleagues (1986), in a study of Sri Lankan subjects aged 14 –
46 yrs showed that 8 % of the population had rapid progression of
periodontal disease characterized by yearly loss of attachment of 0.1 to
1mm.
 National survey of adolescents in U.S, aged 14-17 yrs old. ( Loe &
Brown, 1991) prevalence rate – 0.13 %
 Blacks were found to be at much higher risk than whites for all forms of
AgP .
 Males were more likely to have GAP than females.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
CLINICAL FINDINGS
 As seen in LAP, patients with GAP often show small amount of bacterial plaque
associated with affected areas.
 Quantitatively the amount of plaque is inconsistent with the amount of destruction
seen. Qualitatively P.gingivalis, A.a and T.forsythus are frequently detected.
 Generalized interproximal attachment loss affecting atleast three permanent teeth
other than first molars and incisors.
 Pronounced episodic destruction of attachment and alveolar bone.
 Poor serum antibody response to infecting agents.
 < 30years of age, but patients may be older.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
 Two gingival tissue responses can be found in cases of
GAgP .
Severe, acutely inflamed tissue
that is often proliferating,
ulcerated, and fiery red-
DESTRUCTIVE STAGE.
#Bleeding
#Suppuration
#Active loss of attachment & bone
Tissues appears pink, free of
inflammation and occasionally with
some degree of stippling– NON-
DESTRUCTIVE STAGE.
#Deep pockets
#Bone & attachment levels relatively
stable (Period of Quiscence)
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
 The destruction appears to occur episodically
followed by stages of quiescence of variable
time.
 Sometimes patients may also present with
systemic manifestations like weight loss,
mental depression, general malaise.
 Lesions may be arrested or spontaneous after
therapy, whereas others may continue to
progress inexorably to TOOTH LOSS
despite intervention with conventional
therapy.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
RADIOGRAPHIC FINDINGS
No definite pattern of distributiom.
The radiographic picture in GAgP can range from severe bone loss associated
with number of teeth to advanced bone loss affecting majority of the teeth in
the dentition.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
BONE LOSS IN GAgP
 Page and co-workers demonstrated osseous destruction ranging
from 25-60% during a 9-week period.
 Despite this extreme loss other sites in the same patient showed no
bone loss.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
INCIDENTAL ATTACHMENT LOSS
Often subjects present with attachment loss that does not fit the specific
diagnostic criteria. (AP or CP)
It includes:
• Recessions associated with trauma or tooth position.
• Attachment loss associated with impacted 3rd molars, removal of
impacted 3rd molars, etc.
• These patients are a high-risk group for AP or CP.
Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical periodontology,Elsevier,12,2010;506-512.
ETIOLOGY AND PATHOGENESIS
Microbiologic factors
Genetic factors Immunologic factors
Current concepts
Environmental factors
AgP
MICROBIOLOGIC FACTORS
 Acceptance of bacterial etiology of aggressive forms of
periodontitis has been particularly difficult since clinical
presentation of cases frequently shows little visible plaque
accumulation.
 Of great importance is microscopic studies demonstrating
the layer of bacterial deposits on the root surface of
advanced AgP lesions (Listgarten 1976).
KononenE , Muller H. Microbiology of aggressive periodontitis. Periodontol 2000;2014,65: 46–78.
DOMINANT ORGANISMS
1. A.a (Approx. 90%)
2. Capnocytophaga sp
3. E.Corrodens
4. P.intermedia
5. Motile anaerobic
rods, such as
C.rectus
6. Gram-positive
isolates were mostly.
• Streptococci
• Actinomycetes
• Peptostreptococci
1. P.gingivalis
2. A.a
3. Bacteroides forsythus
LAP
GAP
KononenE , Muller H. Microbiology of aggressive periodontitis. Periodontol 2000;2014,65: 46–78.
A.a has been implicated as the primary pathogen associated with LAP. As summarized
by Tonetti and Mombelli, it is based on the following evidence.
1. It is found in high frequency (approx.90%) in lesions characteristic of LAP.
2. Sites with evidence of disease progression often show elevated levels of A.a.
3. Many pts with the clinical manifestations of LAP have significantly elevated serum
antibody titers to A.a.
4. Clinical studies show a correlation between reduction in the subgingival load of A.a
during treatment and a successful clinical response.
5. It produces a no. of virulence factors that may contribute to the disease process.
KononenE , Muller H. Microbiology of aggressive periodontitis. Periodontol 2000;2014,65: 46–78.
DETERMINANTS OF VIRULENCE AND
PATHOGENIC POTENTIAL OF A.
ACTINOMYCETEMCOMITANS
FACTOR SIGNIFICANCE
Leukotoxin Destroys human PMNs and
macrophages
Endotoxin Activates host cells to secrete
inflammatory mediators (PGs,IL-1β,
TNF-α)
Bacteriocin Inhibit growth of beneficial species
Immunosuppressive factors Inhibit IgG and Ig M production
Collagenase Cause degradation of collagen
Chemotactic inhibition factors Inhibit neutrophil chemotaxis
KononenE , Muller H. Microbiology of aggressive periodontitis. Periodontol 2000;2014,65: 46–78.
GENETIC FACTORS
 Segregation and Linkage analysis studies have shown an autosomal dominant
pattern of inheritance.
(Saxen & Nevanlinna 1984, Beaty et al 1987, Hart et al 1992)
 Marazita et al 1994 carried out the largest and most comprehensive
segregation analysis and concluded autosomal dominant model of inheritance.
 Antibody response to periodontal pathogens particularly A.a is under genetic
control, and that the ability to mount high titers of specific, protective antibody
(primarily IgG2) against A.a may be race dependent.
Vieira A , Albandar J. Role of genetic factors in the pathogenesis of aggressive periodontitis. Periodontol 2000; 2014,65:92–106.
 Boughman et al 1986 carried out a linkage study and concluded
linkage of Juvenile Periodontitis to a Vitamin D binding locus on
chromosome 4.
 Hart et al in 1993 suggested that a locus responsible for AgP was
located on chromosome 1q25.
 Lastly it supports a semigeneral transmission model which says that a
few loci with small effects contribute to AgP, with possibly the
influence of environmental factors.
Vieira A , Albandar J. Role of genetic factors in the pathogenesis of aggressive periodontitis. Periodontol 2000; 2014,65:92–106.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
ENVIRONMENTAL FACTORS
 The amount and duration of smoking is important variable to influence
the extent of destruction seen in young adults.
 Patients with GAgP with smoking habit have more affected teeth and
more attachment loss than nonsmoking patients with GAgP.
 Smoking may not have the same influence on LAgP.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
Schenkein et al. 1995: Cigarette smoking was
shown to be a risk factor for patients with generalized
forms of AgP.
Smokers with GAP had more affected teeth and
greater mean levels of attachment loss than patients
with GAP who did not smoke.
IgG2 serum levels as well as antibody levels against
A.a are significantly depressed in subjects with GAP
who smoked.
IMMUNOLOGIC OR HOST RELATED
FACTORS
 Human leukocyte antigens (HLA) - regulate immune response used as a marker for
Aggressive periodontitis mainly HLA-A9 and HLA-B15.
 Negative correlation between HLA-A2, HLA-A12 and localized aggressive
periodontitis (LAP) have been found.
 Risk of disease is found in subjects with HLA-A9 and B15 positive individuals
which is about 1.5 to 3.5 times greater than those lacking theses antigens.
Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
 Functional defects of PMNs, monocytes, or both:-
 Impair the chemotactic attraction of PMNs to the site
of infection or their ability to phagocytose & kill
microorganisms.
 Hyperresponsiveness of monocytes from LAP
patients involving their production of PGE2 in
response to LPS.
Increased connective tissue or bone loss.
Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
 There are characteristic functional defects of polymorphonuclear
leucocytes with hyperesponsive monocytes.
 Altered T helper or suppressor T-cell have also been studied.
 Polyclonal activation of B-cell is seen by microbial plaque.
 Schenkein et al have recently reported elevated Serum IL-17 levels in
GAgP. They Suggested “An altered systemic response to oral bacterial
antigens”.
Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
DIAGNOSIS
 Clinical diagnosis is based on information derived from a specific medical
and dental history and from the clinical examination of the periodontium.
 The purpose of clinical diagnosis is the identification of patients suffering
from AgP and of factors that have an impact on how the case should be
treated and monitored.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
DIAGNOSTIC CRITERIA
 Clinical examination
 probing pocket depth and
 attachment loss
 Radiological examination
 Microbiological examination,
 Evaluation of host response
 Genetic susceptibility to diagnose AgP
 Site specific destruction around incisors and molars is an important criteria to
diagnose LAP
 Severe destruction around minimum no. of teeth or generalized moderate to severe
destruction in early age again indicates aggressive nature of disease.
 Rate of bone loss in between two or more consecutive visits should be
carefully observed which can indicate the rapid rate of progression of
disease or active stage of disease.
 Presence of any systemic disease like Neutropenia, Leucocyte adhesion
deficiency, Chidiak -Higashi disease should be ruled out.
 Differential white blood cell count is important to rule out neutropenic
condition, in relation to confirm AgP.
Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical periodontology,Elsevier,12,2010;506-512.
 Incidental attachment loss due to other causes like presence of impacted
tooth or tumor or orthodontic tooth movement or advance decay of tooth
should be ruled out.
 Establishing the trace of familial aggregation of cases, on the basis of
history and clinical examination of family members can be done.
 A common strategy employed to detect early disease is to closely
monitor high-risk patients such as the siblings.
Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical periodontology,Elsevier,12,2010;506-512.
MICROBIOLOGIC DIAGNOSIS
 The international classification workshop indicated that the presence of
specific microorganisms like A.a. in particular represents one of the
secondary features of AgP.
 As such, microbiological diagnosis may be a useful laboratory addition
to establish a differential diagnosis between aggressive and chronic
forms of periodontitis.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
 Culture Methods
 Only current method capable of determining the in vitro
antimicrobial susceptibility of periodontal pathogens.
 Provide a quantitative measurement of all major
viable microorganisms in the specimen. Eg : Malachite
green bacitracin agar, TSBV agar
Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
Immunodiagnostic methods
It employs antibodies that recognize specific bacterial antigens to detect
target microorganism.
Advantages:
 Do not require viable bacteria
 Less susceptible to variations in sample processing
 Less time consuming
 Easier to perform than culture method
Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
 Bonta et al (1985) described an indirect immunofluroscence identification
method of A.a. with a detection limit of 500 cells/ml, a sensitivity of 82 -
100% and a specificity of 88-92% compared with selective &
nonselective culture.
 Evalusite test
Antibody based sandwich enzyme linked immunosorbent assay.
 Bacterial concentration fluroscene immunoassay.
Monoclonal antibodies to whole cell antigens
Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
GENETIC DIAGNOSIS
Nucleic acid probe
 DNA probes entails segments of single stranded nucleic acid, labeled
with an enzyme or radioisotope that can locate and bind to their
complementary nucleic acid sequences with low cross reactivity to non
target microorganism.
 DNA probe may target whole genomic DNA or individual genes.
Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
MANAGEMENT OF AGGRESSIVE
PERIODONTITIS
PRINCIPLES OF THERAPEUTIC INTERVENTION
 Treatment of Aggressive Periodontitis should only be initiated after
completion of a careful diagnosis.
 Successful treatment of Aggressive Periodontitis is considered to be
dependent on
 Early diagnosis
 Therapy towards elimination or suppression of the infecting
microorganisms
 Providing an environment conducive to long term maintenance.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
THERAPEUTIC MODALITIES
 Early detection is critically important in the treatment of aggressive
periodontitis (generalized or localized) because preventing further
destruction is often more predictable than attempting to regenerate
lost supporting tissues.
 Therefore, at the initial diagnosis, it is helpful to obtain any
previously taken radiographs to assess the rate of progression of
the disease.
Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
• Systemic Phase
• Initial Phase
• Re-evaluation Phase
• Surgical Phase
• Restorative Phase
• Maintenance Phase
THE PHASES OF
TREATMENT
INCLUDE:
MANAGEMENTOF AGGRESSIVEPERIODONTITIS
NON-SURGICAL THERAPY
Antimicrobial Therapy; Local Delivery
Full-Mouth Disinfection
Host Modulaton
Conventional Periodontal Therapy
•Surgical Resective Therapy
•Regenerative Therapy
NON-SURGICAL THERAPY
 Its effect on aggressive periodontitis is much less clear.
 SRP reduced the total sub-gingival bacterial counts and the proportions of certain
gram negative bacteria, but no periodontal pocket became free of A.
Actinomycetemcomitans.
 GAP responds well to SRP in the short term (upto 6months). However, after
6months, relapse and disease progression is reported.
 Gunsolley et al
 Haas et al, 2008
 Sigusch et al, 1998
Nonsurgical therapy alone as a treatment of localized aggressive
periodontitis -
 Slots & Rosling 1983, evaluated nonsurgical treatment alone in AgP.
Upon re-evaluation the combination of oral hygiene instructions along
with subgingival scaling and root planing did not eliminate, the
number of spirochetes, Aggregatibacter actinomycetemcomitans and
Capnocytophaga species but resulted in a small improvement in post-
treatment probing depths.
Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
Nonsurgical therapy alone as a treatment of
Generalized Aggressive Periodontitis
 Purucker et al 2001 provided scaling and root planing for 30 patients
with generalized aggressive periodontitis. Two months after scaling
they found that the deepest sites in each quadrant experienced an
approximate 1 mm reduction in probing depth and a 0.5 mm gain in
attachment levels.
Antimicrobial Therapy
 Systemic tetracycline (250 mg of tetracycline hydrochloride
4x/day for atleast 1 week) in conjunction with local mechanical
therapy.
Nutalapati R, Kasagani SK et al in 2014 , concluded that systemic
administration of doxycycline with full mouth SRP resulted in better
improvement of periodontal parameters and elimination of putative
periodontal pathogens such as A.a, P.g, T. forsythia, than amoxicillin plus
metronidazole alone in patients with LAP.
Nutalapati R et al. Comparative evaluation of amoxicillin plus metronidazole and doxycycline alone in the nonsurgical treatment of localized
aggressive periodontitis . Indian J Oral Sci 2014;5:112-8
 If surgery is indicated, systemic TTC 1000mg stat should be
prescribed approximately 1 hour before surgery.
 TTC resistant A.A - Amoxcillin-MTZ
Ciprofloxacin-MTZ
 Doxycline, 100 mg/day, may be used instead of TTC.
 Chlorhexidine rinses should be prescribed and continued for
several weeks to enhance plaque control and facilitate healing.
Nutalapati R et al. Comparative evaluation of amoxicillin plus metronidazole and doxycycline alone in the nonsurgical treatment of localized
aggressive periodontitis . Indian J Oral Sci 2014;5:112-8
 Genco et al treated LAP patients with-
SRP+Systemic administration of TTC
(250mg q.i.d x 14days every 8weeks).
18mths
Bone loss stopped, 1/3rd of defects demonstrated an increase in bone level
 Liljenberg and Lindhe treated LAP patients with
Systemic administration of TTC (250mg q.i.d for 2 weeks)
Modified Widman flap
Periodic recall visits (one visit every month for 6mnths, then one visit every 3 mnths)
The lesions healed more rapidly and more completely.
Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
 In practice, antibiotics are often used empirically without
microbial testing.
 Empiric use of antibiotics, such as a combination of amoxicillin &
MTZ, may be more clinically sound and cost-effective than
bacterial identification & antibiotic-sensitivity testing.
Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
GENERALISEDAGGRESSIVE PERIODONTITIS
 Sigusch et al (2001), Xajigeorgiou et al (2006), Guerrero at al
(2007) suggested use of Clindamycin + SRP showed increase in
clinical attachment gain and reduction in pocket depth.
 Kaner et al (2007) showed use of MTZ/amoxicillin given
immediately after SRP will be more effective in resolving deep
sited in GAP patients.
Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
Local delivery agents including solutions, gels,
fibers, chips
 Smaller dosages of topical agents can be delivered inside the
pocket.
 Avoidance the side effects of systemic antibacterial agents.
 Increases the exposure of the target microorganisms to higher
concentrations, of the medication.
Local drug delivery as an adjunct
 Sakellari D et al 2003 reported that tetracycline fibers, in
conjunction with scaling and root planing, in patients with
generalized aggressive periodontitis was more effective than scaling
and root planing alone and can also be used in situations where
systemic antibiotics are contraindicated.
Full-Mouth Disinfection
 Another approach to antimicrobial therapy
 The concept, described by Quirynen et al, consists of ;-
 Full mouth debridement completed in 2 appointments within a 24
hour period.
 The tongue is brushed with a chlorhexidine gel (1%) for 1 minute.
 Mouth rinsed with a chlorhexidine solution (0.2%) for 2minutes.
 Periodontal pockets irrigated with a chlorhexidine solution. (!%)
Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
Host Modulation
 A novel approach in the treatment of AP and difficult to control
forms of periodontal disease.
Modulates the host response to disease.
TTCs
Growth factors
EMPs
BMPs
Bisphosphonates
NSAIDs
Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
Access surgery
 Modified Widman flap procedure effective in reducing PPD.
Christersson et al, 1985
 SRP + TTC administration + MWF surgery.
Lindhe & Liljenberg, 1984
Lindhe & Liljenberg 1984, treated 16 cases of localized Aggressive
Periodontitis with a combination of tetracycline and modified Widman
flap surgery. After 5years of maintenance they found significant
improvements in probing depths and attachment levels and evidence
of radiographic bonefill.
Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
Surgical Resective Therapy
 Effective to reduce or eliminate pocket depth
 Difficult to accomplish if adjacent teeth are unaffected, (in cases
of LAP)
 Careful evaluation of the risks versus the benefits of surgery must
be considered on a case-by-case basis.
Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
Regenerative Surgery
 Bone grafting
• Guided tissue regeneration using membranes,
 The use of biologic modifiers &
 Combinations of the above
Designed for the regeneration of steep vertical defects & have very specific indications
:- defect morphology, tooth mobility & furcation involvement.
Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
Bone grafting
 Yukna & Sepe, reported on average defect fill of 80% with FDBA in 12
patients with LAP at re-entry after 12months.
 Evans et al evaluated a 4:1 ratio combination of B-tricalcium phosphate/
TTC, hydroxyapatite/TTC or freeze-dried bone allograft/TTC in patients
with LAP which showed significant increase in defect depth & pocket
depth were detected for each graft material.
 Hydroxyapatite/TTC > B-tricalcium phosphate/ TTC.
Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
 OTHERS
1. Autogenous bone chips (Oahrains and Kaslick-1981)
2. Osseous coagulum (Burnette and Steroark-1969)
3. Frozen autogenous hip marrow (De Marco and Scaletter-1970)
GUIDED TISSUE REGENERATION
 PD reduction & clinical attachment gain significantly greater in the PTFE
membrane-treated defects than in osseous surgery-treated defects.
Sirirat M, Kasetsuwan J, Jeffcoat MK. Comparison between 2 surgical techniques for the treatment of early-onset periodontitis. J
Periodontol1996:67: 603-607
ENAMEL MATRIX PROTEINS
Esposito et al (2003) reported that use of emdogain can improve clinical attachment level (1.3mm)
and reduction in probing depth (1.0mm) compared to flap debridement alone.
Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
PHOTODYNAMIC THERAPY
 Study by Rafael R. de Oliveira et al (2009) concluded that PDT and SRP showed good
results in the treatment of aggressive periodontitis.
Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
OZONIZED WATER IN TREATMENT
OF AP.
 Effect of ozonized water on oral microorganisms & dental plaque was studied by
Nagayoshi et al., (2002).
 Useful in reducing the infections caused by oral microorganisms in dental plaque.
 Ramzy et al assessed the clinical and antimicrobial effect of ozonized water in
management of aggressive periodontitis, found that ozone has a potent
antibacterial effect explained by the fact that it causes disruption of the envelope
integrity through peroxidation of phospholipids.
Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
 Extraction when necessary with immediate replacement of anterior teeth with
a hopeless prognosis.
 Periodontal surgery / Regenerative therapy .
Pocket elimination procedure.
Isolated infrabony lesions - GTR / bone grafting techniques.
 The authors reported significant improvements in both probing depths and
attachment levels.
Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
 Occlusal adjustment in case of tooth migration
In few cases after successful periodontal treatment and after the condition
has become fully stable, gentle orthodontic retraction of labially drifted
upper incisors might be considered if they can be stabilized behind the
lower lip or splinted in a stable position.
 Prosthetics - for missing teeth after extraction of teeth with poor prognosis.
 Maintenance - Patient should be recalled every 3 month for oral hygiene
reinforcement and scaling.
Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
FUTURE DIRECTIONS
 Genetic tests in Diagnosis of Aggressive Periodontitis.
 Use of host modulation therapy.
 Periodontal vaccines.
PERIODONTAL MAINTENANCE
 The duration between recall visits should be usually short during the
period after completion of therapy, generally no longer than 3-month
intervals.
 Monitoring as frequently as every 3-4 weeks may be necessary when the
disease is thought to be active.
 If signs of disease activity and progression persist despite therapeutic
efforts, frequent visits and good patient compliance, microbial testing
may be indicated.
CONCLUSION
 AgP is definitely a different entity than commonly present chronic
periodontitis. Quality of plaque i.e. specific micro organisms seems to be
responsible for severe periodontal destruction. Susceptibility of individuals is
further determined by genetic, environmental and host immune factor.
 Phase I therapy is mandatory in controlling the infection and antibiotics act as
adjuvant to it. Periodontal surgical therapy has definitely given positive
results.
Thus a thorough examination leading to accurate diagnosis and subsequent
comprehensive treatment is the supreme responsibility.
REFERENCES
 Maurizio S, Tonetti and Mombelli A : Aggressive Periodontitis in Clinical
Periodontology and Implant Dentistry, Wiley 2010; 6: 428-458.
 Kulkarni C, Kinane D. Host response in aggressive periodontitis.
Periodontology 2000; 2008,14:79–91.
 American Academy of Periodontology. Glossary of periodontal terms.4;2001.
 Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical
periodontology,Elsevier,12,2010;506-512.
 Armitage G C, Cullinan M. Comparison of the clinical features of chronic and
aggressive periodontitis. Periodontol 2000; 2010,53:12–27.
 Armitage G C. Comparison of the microbiological features of chronic and
aggressive periodontitis. Periodontol 2000; 2010,53:70–88.
 Vieira A , Albandar J. Role of genetic factors in the pathogenesis of
aggressive periodontitis. Periodontol 2000; 2014,65:92–106.
 KononenE , Muller H. Microbiology of aggressive periodontitis.
Periodontol 2000;2014,65:46–78.
 Albandar J. Aggressive periodontitis:case definition and diagnostic
criteria. Periodontol 2000;2014,65:13–26.
 Baer PN. The case for periodontosis as a clinical entity. J Periodontol
1971: 42: 516-520.
 Nutalapati R, Kasagani SK, Jampani ND, Mutthineni RB, Chintala
S, Kode VS. Comparative evaluation of amoxicillin plus metronidazole
and doxycycline alone in the nonsurgical treatment of localized
aggressive periodontitis . Indian J Oral Sci 2014;5:112-8
 Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s
Clinical periodontology and implant dentistry. Elsevier 5:438-460.
 Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and
implantology.2;2019:339-363.
 Alpan AL. Aggressive Periodontitis In: Periodontology and Dental
implantology. 2018;103-129.
 Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of
aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
 Gottlieb B. The formation of the pocket: diffuse atrophy of alveolar bone. J
Am Dent Assoc;1998,15:462–476.
THANK-YOU

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aggressive periodontitis

  • 1. P MIKITHA POSTGRADUATE AECS MAARUTI COLLEGE OF DENTAL SCIENCES AGGRESSIVE PERIODONTITIS
  • 2. CONTENTS  Introduction  History  Classification  Localized aggressive periodontitis Prevalence Clinical findings Radiographic features  Generalized aggressive periodontitis Prevalence Clinical findings Radiographic findings  Etiology and pathogenesis  Diagnosis  Treatment consideration  Conclusion  References
  • 3.  Destructive periodontal diseases affecting the connective tissue attachment & alveolar bone supporting the teeth have long been considered the principal cause for tooth loss.  At the 1999 International classification workshop, the different forms of periodontitis were reclassified into three major forms (chronic, aggressive, necrotizing forms of periodontitis and periodontal manifestations of systemic diseases). INTRODUCTION
  • 4. HISTORY Diffuse atrophy of alveolar bone. Gottlieb,1923 Early-onset Periodontits. Page & Boab 1989. Juvenile Periodontitis. Deep cementopathia, Gottlieb,1928 Chaput et al,1967. Butler 1969 1. Pre-pubertal Periodontitis. 2. Juvenile Periodontits. 3. RP Periodontiits 1999 AAP International Workshop for Classification Aggressive Periodontitis. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 5. In 1971, Paul Baer Aggressive periodontitis Disease of the periodontium occurring in an otherwise healthy adolescent Characterized by a rapid loss of alveolar bone about > 1 tooth of the permanent dentition. The only teeth affected are. 1. 1st Molars. 2. Incisors. Amount of destruction manifestated is not commensurate with the amount of local irritants. Generalised form, it may affect most of the dentition. Baer PN. The case for periodontosis as a clinical entity. J Periodontol 1971: 42: 516-520.
  • 6. Baer proposed 7 criteria to define the disease Early onset of the disease during the circumpubertal period. (11 & 13years) Vertical alv bone loss at the 1st permanent molars & one or more incisor teeth. A rapid rate of disease progression The disease affects only the permanent dentition. The amount of local etiologic factors is not commensurate with the severity of the pdl destruction. Predominant in females (3:1) It has a familial pattern. Baer PN. The case for periodontosis as a clinical entity. J Periodontol 1971: 42: 516-520.
  • 7. 1999, International workshop for the classification of Pdl disease and conditions defined the entity of AP as being characterised by “3 primary features”- Rapid loss of attachment and tooth- supporting bone. Subject is otherwise healthy. Familial aggregation. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 8.  Amount of microbial deposits inconsistent with the severity of periodontal tissue destruction.  Elevated proportions of Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis.  Phagocytic abnormalities.  Hyper-responsive macrophage phenotype, including production of PGE2 and IL-1 in response to bacterial endotoxins.  Progression of attachment loss and bone loss may be self-arresting. Secondary features that are considered to be generally but not universally present are: Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 9. American Academy of Periodontology workshop, 1999 Aggressive Periodontitis Localized Aggressive Periodontitis Generalized Aggressive Periodontitis
  • 10.
  • 11.
  • 12.  Aggressive periodontitis is a specific type of periodontitis featuring rapid attachment loss, bone destruction and familial aggregation exhibiting inconsistent amounts of microbial deposits with severe periodontal tissue destruction, phagocyte abnormalities and elevated proportions of Aggregatibacter actinomycetemcomitans and, in some, Porphyromonas gingivalis in otherwise healthy patients. (Glossary of periodontal terms 2001, 4th ed) DEFINITION American Academy of Periodontology. Glossary of periodontal terms.4;2001.
  • 13.
  • 14.  Localised Aggressive Periodontitis is characterised by circumpubertal onset, localised first molar/incisor presentation with interproximal attachment loss associated with at least two permanent teeth and involving no more than two teeth other than first molars and incisors having robust serum antibody response to infecting agents. (Glossary of periodontal terms 2001,4th ed) American Academy of Periodontology. Glossary of periodontal terms.4;2001. LOCALISED AGGRESSIVE PERIODONTITIS
  • 15. PREVALENCE AND DISTRIBUTION  It is estimated to be below 1%.  Blacks– mostly male blacks- 2.9 times more likely to have disease than black females.  (Baer 1971, Manson and Lehner 1974) concluded female to male ratio as 3:1  Primary dentition: In 5 to 11 year olds it ranges from 0.9 - 4.5% of subjects (Sweeney et al 1987)  Permanent dentition: In the permanent dentition of 13-20 year old individuals majority of studies have reported a prevalence of periodontitis of less than 1% (usually 0.1-0.2% in caucasian population). Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 16. CLINICAL FINDINGS  Localized first molar/incisor with interproximal attachment loss.  The most striking feature  Lack of clinical inflammation, despite the presence of deep periodontal pockets
  • 17. Disto-labial migration of central incisor in LAP Periodontal Abscess Deep, dull radiating pain may occur with mastication. Regional lymph node enlargement
  • 18.  Clinically there is small amount of plaque ,which forms a thin film on the tooth that rarely mineralizes to become calculus.  Most commonly there is migration and mobility of first molars and incisors. Classically the maxillary incisors move in distolabial direction.  Concomitant to anterior tooth migration there is an apparent increase in size of the clinical crown. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 19. RADIOGRAPHIC FINDINGS  Vertical loss of alveolar bone around first molars and incisors.  Rate of bone loss is 3-4times faster than in chronic periodontitis.  Arc-shaped bone loss from distal of 2nd Premolar to Mesial of 2nd Molar and often presents a mirror-image pattern on the radiograph.  Bone defects usually bilateral, affecting 1st Molars & Incisors. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 20.  Although the most important measurement is that of attachment loss by probing in younger subjects a currently utilized approach is measurement of distance between CEJ and alveolar crest on bitewing radiographs.
  • 21.
  • 22. DISTRIBUTION OF LESION The classical distribution of lesions in first molar / incisor region may be explained by following :  After initial colonization of the first permanent teeth to erupt (first molars and incisors) A.a evades the host defenses by different mechanisms. After initial attack, adequate immune responses are stimulated to produce opsonizing antibodies to enhance phagocytosis of invading bacteria and neutralize destructive factors. In this manner colonization of other sites may be prevented. (Zambon1983). Armitage G C, Cullinan M. Comparison of the clinical features of chronic and aggressive periodontitis. Periodontol 2000; 2010,53:12–27.
  • 23.  Bacteria antagonistic to A.a may develop, thereby decreasing the destructiveness of the lesions and reducing the number of colonization sites (Hillman 1982).  A.a may lose its leukotoxin producing ability for unknown reasons. When this happens the progress of the disease becomes arrested or retarded and new colonization sites averted. Armitage G C, Cullinan M. Comparison of the clinical features of chronic and aggressive periodontitis. Periodontol 2000; 2010,53:12–27.
  • 24.  The possibility that a defect in cementum formation may be responsible for localization of the lesion has been suggested (Page 1985). Root surfaces of teeth extracted from patients with LAP have been found to have hypoplastic or aplastic cementum (Lindskong 1983)
  • 25. CLINICAL COURSE  LAgP progresses rapidly.  There is evidence that rate of progression is about three to four times faster than found in typical periodontitis (Baer 1971,1974).  In affected persons bone resorption progresses until the teeth are treated, exfoliated or extracted. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 26. BURN-OUT PHENOMENON • Initially it was thought that LAP gradually becomes GAP over time. But some cases of LAP don’t show any increased bone destruction, are known to arrest spontaneously, leading to caessation of disease activity. • Proposed by Ranney. Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical periodontology,Elsevier,12,2010;506-512.
  • 27. SEQUELAE OF LOCALIZED AGGRESSIVE PERIODONTITIS  Hormand and Frandsen (1979) in a study of 156 patients, presented evidence for progression of the disease from a localized to generalized form.  Case report by Shapira, Van Dyke et al (1994) of periodontitis patients who were followed up for many years and findings are:  Idiopathic Prepubertal periodontitis at age 10.  LJP at age 22, bone loss involving all the permanent first molars and maxillary and mandibular incisors.  Rapidly progressive periodontitis at age 29. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 28. GENERALISEDAGGRESSIVE PERIODONTITIS Encompasses the diseases that were previously classified as generalised juvenile periodontitis and rapidly progressive periodontitis.
  • 30.  Generalised Aggressive Periodontitis usually affects person under 30 years of age or may be older with generalised interproximal attachment loss affecting at least three teeth other than first molars and incisors and there is a pronounced episodic nature of the destruction of attachment and alveolar bone having poor serum antibody response to infecting agents. (Glossary of periodontal terms 2001,4th ed) American Academy of Periodontology. Glossary of periodontal terms.4;2001.
  • 31. PREVALENCE AND DISTRIBUTION  Loe and colleagues (1986), in a study of Sri Lankan subjects aged 14 – 46 yrs showed that 8 % of the population had rapid progression of periodontal disease characterized by yearly loss of attachment of 0.1 to 1mm.  National survey of adolescents in U.S, aged 14-17 yrs old. ( Loe & Brown, 1991) prevalence rate – 0.13 %  Blacks were found to be at much higher risk than whites for all forms of AgP .  Males were more likely to have GAP than females. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 32. CLINICAL FINDINGS  As seen in LAP, patients with GAP often show small amount of bacterial plaque associated with affected areas.  Quantitatively the amount of plaque is inconsistent with the amount of destruction seen. Qualitatively P.gingivalis, A.a and T.forsythus are frequently detected.  Generalized interproximal attachment loss affecting atleast three permanent teeth other than first molars and incisors.  Pronounced episodic destruction of attachment and alveolar bone.  Poor serum antibody response to infecting agents.  < 30years of age, but patients may be older. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 33.  Two gingival tissue responses can be found in cases of GAgP . Severe, acutely inflamed tissue that is often proliferating, ulcerated, and fiery red- DESTRUCTIVE STAGE. #Bleeding #Suppuration #Active loss of attachment & bone Tissues appears pink, free of inflammation and occasionally with some degree of stippling– NON- DESTRUCTIVE STAGE. #Deep pockets #Bone & attachment levels relatively stable (Period of Quiscence) Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 34.  The destruction appears to occur episodically followed by stages of quiescence of variable time.  Sometimes patients may also present with systemic manifestations like weight loss, mental depression, general malaise.  Lesions may be arrested or spontaneous after therapy, whereas others may continue to progress inexorably to TOOTH LOSS despite intervention with conventional therapy. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 35. RADIOGRAPHIC FINDINGS No definite pattern of distributiom. The radiographic picture in GAgP can range from severe bone loss associated with number of teeth to advanced bone loss affecting majority of the teeth in the dentition. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 36. BONE LOSS IN GAgP  Page and co-workers demonstrated osseous destruction ranging from 25-60% during a 9-week period.  Despite this extreme loss other sites in the same patient showed no bone loss. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 37. INCIDENTAL ATTACHMENT LOSS Often subjects present with attachment loss that does not fit the specific diagnostic criteria. (AP or CP) It includes: • Recessions associated with trauma or tooth position. • Attachment loss associated with impacted 3rd molars, removal of impacted 3rd molars, etc. • These patients are a high-risk group for AP or CP. Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical periodontology,Elsevier,12,2010;506-512.
  • 38. ETIOLOGY AND PATHOGENESIS Microbiologic factors Genetic factors Immunologic factors Current concepts Environmental factors AgP
  • 39. MICROBIOLOGIC FACTORS  Acceptance of bacterial etiology of aggressive forms of periodontitis has been particularly difficult since clinical presentation of cases frequently shows little visible plaque accumulation.  Of great importance is microscopic studies demonstrating the layer of bacterial deposits on the root surface of advanced AgP lesions (Listgarten 1976). KononenE , Muller H. Microbiology of aggressive periodontitis. Periodontol 2000;2014,65: 46–78.
  • 40. DOMINANT ORGANISMS 1. A.a (Approx. 90%) 2. Capnocytophaga sp 3. E.Corrodens 4. P.intermedia 5. Motile anaerobic rods, such as C.rectus 6. Gram-positive isolates were mostly. • Streptococci • Actinomycetes • Peptostreptococci 1. P.gingivalis 2. A.a 3. Bacteroides forsythus LAP GAP KononenE , Muller H. Microbiology of aggressive periodontitis. Periodontol 2000;2014,65: 46–78.
  • 41. A.a has been implicated as the primary pathogen associated with LAP. As summarized by Tonetti and Mombelli, it is based on the following evidence. 1. It is found in high frequency (approx.90%) in lesions characteristic of LAP. 2. Sites with evidence of disease progression often show elevated levels of A.a. 3. Many pts with the clinical manifestations of LAP have significantly elevated serum antibody titers to A.a. 4. Clinical studies show a correlation between reduction in the subgingival load of A.a during treatment and a successful clinical response. 5. It produces a no. of virulence factors that may contribute to the disease process. KononenE , Muller H. Microbiology of aggressive periodontitis. Periodontol 2000;2014,65: 46–78.
  • 42. DETERMINANTS OF VIRULENCE AND PATHOGENIC POTENTIAL OF A. ACTINOMYCETEMCOMITANS FACTOR SIGNIFICANCE Leukotoxin Destroys human PMNs and macrophages Endotoxin Activates host cells to secrete inflammatory mediators (PGs,IL-1β, TNF-α) Bacteriocin Inhibit growth of beneficial species Immunosuppressive factors Inhibit IgG and Ig M production Collagenase Cause degradation of collagen Chemotactic inhibition factors Inhibit neutrophil chemotaxis KononenE , Muller H. Microbiology of aggressive periodontitis. Periodontol 2000;2014,65: 46–78.
  • 43. GENETIC FACTORS  Segregation and Linkage analysis studies have shown an autosomal dominant pattern of inheritance. (Saxen & Nevanlinna 1984, Beaty et al 1987, Hart et al 1992)  Marazita et al 1994 carried out the largest and most comprehensive segregation analysis and concluded autosomal dominant model of inheritance.  Antibody response to periodontal pathogens particularly A.a is under genetic control, and that the ability to mount high titers of specific, protective antibody (primarily IgG2) against A.a may be race dependent. Vieira A , Albandar J. Role of genetic factors in the pathogenesis of aggressive periodontitis. Periodontol 2000; 2014,65:92–106.
  • 44.  Boughman et al 1986 carried out a linkage study and concluded linkage of Juvenile Periodontitis to a Vitamin D binding locus on chromosome 4.  Hart et al in 1993 suggested that a locus responsible for AgP was located on chromosome 1q25.  Lastly it supports a semigeneral transmission model which says that a few loci with small effects contribute to AgP, with possibly the influence of environmental factors. Vieira A , Albandar J. Role of genetic factors in the pathogenesis of aggressive periodontitis. Periodontol 2000; 2014,65:92–106.
  • 45. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 46. ENVIRONMENTAL FACTORS  The amount and duration of smoking is important variable to influence the extent of destruction seen in young adults.  Patients with GAgP with smoking habit have more affected teeth and more attachment loss than nonsmoking patients with GAgP.  Smoking may not have the same influence on LAgP. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 47. Schenkein et al. 1995: Cigarette smoking was shown to be a risk factor for patients with generalized forms of AgP. Smokers with GAP had more affected teeth and greater mean levels of attachment loss than patients with GAP who did not smoke. IgG2 serum levels as well as antibody levels against A.a are significantly depressed in subjects with GAP who smoked.
  • 48. IMMUNOLOGIC OR HOST RELATED FACTORS  Human leukocyte antigens (HLA) - regulate immune response used as a marker for Aggressive periodontitis mainly HLA-A9 and HLA-B15.  Negative correlation between HLA-A2, HLA-A12 and localized aggressive periodontitis (LAP) have been found.  Risk of disease is found in subjects with HLA-A9 and B15 positive individuals which is about 1.5 to 3.5 times greater than those lacking theses antigens. Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
  • 49.  Functional defects of PMNs, monocytes, or both:-  Impair the chemotactic attraction of PMNs to the site of infection or their ability to phagocytose & kill microorganisms.  Hyperresponsiveness of monocytes from LAP patients involving their production of PGE2 in response to LPS. Increased connective tissue or bone loss. Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
  • 50.  There are characteristic functional defects of polymorphonuclear leucocytes with hyperesponsive monocytes.  Altered T helper or suppressor T-cell have also been studied.  Polyclonal activation of B-cell is seen by microbial plaque.  Schenkein et al have recently reported elevated Serum IL-17 levels in GAgP. They Suggested “An altered systemic response to oral bacterial antigens”. Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
  • 51. DIAGNOSIS  Clinical diagnosis is based on information derived from a specific medical and dental history and from the clinical examination of the periodontium.  The purpose of clinical diagnosis is the identification of patients suffering from AgP and of factors that have an impact on how the case should be treated and monitored. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 53.  Clinical examination  probing pocket depth and  attachment loss  Radiological examination  Microbiological examination,  Evaluation of host response  Genetic susceptibility to diagnose AgP  Site specific destruction around incisors and molars is an important criteria to diagnose LAP  Severe destruction around minimum no. of teeth or generalized moderate to severe destruction in early age again indicates aggressive nature of disease.
  • 54.  Rate of bone loss in between two or more consecutive visits should be carefully observed which can indicate the rapid rate of progression of disease or active stage of disease.  Presence of any systemic disease like Neutropenia, Leucocyte adhesion deficiency, Chidiak -Higashi disease should be ruled out.  Differential white blood cell count is important to rule out neutropenic condition, in relation to confirm AgP. Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical periodontology,Elsevier,12,2010;506-512.
  • 55.  Incidental attachment loss due to other causes like presence of impacted tooth or tumor or orthodontic tooth movement or advance decay of tooth should be ruled out.  Establishing the trace of familial aggregation of cases, on the basis of history and clinical examination of family members can be done.  A common strategy employed to detect early disease is to closely monitor high-risk patients such as the siblings. Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical periodontology,Elsevier,12,2010;506-512.
  • 56. MICROBIOLOGIC DIAGNOSIS  The international classification workshop indicated that the presence of specific microorganisms like A.a. in particular represents one of the secondary features of AgP.  As such, microbiological diagnosis may be a useful laboratory addition to establish a differential diagnosis between aggressive and chronic forms of periodontitis. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 57.  Culture Methods  Only current method capable of determining the in vitro antimicrobial susceptibility of periodontal pathogens.  Provide a quantitative measurement of all major viable microorganisms in the specimen. Eg : Malachite green bacitracin agar, TSBV agar Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
  • 58. Immunodiagnostic methods It employs antibodies that recognize specific bacterial antigens to detect target microorganism. Advantages:  Do not require viable bacteria  Less susceptible to variations in sample processing  Less time consuming  Easier to perform than culture method Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
  • 59.  Bonta et al (1985) described an indirect immunofluroscence identification method of A.a. with a detection limit of 500 cells/ml, a sensitivity of 82 - 100% and a specificity of 88-92% compared with selective & nonselective culture.  Evalusite test Antibody based sandwich enzyme linked immunosorbent assay.  Bacterial concentration fluroscene immunoassay. Monoclonal antibodies to whole cell antigens Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
  • 60. GENETIC DIAGNOSIS Nucleic acid probe  DNA probes entails segments of single stranded nucleic acid, labeled with an enzyme or radioisotope that can locate and bind to their complementary nucleic acid sequences with low cross reactivity to non target microorganism.  DNA probe may target whole genomic DNA or individual genes. Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
  • 62. PRINCIPLES OF THERAPEUTIC INTERVENTION  Treatment of Aggressive Periodontitis should only be initiated after completion of a careful diagnosis.  Successful treatment of Aggressive Periodontitis is considered to be dependent on  Early diagnosis  Therapy towards elimination or suppression of the infecting microorganisms  Providing an environment conducive to long term maintenance. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 63. THERAPEUTIC MODALITIES  Early detection is critically important in the treatment of aggressive periodontitis (generalized or localized) because preventing further destruction is often more predictable than attempting to regenerate lost supporting tissues.  Therefore, at the initial diagnosis, it is helpful to obtain any previously taken radiographs to assess the rate of progression of the disease. Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 64. • Systemic Phase • Initial Phase • Re-evaluation Phase • Surgical Phase • Restorative Phase • Maintenance Phase THE PHASES OF TREATMENT INCLUDE:
  • 65.
  • 66. MANAGEMENTOF AGGRESSIVEPERIODONTITIS NON-SURGICAL THERAPY Antimicrobial Therapy; Local Delivery Full-Mouth Disinfection Host Modulaton Conventional Periodontal Therapy •Surgical Resective Therapy •Regenerative Therapy
  • 67. NON-SURGICAL THERAPY  Its effect on aggressive periodontitis is much less clear.  SRP reduced the total sub-gingival bacterial counts and the proportions of certain gram negative bacteria, but no periodontal pocket became free of A. Actinomycetemcomitans.  GAP responds well to SRP in the short term (upto 6months). However, after 6months, relapse and disease progression is reported.  Gunsolley et al  Haas et al, 2008  Sigusch et al, 1998
  • 68. Nonsurgical therapy alone as a treatment of localized aggressive periodontitis -  Slots & Rosling 1983, evaluated nonsurgical treatment alone in AgP. Upon re-evaluation the combination of oral hygiene instructions along with subgingival scaling and root planing did not eliminate, the number of spirochetes, Aggregatibacter actinomycetemcomitans and Capnocytophaga species but resulted in a small improvement in post- treatment probing depths. Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
  • 69. Nonsurgical therapy alone as a treatment of Generalized Aggressive Periodontitis  Purucker et al 2001 provided scaling and root planing for 30 patients with generalized aggressive periodontitis. Two months after scaling they found that the deepest sites in each quadrant experienced an approximate 1 mm reduction in probing depth and a 0.5 mm gain in attachment levels.
  • 70. Antimicrobial Therapy  Systemic tetracycline (250 mg of tetracycline hydrochloride 4x/day for atleast 1 week) in conjunction with local mechanical therapy. Nutalapati R, Kasagani SK et al in 2014 , concluded that systemic administration of doxycycline with full mouth SRP resulted in better improvement of periodontal parameters and elimination of putative periodontal pathogens such as A.a, P.g, T. forsythia, than amoxicillin plus metronidazole alone in patients with LAP. Nutalapati R et al. Comparative evaluation of amoxicillin plus metronidazole and doxycycline alone in the nonsurgical treatment of localized aggressive periodontitis . Indian J Oral Sci 2014;5:112-8
  • 71.  If surgery is indicated, systemic TTC 1000mg stat should be prescribed approximately 1 hour before surgery.  TTC resistant A.A - Amoxcillin-MTZ Ciprofloxacin-MTZ  Doxycline, 100 mg/day, may be used instead of TTC.  Chlorhexidine rinses should be prescribed and continued for several weeks to enhance plaque control and facilitate healing. Nutalapati R et al. Comparative evaluation of amoxicillin plus metronidazole and doxycycline alone in the nonsurgical treatment of localized aggressive periodontitis . Indian J Oral Sci 2014;5:112-8
  • 72.  Genco et al treated LAP patients with- SRP+Systemic administration of TTC (250mg q.i.d x 14days every 8weeks). 18mths Bone loss stopped, 1/3rd of defects demonstrated an increase in bone level  Liljenberg and Lindhe treated LAP patients with Systemic administration of TTC (250mg q.i.d for 2 weeks) Modified Widman flap Periodic recall visits (one visit every month for 6mnths, then one visit every 3 mnths) The lesions healed more rapidly and more completely. Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
  • 73.  In practice, antibiotics are often used empirically without microbial testing.  Empiric use of antibiotics, such as a combination of amoxicillin & MTZ, may be more clinically sound and cost-effective than bacterial identification & antibiotic-sensitivity testing. Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
  • 74.
  • 75.
  • 76. GENERALISEDAGGRESSIVE PERIODONTITIS  Sigusch et al (2001), Xajigeorgiou et al (2006), Guerrero at al (2007) suggested use of Clindamycin + SRP showed increase in clinical attachment gain and reduction in pocket depth.  Kaner et al (2007) showed use of MTZ/amoxicillin given immediately after SRP will be more effective in resolving deep sited in GAP patients. Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
  • 77. Local delivery agents including solutions, gels, fibers, chips  Smaller dosages of topical agents can be delivered inside the pocket.  Avoidance the side effects of systemic antibacterial agents.  Increases the exposure of the target microorganisms to higher concentrations, of the medication.
  • 78. Local drug delivery as an adjunct  Sakellari D et al 2003 reported that tetracycline fibers, in conjunction with scaling and root planing, in patients with generalized aggressive periodontitis was more effective than scaling and root planing alone and can also be used in situations where systemic antibiotics are contraindicated.
  • 79. Full-Mouth Disinfection  Another approach to antimicrobial therapy  The concept, described by Quirynen et al, consists of ;-  Full mouth debridement completed in 2 appointments within a 24 hour period.  The tongue is brushed with a chlorhexidine gel (1%) for 1 minute.  Mouth rinsed with a chlorhexidine solution (0.2%) for 2minutes.  Periodontal pockets irrigated with a chlorhexidine solution. (!%) Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.
  • 80. Host Modulation  A novel approach in the treatment of AP and difficult to control forms of periodontal disease. Modulates the host response to disease. TTCs Growth factors EMPs BMPs Bisphosphonates NSAIDs Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
  • 81. Access surgery  Modified Widman flap procedure effective in reducing PPD. Christersson et al, 1985  SRP + TTC administration + MWF surgery. Lindhe & Liljenberg, 1984
  • 82. Lindhe & Liljenberg 1984, treated 16 cases of localized Aggressive Periodontitis with a combination of tetracycline and modified Widman flap surgery. After 5years of maintenance they found significant improvements in probing depths and attachment levels and evidence of radiographic bonefill. Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
  • 83. Surgical Resective Therapy  Effective to reduce or eliminate pocket depth  Difficult to accomplish if adjacent teeth are unaffected, (in cases of LAP)  Careful evaluation of the risks versus the benefits of surgery must be considered on a case-by-case basis. Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
  • 84. Regenerative Surgery  Bone grafting • Guided tissue regeneration using membranes,  The use of biologic modifiers &  Combinations of the above Designed for the regeneration of steep vertical defects & have very specific indications :- defect morphology, tooth mobility & furcation involvement. Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
  • 85. Bone grafting  Yukna & Sepe, reported on average defect fill of 80% with FDBA in 12 patients with LAP at re-entry after 12months.  Evans et al evaluated a 4:1 ratio combination of B-tricalcium phosphate/ TTC, hydroxyapatite/TTC or freeze-dried bone allograft/TTC in patients with LAP which showed significant increase in defect depth & pocket depth were detected for each graft material.  Hydroxyapatite/TTC > B-tricalcium phosphate/ TTC. Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
  • 86.  OTHERS 1. Autogenous bone chips (Oahrains and Kaslick-1981) 2. Osseous coagulum (Burnette and Steroark-1969) 3. Frozen autogenous hip marrow (De Marco and Scaletter-1970)
  • 87. GUIDED TISSUE REGENERATION  PD reduction & clinical attachment gain significantly greater in the PTFE membrane-treated defects than in osseous surgery-treated defects. Sirirat M, Kasetsuwan J, Jeffcoat MK. Comparison between 2 surgical techniques for the treatment of early-onset periodontitis. J Periodontol1996:67: 603-607 ENAMEL MATRIX PROTEINS Esposito et al (2003) reported that use of emdogain can improve clinical attachment level (1.3mm) and reduction in probing depth (1.0mm) compared to flap debridement alone. Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
  • 88. PHOTODYNAMIC THERAPY  Study by Rafael R. de Oliveira et al (2009) concluded that PDT and SRP showed good results in the treatment of aggressive periodontitis. Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
  • 89. OZONIZED WATER IN TREATMENT OF AP.  Effect of ozonized water on oral microorganisms & dental plaque was studied by Nagayoshi et al., (2002).  Useful in reducing the infections caused by oral microorganisms in dental plaque.  Ramzy et al assessed the clinical and antimicrobial effect of ozonized water in management of aggressive periodontitis, found that ozone has a potent antibacterial effect explained by the fact that it causes disruption of the envelope integrity through peroxidation of phospholipids. Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.
  • 90.  Extraction when necessary with immediate replacement of anterior teeth with a hopeless prognosis.  Periodontal surgery / Regenerative therapy . Pocket elimination procedure. Isolated infrabony lesions - GTR / bone grafting techniques.  The authors reported significant improvements in both probing depths and attachment levels. Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
  • 91.  Occlusal adjustment in case of tooth migration In few cases after successful periodontal treatment and after the condition has become fully stable, gentle orthodontic retraction of labially drifted upper incisors might be considered if they can be stabilized behind the lower lip or splinted in a stable position.  Prosthetics - for missing teeth after extraction of teeth with poor prognosis.  Maintenance - Patient should be recalled every 3 month for oral hygiene reinforcement and scaling. Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.
  • 92. FUTURE DIRECTIONS  Genetic tests in Diagnosis of Aggressive Periodontitis.  Use of host modulation therapy.  Periodontal vaccines.
  • 93. PERIODONTAL MAINTENANCE  The duration between recall visits should be usually short during the period after completion of therapy, generally no longer than 3-month intervals.  Monitoring as frequently as every 3-4 weeks may be necessary when the disease is thought to be active.  If signs of disease activity and progression persist despite therapeutic efforts, frequent visits and good patient compliance, microbial testing may be indicated.
  • 94. CONCLUSION  AgP is definitely a different entity than commonly present chronic periodontitis. Quality of plaque i.e. specific micro organisms seems to be responsible for severe periodontal destruction. Susceptibility of individuals is further determined by genetic, environmental and host immune factor.  Phase I therapy is mandatory in controlling the infection and antibiotics act as adjuvant to it. Periodontal surgical therapy has definitely given positive results. Thus a thorough examination leading to accurate diagnosis and subsequent comprehensive treatment is the supreme responsibility.
  • 95. REFERENCES  Maurizio S, Tonetti and Mombelli A : Aggressive Periodontitis in Clinical Periodontology and Implant Dentistry, Wiley 2010; 6: 428-458.  Kulkarni C, Kinane D. Host response in aggressive periodontitis. Periodontology 2000; 2008,14:79–91.  American Academy of Periodontology. Glossary of periodontal terms.4;2001.  Novak K F and Novak J M:Aggressive Periodontitis in Carranza’s clinical periodontology,Elsevier,12,2010;506-512.  Armitage G C, Cullinan M. Comparison of the clinical features of chronic and aggressive periodontitis. Periodontol 2000; 2010,53:12–27.  Armitage G C. Comparison of the microbiological features of chronic and aggressive periodontitis. Periodontol 2000; 2010,53:70–88.
  • 96.  Vieira A , Albandar J. Role of genetic factors in the pathogenesis of aggressive periodontitis. Periodontol 2000; 2014,65:92–106.  KononenE , Muller H. Microbiology of aggressive periodontitis. Periodontol 2000;2014,65:46–78.  Albandar J. Aggressive periodontitis:case definition and diagnostic criteria. Periodontol 2000;2014,65:13–26.  Baer PN. The case for periodontosis as a clinical entity. J Periodontol 1971: 42: 516-520.  Nutalapati R, Kasagani SK, Jampani ND, Mutthineni RB, Chintala S, Kode VS. Comparative evaluation of amoxicillin plus metronidazole and doxycycline alone in the nonsurgical treatment of localized aggressive periodontitis . Indian J Oral Sci 2014;5:112-8  Lang LP and Carring T. Aggressive periodontitis In: Lindhe’s Clinical periodontology and implant dentistry. Elsevier 5:438-460.
  • 97.  Saroch N. Periodontitis In: Periobasics A textbook of Periodontitis and implantology.2;2019:339-363.  Alpan AL. Aggressive Periodontitis In: Periodontology and Dental implantology. 2018;103-129.  Teughels W, Dhondt R, Dekeyser C & Quirynen M. Treatment of aggressive periodontitis Periodontology 2000; 2014, 65:107–133.  Gottlieb B. The formation of the pocket: diffuse atrophy of alveolar bone. J Am Dent Assoc;1998,15:462–476.

Editor's Notes

  1. In some cases the progression of disease slows down when the individual is in 20`s called as “burnout” (Post Juvenile Periodontitis).
  2. Segregatn include the mode of inheritance of a genetic trait but does not provide information about the specific gene invovled. Chromosome location of a gene of major effect for a trait such as agp determined by linkage analysis
  3. Hla plays an important role in regulating immune response
  4. PCR