This presentation explains the various controversies in different topics in periodontics. Discusses the controversies in Classification of periodontal diseases,
Diagnosis of periodontal diseases,
Prognosis,
Tooth mobility & splinting,
Gingival curettage one stage full-mouth disinfection versus quadrant SRP,
Systemic antimicrobials in periodontal therapy, Non-surgical versus surgical periodontal therapy,
Postsurgical antimicrobial medication,
Periodontal pack,
Periodontal-endodontic relationship,
Periodontal and systemic diseases,
Implant therapy in periodontally compromised patients.
Role of genetics in periodontal diseasesAnushri Gupta
Terminologies in Genetics
Genetic study design
genetic syndrome and disease associated with periodontal diseases, heretibility of periodontal disease, gene library, gene therapy
Local drug delivery is simple to use and may conceivably in the future be delivered by the patients themselves, hence can be used as an adjunct to mechanical plaque removal.
Rationale for use of antibiotics after periodontal surgery Vidya Vishnu
It is important that the dental profession diligently consider its responsibility to curb the use of unnecessary antibiotics and keep antibiotic efficacy high for when they are truly necessary. Use of antibiotics should not be generalized or used blindly just to be extra cautious in preventing infection.
Bruxism and its effect on periodontiumRamya Ganesh
Bruxism/teeth grinding is a common habit seen among pediatric patients and in older patients with relation to improper occlusion. This habit can cause extreme damage to facial muscles and TMJ. Various treatment options are available including botox injections. Hence as a dentist it is our duty to restore patient's oral health in harmony with other oro facial structures.
Host microbial interaction in periodontal diseaseAnushri Gupta
Bacterial Evasion of Host Defense Mechanisms
Immunological Aspects of Microbial Host Interaction
Connective Tissue Alterations:Tissue Destruction in Periodontitis
BONE RESORPTION
Role of genetics in periodontal diseasesAnushri Gupta
Terminologies in Genetics
Genetic study design
genetic syndrome and disease associated with periodontal diseases, heretibility of periodontal disease, gene library, gene therapy
Local drug delivery is simple to use and may conceivably in the future be delivered by the patients themselves, hence can be used as an adjunct to mechanical plaque removal.
Rationale for use of antibiotics after periodontal surgery Vidya Vishnu
It is important that the dental profession diligently consider its responsibility to curb the use of unnecessary antibiotics and keep antibiotic efficacy high for when they are truly necessary. Use of antibiotics should not be generalized or used blindly just to be extra cautious in preventing infection.
Bruxism and its effect on periodontiumRamya Ganesh
Bruxism/teeth grinding is a common habit seen among pediatric patients and in older patients with relation to improper occlusion. This habit can cause extreme damage to facial muscles and TMJ. Various treatment options are available including botox injections. Hence as a dentist it is our duty to restore patient's oral health in harmony with other oro facial structures.
Host microbial interaction in periodontal diseaseAnushri Gupta
Bacterial Evasion of Host Defense Mechanisms
Immunological Aspects of Microbial Host Interaction
Connective Tissue Alterations:Tissue Destruction in Periodontitis
BONE RESORPTION
68.Dr. Afreen Kauser; Dr. Rahul VC Tiwari; Dr. Ankita Khandelwal; Dr. Heena Tiwari; Dr. Sourabh Ramesh Joshi; Dr. Fawaz Abdul Hamid Baig; Dr. Anil Managutti. "Preference Of Orthodontic Treatment Versus Orthognathic Surgery In Class Iii Malocclusion Cases: A Research Survey". European Journal of Molecular & Clinical Medicine, 8, 1, 2021, 1271-1276.
Surgical v/s Non surgical periodontal therapy Achi Joshi
Both surgical and nonsurgical therapy produced improvement in the periodontal health.
Treatment approach was based on the comfort level of the practitioner.
In the late 60’s and continuing into the 70’s and 80’s, many series of longitudinal studies were conducted, aimed to document the immediate and most importantly long term clinical results following several types of periodontal therapy.
Nursing Evidence Based Practice PPT for BSN Nurses.
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Local Treatment in Periodontal pocket Journal PresentationDr. B.V.Parvathy
It was a systematic review and network meta-analysis aimed to evaluate the efficacy of adjunctive locally delivered antimicrobials, compared to sub gingival instrumentation alone or plus a placebo, on changes in probing pocket depth (PPD) and clinical attachment level (CAL), in patients with residual pockets during supportive periodontal care.
This presentation focusses on definition, history, goals and objectives of SPT, patient compliance, ways to improve patient's compliance, parts of SPT, SPT in daily practice, classification of post treatment patients, AAP Guidelines for periodontist and dentist and studies related to SPT.
Harshitha B, Subhada B, Mustafa M, Solanki H, Safiya NA, Tiwari RV. DNA laddering to evaluate cytogenetic damage in patients with periodontitis. J Int Soc Prevent Communit Dent 2019;9:486-91.
Slides from the presentation on extrapolation from progression free survival to overall survival in oncology given at the 2017 HTAi Annual Meeting in Rome
This seminar explains various periodontal risk assessment tools at subject, tooth and site level risk assessment. Also, SPT with adjunct use of antimicrobials by professional and to be used by personals. Maintenance care for the implant patients has also been described with different conditions. The role played by dentist and by patient is being explained in flowcharts. And at last complications during SPT is described with references.
This presentation describes the occlusion evaluation, its role in periodontal disease and occlusal therapy. Various diagnostic options and treatment options opted for occlusal correction.
This presentation describes the gingival recession, its classifications and theories of pathogenesis and different etiological factors in its progression.
This presentation describes the Effect of smoking on response to periodontal therapy
1. Non surgical periodontal therapy 2. Antimicrobial therapy
3. Conventional surgical therapy 4. Regenerative procedures
5. Mucogingival surgeries
This presentation describes the histology of different types of epithelium, junctional epithelium and its microscopic features and all the histological features of gingiva.
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These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
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TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
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Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
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Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
6. 1. Which classification system best suits us?
2. Are the systems available reproducible?
3. Are all these systems based mainly on clinicians experience?
1.
6
9. o How can the rate of progression be
estimated in a single visit?
o How do all the risk factors be
correlated with the amount of
destruction?
o With conventional diagnostic
techniques in everyday practice how
can the microbial & immunologic
status established?
• With the improved knowledge classification
systems have tried to be more
comprehensive.
• With the present chair side diagnostic
methods available it is impossible to
accurately determine the rate of destruction
,role of specific microorganisms &
immunologic background.
• A certain degree of overlap, confusion is
inevitable in border line cases.
9
10. How good are the conventional diagnostic methods?
Are the indices employed useful in clinical practice?
Can the etiological factors established consistently?
2.
10
11. The current diagnostic methods does rely too
much on historical/past events.
The current conventional diagnostic methods
despite several drawbacks are still relevant.
With the current diagnostic methods
factors cannot always be established
In many situations such as trauma from
occlusion, environmental risk factors, the
effect can not be established accurately.
11
12. With the current understanding of
disease process, can periodontal
disease prognosis be determined
accurately?
Do we have an evidence based
model to determine
prognosis?
Should prognosis be
determined in initial
examination?
3.
12
13. The complexity of
periodontal pathology
and the incomplete
understanding of the
same precludes the
clinician in
determining the
prognosis accurately.
Few systematic reviews &
meta analysis lead us to
believe that prognosis
prediction is accurate only
when the extremities are
considered viz very good, or
hopeless
At present we do not have
an evidence based model to
assist in the determination
of prognosis.
13
14. Prognosis of the
entire dentition
is not equivalent
to the sum total
of the prognosis
of individual
teeth.
Current evidence
does not
provide a basis
for assigning
prognostic
categories on
the basis of race.
Not enough is
known whether
there is any
difference in the
prognosis
between males
and females.
Except Diabetes
Mellitus and
HIV/AIDS, there
is not enough
evidence to
relate systemic
conditions with
periodontal
prognosis.
No conclusive
evidence to
show that
prognosis is
poor in
stressed
individuals
14
15. • Conflicting data
reported in various
studies precludes
the clinician in
making an accurate
determination of
prognosis except in
well-defined cases.
• Prognosis
determinatio
n should not
be rigid &
should be
reviewed
following
successive
stages of
treatment.
15
17. SRP alone produces results that are clinically equivalent
to curettage + SRP
17
18. Does tooth
mobility
indicate poor
prognosis?
Are mobile
teeth more
prone for
periodontal
breakdown?
Should all
mobile
teeth be
splinted?Is the
therapeutic
outcome
different
between
mobile & non
5.
18
19. 19
• 1 • 2 • 3
Possibility of
bone repair in
presence of
active mobility if
infection &
inflammation are
controlled .
(Polson et al.
1983)
Increased
bone loss
over a
period of 10
years
(Nieri et al.
2002)
4
Poorer healing
response after
periodontal Rx
compared to
firm teeth
(Fleszar et al.
1980)
Less favorable
results after
regenerative
surgical therapy
(Cortellini et al.
2001)
20. Rosling et al. 1976
Same degree of bone fill in infrabony defects
adjacent to mobile & firm teeth
Klinge et al. 1985
No difference in healing between splinted &
mobile teeth following Rx of furcation defects by
GTR
20
21. o Non progressive tooth mobility does not always indicate poor prognosis.
o Better to have firm teeth while planning regenerative procedures.
o Provisional splinting.. to facilitate instrumentation.
21
22. Is full mouth disinfection significantly superior to
the standard quadrant SRP?
CONTROVERSIES
6.
22
23. Advantages of full mouth disinfection
More efficient use of treatment time
Reduced number of treatment visits
Reduced cost of therapy
Improved clinical and microbiological results
23
24. CLINICAL OUTCOMES
When FMDT was compared to quadrant SRP, the largest PD
reductions and gains in CAL occurred at ≥ 7 mm deep pockets
(Quirynen et al. 1995
Vandekerckhove et al. 1996
Mongardini et al. 1999
24
25. Reasons for conflicting results from studies
Effectiveness
of SRP
Point when measurements were assessed
( (i.e., before or after root planing)
Severity of disease in study
populations
25
26. Lack of convincing evidence to support that FMDT approach
superior to traditional quadrant-wise therapy.
Less time-consuming, yet equally efficacious clinically as the
standard quadrant SRP.
(Koshy et al. 2005, Wennstrom et al. 2005)
Determine time availability, clinical workload & patient preference
while selecting Rx modality.
26
27. Are the results of non surgical & surgical approaches
comparable?
Are the results obtained following surgery maintainable?
Does surgery actually prolong the life of the dentition?
7.
27
28. Effects of non surgical therapy-
o SRP - - reduce the amount of bacterial plaque & calculus attached to subgingival root
surface
o Total elimination of all bacteria & calculus from subgingival tooth surface is not possible
with any instrumentation techniques
o (Anderson et al. 1996
o Caffesse et al. 1986
Yukna et al. 1997)
28
29. PPD % of root surface still
covered with remnants
of plaque or calculus
after instrumentation
≤ 3 mm 4 - 43%
4–6 mm 15 - 38%
> 6 mm 19 - 66%
29
30. PPD Results
≤ 3 mm OFD results in more CAL loss than SRP
4–6 mm OFD results in less CAL gain than SRP
> 6 mm OFD results in more CAL gain than SRP
POSITION
The selection of surgical or nonsurgical periodontal therapy
should be based on a careful consideration.
30
31. Controversies
Should local drug
delivery agents be
used alone or as
an adjunct to
scaling and root
planing?
Are they substantially
effective in
improvement of
clinical outcomes?
8.
31
34. Position
The existing data appear insufficient to conclude that adjunctive sustained or
controlled release LDA treatment can either reduce the need for surgery or improve
long-term tooth retention, or is cost effective.
Additional studies are needed to support the use of LDAs in special sites
34
35. o Root surface biomodification.
o Reconstructive procedures Vs. OFD alone
o Effective reconstructive procedure(s) for
treating periodontal intraosseous defects
o Histologically evidenced regeneration or
mere bone fill
o Patient-centered outcomes.
9.
35
36. Favor Root Surface Biomodification
o New connective tissue attachment following citric
acid demineralization in animals (Polson & Proye
1983, Crigger et al. 1978, Klinge et al. 1981)
o New connective tissue attachment & some
regeneration following citric acid demineralization
in humans(Albair et al. 1982; Kersten et al. 1992)
36
37. Do not Favor Root Surface Biomodification
o No improvement in clinical outcomes when citric acid used in conjunction with
surgical procedures ± osseous grafts or GTR (Handelsman et al. 1991, Moore et
al. 1987, Renvert et al. 1985)
o No clinical improvements following use of EDTA root conditioning (Blomlof et
al. 1996, 1997)
o Meta-analysis on Root Surface Biomodification
Use of citric acid, tetracycline, or EDTA to modify the root surface provides no
benefit of clinical significance to regeneration in patients with chronic periodontitis
(Mariotti 2003)
37
38. GTR
o No significant difference in CAL gain & PD reduction between bioabsorbable & non
resorbable membranes
o GTR = GTR + bone grafts in treating infrabony defects. (Murphy & Gunsolley 2003)
o Additional usage of bone graft in a well-contained infrabony defect during GTR
treatment may be unnecessary (Murphy & Gunsolley 2003)
o No available data on either long-term clinical outcomes or patient-centered
outcomes
38
39. New CT
attachme
nt
Long junctional
epithelium
Nabers
&
O’Leary
1965
Haggert
y &
Maeda
1971
Listgarten &
Rosenberg 1979
Moskow et al.
1979
Autogenous Bone grafts
o Bone fill of 1.2 mm in defects treated
with autogenous intraoral grafts and
greater CAL gain compared with OFD
(Renvert et al. 1985)
o Significantly greater CAL gain & bone
fill compared to OFD alone (Reynolds
et al. 2003)
Histologic evaluations
39
40. Bone Fill
(mm)
Authors
FDBA 1.3 to 2.6 Altiere et al. 1979
Blumenthal & Steinberg 1990
DFDBA 1.7 to 2.9 Mellonig 1984
Quintero et al. 1982
Allografts
Allografts are superior to OFD in terms of bone fill (Reynolds et al.
2003)
40
41. Alloplasts
Similar clinical results when compared to allografts (Barnett et al. 1989,
et al. 1989)
Limited regenerative potential & no signs of new cementum or PDL
formation. (Nevins et al. 2000)
Xenografts
Very little human clinical data to support use of xenografts for managing
periodontal defects (Mellonig 2000, Richardson et al. 1999)
41
42. New CT
attachment
No new CT attachment
Craig et
al. 2004
Parashis
et al.
2004
Parodi et al. 2000
Enamel Matrix Derivatives
o Inconsistent histologic evidence of regeneration
o Significant improvements in PD reductions &
radiographic bone fill than OFD alone (Scheyer
et al. 2002 Cardaropoli & Leonhardt 2002)
42
43. Root surface Biomodification
o Conflicting data in literature
o Favorable results not reproducible in humans
o Clinical value of this approach - - questionable
o No adverse effects of such treatment
GTR
o Superior to OFD in terms of CAL gain; PD reduction and
defect fill in treatment of deep infrabony defects
o GTR = GTR + Bone graft
43
44. Autografts & allografts
o Result in substantial bone fill
o Adequate clinical and histologic evidence of bone fill and periodontal
regeneration
o Recommended for treatment of infrabony defects
Alloplasts & xenografts
o Primarily function as biocompatible space fillers
o Produce clinical results similar to other bone replacement grafts or GTR
procedures
o Little or no regeneration of periodontal tissues 44
45. Combination of GTR and Grafts
o The combination of barrier membranes and grafting materials may result in
histological evidence of periodontal regeneration, predominantly bone repair.
o No additional benefits of combination treatments were detected in models of
wall infrabony, class 2 furcation or fenestration defects.
o In supra-alveolar and two wall infrabony (missing buccal wall) defect models of
periodontal regeneration the additional use of a grafting material gave superior
histological results of bone repair to barrier membranes alone { Sculean et al
EWP 2008 }
45
46. PERIODONTAL PLASTIC SURGERY
10
.
Controversies
o Is minimum zone of attached gingiva
mandatory?
o If found narrow, should the width of the
attached gingiva augmented necessarily?
o When orthodontic treatment is planned
should the augmentation be done prior to
or later?
o How predictable and sustainable are the
root coverage procedures?
Facts
o Inadequate” attached gingiva +
shallow vestibule favor subgingival
plaque accumulation & hinder oral
hygiene procedures (Friedman 1962,
Carranza & Carraro 1970, Corn 1962,
Rosenberg 1960)
o Thick marginal tissue prevent apical
progression of plaque-associated
periodontal lesions (Goldman 1951,
Ruben 1979)
o No requirement for a certain minimal
width of gingiva to maintain
periodontal health
46
47. o Even a narrow band of gingiva can withstand stress caused by
orthodontic forces (Coatoam et al. 1981)
o Significant gingival recession was observed after labial tooth movement
in monkeys (Batenhorst et al. 1974, Steiner et al. 1981)
o Difficulty to maintain proper plaque control due to presence of
appliances.
o If traumatic tooth brushing & plaque accumulation are etiological
factors, augmentation of keratinized gingiva is needed prior to 47
48. POSITION
o No need for augmentation of narrow attached
gingiva in patients practising optimal oral hygiene.
o Gingival augmentation is indicated for teeth selected
as abutments, requiring orthodontic corrections & at
implant sites.
o It is advisable to carry out gingival augmentation
prior to orthodontic treatment
48
49. o SCTG & CAF with or without GTR most predictable
procedures for root coverage at present
o The use of Connective Tissue Graft or EMD with a
coronally advanced flap procedure enhances the
probability to obtain complete root coverage.
o Connective tissue graft with a coronally advanced flap
shows greater keratinized tissue gain over coronally
advanced flap alone.
o Barrier membranes do not improve the clinical benefits of
coronally advanced flap in terms of complete root
coverage
o (Cairo et al EWP 2008)
49
50. Is it justifiable to
remove supporting
bone?
Is positive bone
architecture
important?
In the light of current
knowledge of
Periodontal
pathogenesis, is pocket
eradication mandatory?
11.
50
51. o The reducing probing depths, CAL,
margin locations & gingival contour
obtained in the immediate post healing
phase are not sustainable over time.
o If plaque control is attained & other
patient risk factors are controlled,
positive bone architecture is not
mandatory to maintain health.
o Pocket eradication is not very vital
provided standard SPT is available.
o Resective osseous surgery has limited
use in advance cases, intra-bony defects.
o However, the results after ROS are more
predictable.
While the short term results
after ROS are good the
procedure has limited
indication since the emphasis
currently is regeneration and
conservation of tissues.
51
52. LASERS IN PERIODONTAL THERAPY
• Is there greater
clinical effect of laser
application
compared with
mechanical
debridement in
nonsurgical
periodontal therapy
in patients with
chronic
periodontitis?
• Is the use of lasers
safe in routine
clinical practice?
12.
52
53. o GaAlA diode laser After 3
months of healing,
adjunctive laser treatment
resulted in a significantly
higher reduction in tooth
mobility, PD, and CAL.{
Kreisler et al 2005 }
o In particular, it was observed
that Er:YAG laser
monotherapy resulted in
significant improvements of
all the clinical and
microbiological parameters
Position
o Er:YAG laser application in
nonsurgical periodontal therapy
compared with mechanical
debridement resulted in similar
clinical outcomes.
o There is little evidence to support the
clinical application of either CO2,
Nd:YAG, Nd:YAP, or different diode
laser wavelengths.
53
54. CONTROVERSIES
o Does periodontal disease cause
pulpal necrosis?
o Does periodontal therapy cause
pulpal changes?
o Do severely periodontally involved
teeth with normal vitality
response, still require RCT as a
prophylactic measure?
o What is the effect of pulpless teeth
on periodontal tissues?
o Do endodontically treated teeth
respond differently to periodontal
therapeutic procedures?
o Can periodontal regenerative
techniques be attempted on
endodontically treated teeth?
13
.
54
55. FACTS
Effects of periodontal
disease on dental pulp:
- Possible pathways for
extension of periodontal
disease from pocket to the
pulp:
o Patent dentinal tubules
o Lateral canals
o Apical foramen or
foramina
o Only 2 out of 100 periodontally involved
teeth demonstrated lateral canals located in
a pocket.
o (Kirkham 1975)
o No or very few inflammatory cells in pulps of
resected / amputed roots from severely
periodontally involved teeth.
(Tagger & Smukler 1977
Haskell et al. 1980
55
56. Effects of endodontically involved
teeth on periodontal health and
healing:
-Negative effects of pulpless teeth
o Similarity of microbial flora
in root canals & deep
periodontal pockets
(A series of retrospective
studies by Jansson, Ehnevid,
Lindskog & Blomlof 1995,
1993)
o Gutta percha may trigger
macrophages to activate a bone-
resorptive system.
(Sjogren et al. 1998
Pascon et al. 1991
Tavares et al. 1994
Ricucci & Langeland 1998)
o In periodontitis patients, teeth
with endodontic treatment had
more bone loss as compared
with untreated contralaterals
(Timmerman & Van der Weijden
2006)
56
57. SYSTEMIC ANTIMICROBIALS IN
PERIODONTAL THERAPY
Controversies
Which periodontal conditions require systemic antimicrobials?
How severe does the periodontal infection have to be in order
to justify the use of an antimicrobial agent?
Should they be given to all individuals? If not, then who should
receive these agents?
14
.
57
58. oAdditional benefit of adjunctive
antimicrobials over SRP alone in
terms of CAL gain & PD
reduction, particularly at initially
deep periodontal pockets
(Herrera et al. 2002)
oAntibiotic provided significantly
better CAL gain of 0.3–0.4 mm
at 6 months post-therapy than
the comparison groups not
receiving antibiotic. (Haffajee et
o Valuable in the treatment of aggressive
periodontitis in adolescents, especially
cases predominated by A. a. comitans
(Slots & Schonfeld 1991)
o Antibiotics immediately after mechanical
debridement has proved to be more
beneficial than 3 / 6 months after
mechanical therapy
(Kaner et al. 2006)
58
60. POST SURGICAL
ANTIMICROBIAL
MEDICATION
Controversies
o Should antimicrobials be prescribed regularly in every case after
periodontal surgery?
o If antimicrobials are prescribed, then which one/combination?
oDo regenerative procedures benefit by antimicrobial medication?
15
.
60
61. Facts
o Reduced PO complications when
antibiotics given before
periodontal surgery & continued
for 4 to 7 days after surgery
(Ariaudo 1969;
Dal Pra & Strahan 1972;
Pendrill & Reddy 1980
o PO infection rates following
periodontal surgery without
antibiotics –
1 - 4.4% for routine periodontal
surgery
4.5% following implant surgery
(Gynther et al. 1998; Pack & Haber
1983;
Checchi et al. 1992)
61
62. oNot mandatory to prescribe antimicrobials in an
otherwise normal patient if proper aseptic &
infection control procedures have been followed
oLiterature data – Routine use of PO antibiotic
medication, whether indicated or not.
62
63. TO PACK OR NOT TO PACK :
THE CURRENT STATUS OF
PERIODONTAL DRESSINGS
Controversies
o Is it mandatory to use
periodontal dressings after
periodontal surgery?
o Which type of periodontal
dressings is most
commonly recommended?
o Are there any adverse
effects to use of
periodontal dressings?
o Are periodontal dressings
plaque retentive?
16
.
63
64. Clinical trials
in favour of
packing :
Ariaudo and Tyrell
et al
• Protection of wound from
mechanical trauma,
stability of the surgical site
during healing process
Prichard et al
• Patient comfort during
healing, good adaptation
to underlying gingival and
bony tissue, prevention of
postoperative
haemorrhage or
infection, decreasing tooth
64
66. Not mandatory to pack surgical sites in all
Complete healing can take place even without a
dressing, provided the surgical area is kept clean
There is no difference in healing between
dressed and nondressed wounds
The choice of use of a periodontal dressing is a
matter of individual preference and the
judgment of the operator.
66
68. Aldridge etal, 1995 No effect on change in HbA1c
Christgau etal, 1998 No effect on HbAtc
Grossi etal, 1996, 1997 Significant reproductions (P≤ .04) in
mean HbA1c at 3 months
Iwamoto etal, 2001 A significant Improvement of HbA1c
levels: reduction inTNF- 𝛼 levels;
decreased Fasting insulin levels and
HOMA-R in patients not receiving Insulin
68
69. Offenbacher et al. 2001 Moderate-severe periodontal
(PR = 1.6) and progressive disease
(PR = 2.4) are significant risk
for preterm delivery
Jeffcoat et al. 2001 Severe or generalized periodontal
disease is associated with preterm
delivery (OR – 4.5)
Lopez et al. 2002b Significant association between
periodontal disease and preterm LBW
(RR = 3.5)
Boggess et al. 2003 Significantly higher risk for pre-
eclampsia among women with severe
(OR = 2.4) or progressive (OR = 2.1)
periodontal disease
69
70. IMPLANT THERAPY IN PERIODONTALLY COMPROMISED
PATIENTS
Does a history of periodontitis have an effect on
the long-term prognosis of implants?
Immediate vs. delayed implants ??
Implants in systemic conditions ??
18.
70
71. Implants placed in partially edentulous
patients are more at risk for colonization
with periopathogens emerging from
periodontal pockets .
Significantly higher bone loss after insertion of
the final abutment in GAP patients as
compared to CP patients over 3 years.
71
72. Karoussis et al. 2003
Incidence of peri-implantitis
Periodontitis patients - - - 28.6% ;
Healthy patients - - - 5.8%
Hardt et al. 2002
Mean peri-implant bone loss of >2 mm
64% of periodontitis patients ; 24%
of healthy patients
Clinical success rate
Periodontitis patients - - - 52.4% ; Healthy
patients - - - 79.1%
Survival rate
Periodontitis patients - - - 90.5%; Healthy
patients - - - 96.5%
(Karoussis et al. 2003)
72
73. No statistically significant difference in the survival rates of implants in
individuals with periodontitis-associated and non periodontitis -associated
tooth loss over a period of 5 and 10 years. (Schou et al. 2006)
In diabetes mellitus –
Dubey RK et al. 2013 – 85.5 – 100% (good / fair metabolic control)
Ferriera SD et al 2006 – increased risk of peri implantitis
Tawil G et al. 2008 – 45 patients – 9.1% ; overall – 3.9% failure rate
Oates et al. 2013 – limited evidence on impact of poor metabolic control on
implant
Donos et al. – no evidence exists that states HIV as a contraindication for
implants 73
74. • No
contraindications
for implant
treatment in
periodontitis-
susceptible patients
Higher incidence of
peri-implantitis may
jeopardize longevity
of implant treatment
High survival rates for implants
in individuals with no H/o
periodontitis-associated tooth
loss
74
75. RECENT CONTROVERSY
• A/C researcher Shervin Molayem, DDS, a dental surgeon based on Los Angeles and
founder of the UCLA Dental Research Journal, the study suggests that COVID-19
patients with bad gums face a much greater risk of generating harmful IL-6 proteins that
spread to their lungs and trigger a life-threatening respiratory crisis.
• Plausible hypotheses supporting a potential bi-lateral link between periodontal diseases
and COVID-19 are encouraged to be tested.
75
77. Armitage GC. Classifying periodontal diseases - a long-standing
dilemma. Periodontology 2000 2002; 30: 9-23.
The American Academy of Periodontology statement regarding
gingival curettage. J Periodontol 2002; 73: 1229-1230.
Haffajee AD. Systemic antibiotics: to use or not to use in the
treatment of periodontal infections. That is the question. J Clin
Periodontol 2006; 33: 359-361
Seymour RA, Preshaw PM, Thomason JM, Ellis JS, Steele JG:
Cardiovascular diseases and periodontology. J Clin Periodontol
2003; 30: 279-292.
Greenstein G. Full mouth therapy versus individual quadrant root
planing: a critical commentary. J Periodontol 2002; 73: 797-812
Apatzidou DA. One stage full-mouth disinfection-treatment of
choice? J Clin Periodontol 2006; 33: 942-943. 77
Controversy is a state of prolonged public dispute or debate, usually concerning a matter of conflicting opinion or point of view. The word was coined from the Latin controversia, as a composite of controversus – "turned in an opposite direction". In periodontology some important topic have some controversies The reason of controversy on a particular topic may be related to inadequate knowledge of the etiological factors, technical difficulties, and patient related factor effecting the treatment outcomes or some unknown factors.
The way of periodontal concept is indeed advanced how it had been in the past. We now have a better understanding of the etiological factors associated with periodontitis, the mechanism involved in periodontal wound healing and inter relationship between patients factors (such as smoking and diabetes) and treatment outcomes. However some controversies related to periodontology do exist. The reason of controversy on a particular topic may be related to inadequate knowledge of the etiological factors, technical difficulties, and patient related factor affecting the treatment outcomes or some unknown factors.
…..In reviewing past and present concepts and treatment modalities that are available, it becomes evident that there are no completely accepted principles and techniques.
We now have a better understanding of the etiological factors associated with periodontitis, the mechanism involved in periodontal wound healing and inter relationship between patients factors and treatment outcomes. However some controversies related to periodontology do exist.
The reason of controversy on a particular topic may be related to inadequate knowledge and understanding of the etiological factors, technical difficulties, over dependence on historical data, and patient related factor effecting the treatment outcomes, lack of well controlled, high standard CT, or some unknown factors.
Which classification system best suits us?
Are the systems available reproducible?
Are all these systems based mainly on clinicians experience?
Over time, thoughts that
guided the classification of periodontal diseases can
be placed into three dominant paradigms primarily
based on the clinical features of the diseases
(1870–1920), the concepts of classical pathology
(1920–1970), and the infectious etiology of the diseases
(1970–present). Classification systems in the
modern era represent a blend of all three paradigms
since there is a certain amount of validity to some of
the earliest thoughts about the nature of periodontal
diseases
For the period from approximately 1870 to 1920 very
little was known about the etiology and pathogenesis
of periodontal diseases. Accordingly, the diseases
were classified almost entirely on the basis of their
clinical characteristics supplemented by unsubstantiated
theories about their cause.
Most authors considered these diseases
to be primarily caused by local factors (16, 53,
93, 111, 112, 125, 127, 136, 149), whereas some believed
that systemic disturbances played a dominant
etiological role
Indeed, John M.
Riggs(1811–1875), an American dentist who lectured
so widely on the treatment of periodontal diseases
that periodontitis was called ‘Riggs’ disease’
Classical pathology paradigm
(1920–1970)- What emerged from this debate
was the concept that there were at least two forms
of destructive periodontal disease inflammatory and
noninflammatory (‘degenerative’ or ‘dystrophic’).
Although most classification systems published from
approximately 1920 to 1970 included a degenerative
disease category (24, 34, 37, 39, 40, 48, 58, 80, 128, 129,
139, 144), at the 1966WorldWorkshop in Periodontics
serious questions were raised about the existence of
‘periodontosis’ as a distinct disease entity
Since it is probable that
essentially all dentists and periodontists in the world
are convinced that most periodontal diseases are infections,
it is unlikely that the Infection/Host Response
paradigm will be replaced in the near future.
It is highly likely that current disease designations,
such as ‘Chronic Periodontitis’, are constellations of
polymicrobial and polygenic infections whose clinical
expression is profoundly altered by important
environmental and host-modifying conditions.
Gingival curettage is a surgical procedure designed to remove the soft tissue lining of the periodontal pocket with a curet, leaving only a gingival connective tissue lining. Gingival curettage is a distinct procedure that may be performed in conjunction with, or subsequent to, scaling and root planing (SRP) according to American academy of perio
The word curettage is used in periodontics to mean the scraping of the gingival wall of a periodontal pocket to separate diseased soft tissue
the procedure by which changes in the alveolar bone can be accomplished to rid it of deformities induced by the periodontal disease or other related factors, such as exostoses .
Steps- vertical grooving, radicular blending, flattening of interproximal bone, gradulizing of marginal bone.
When the crest of the interdental gingiva or bone is located coronal to its midfacial and midlingual margins.
When the radicular bone is apical to the interdental bone.
No significant effect of advanced periodontal disease on pulpal conditions
(Ross & Thompson 1978
Bergenholtz & Nyman 1984
Jaoui et al. 1995)
Need for RCT of periodontally involved teeth only when periodontal disease progress to involve the root apices.
Not mandatory to prescribe antimicrobials in an otherwise normal patient if proper aseptic & infection control procedures have been followed
Literature data – Routine use of PO antibiotic medication, whether indicated or not.
Wikesjo et al
Prevention of flap displacement in apically repositioned flaps, additional support in free gingival grafting procedures
Sigusch et al
Periodontal wound dressing has a positive effect on clinical long-term results
Clinical trials NOT in favour of packing :
Stahl et al
Dressing accumulates plaque
Greensmith et al
No differences in healing
Kidd and Wade et al
Greater pain experience, Plaque accumulation, Subsequent microbial invasion, Nonpack areas showed better wound healing.
In the last 50 years there have been many technological advances in the methods used for the clinical examination of periodontal tissues. We now have a better understanding of the etiological factors associated with periodontitis, the mechanism involved in periodontal wound healing and inter relationship between patients factors (such as smoking and diabetes) and treatment outcomes.
So in near future we can expect that current controversial topic will get general agreement. However it is also possible that new controversial topic may come.