The document discusses salivary glands and saliva. It defines salivary glands as exocrine glands that secrete saliva. It classifies salivary glands into major and minor glands and describes the anatomy and histology of the parotid, submandibular, and sublingual glands. It also outlines the composition of saliva, including water, electrolytes, enzymes, proteins, and other components. Saliva serves important functions like lubrication, digestion, and maintenance of oral health.
This Presentation includes systematic compilation of the anatomy, physiology, biochemistry and pathology related to saliva and salivary glands. it also mentions about the role of saliva in dentistry. Any additions or mistakes are welcome!
Please do leave your comments and let me know if the presentations has helped you!
The presentation is available on request. Mail me at apurvathampi@gmail.com
Definition
Classification Of Salivary Glands
Anatomy of salivary glands
Development of salivary glands
Structure Of Salivary Glands
Histology of major and minor salivary glands
This Presentation includes systematic compilation of the anatomy, physiology, biochemistry and pathology related to saliva and salivary glands. it also mentions about the role of saliva in dentistry. Any additions or mistakes are welcome!
Please do leave your comments and let me know if the presentations has helped you!
The presentation is available on request. Mail me at apurvathampi@gmail.com
Definition
Classification Of Salivary Glands
Anatomy of salivary glands
Development of salivary glands
Structure Of Salivary Glands
Histology of major and minor salivary glands
Coronal and radicular pulp
Apical foramen
Accessory canal
Functions of dental pulp
Components of dental pulp
Functions of pulpal extracellular matrix
Organization of cells in the pulp
The principle cells of the pulp
The pathways of collagen synthesis
Matrix and ground substances
Vasculature and lymphatic supply
Innervation of Dentin- pulp complex
Disorders of the dental pulp
Advances in pulp vitality testing
https://userupload.net/3ppacneii1wj
Toxicologic Pathology (Second Edition), 2010
INTRODUCTION
The oral mucosa is, in many ways, similar to the skin in its architecture, function, and reaction patterns. This section only emphasizes those characteristics of the oral mucosa that influence or result in a distinct group of pathologic entities.
Because of its location at the entrance of the digestive and respiratory tracts and its proximity to the teeth, the oral mucosa is subjected to numerous natural and man-made xenobiotics. The peculiar architecture and absorption characteristics of the oral mucosa, especially in areas of extreme thinness, coupled with the rich microorganism flora of the mouth, makes the oral mucosa a peculiar site deserving separate discussion.
Coronal and radicular pulp
Apical foramen
Accessory canal
Functions of dental pulp
Components of dental pulp
Functions of pulpal extracellular matrix
Organization of cells in the pulp
The principle cells of the pulp
The pathways of collagen synthesis
Matrix and ground substances
Vasculature and lymphatic supply
Innervation of Dentin- pulp complex
Disorders of the dental pulp
Advances in pulp vitality testing
https://userupload.net/3ppacneii1wj
Toxicologic Pathology (Second Edition), 2010
INTRODUCTION
The oral mucosa is, in many ways, similar to the skin in its architecture, function, and reaction patterns. This section only emphasizes those characteristics of the oral mucosa that influence or result in a distinct group of pathologic entities.
Because of its location at the entrance of the digestive and respiratory tracts and its proximity to the teeth, the oral mucosa is subjected to numerous natural and man-made xenobiotics. The peculiar architecture and absorption characteristics of the oral mucosa, especially in areas of extreme thinness, coupled with the rich microorganism flora of the mouth, makes the oral mucosa a peculiar site deserving separate discussion.
Here saliva as a diagnostic biomarker has been explained via this powerpoint . extraction of saliva and diagnostic equipments and techniques are explained here by Dr Harshavardhan Patwal
PHYSIOLOGY OF SALIVA AND ITS SIGNIFICANCE IN PROSTHODONTICS.pptxBaishali Ghosh
EMBRYOLOGY
ANATOMY
HISTOLOGY
MECHANISM OF SALIVARY SECRETION
CONTROL OF SALIVARY SECRETIONS
COMPOSITION
FUNCTION OF SALIVA
SALIVA AS DIAGNOSTIC TOOL
SIALORRHEA
XEROSTOMIA
RETENTION IN COMPLETE DENTURE
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INTRODUCTION
DEFINITION
EMBRYOLOGY/DEVEOLPMENT
HISTOLOGY OF SALIVARY GLANDS
CLASSIFICATION OF SALIVARY GALNDS
ANATOMY OF SALIVARY GLANDS
AGE CHANGES
CLINICAL CONSIDERATION
CONCLUSION
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
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...i3 Health
i3 Health is pleased to make the speaker slides from this activity available for use as a non-accredited self-study or teaching resource.
This slide deck presented by Dr. Kami Maddocks, Professor-Clinical in the Division of Hematology and
Associate Division Director for Ambulatory Operations
The Ohio State University Comprehensive Cancer Center, will provide insight into new directions in targeted therapeutic approaches for older adults with mantle cell lymphoma.
STATEMENT OF NEED
Mantle cell lymphoma (MCL) is a rare, aggressive B-cell non-Hodgkin lymphoma (NHL) accounting for 5% to 7% of all lymphomas. Its prognosis ranges from indolent disease that does not require treatment for years to very aggressive disease, which is associated with poor survival (Silkenstedt et al, 2021). Typically, MCL is diagnosed at advanced stage and in older patients who cannot tolerate intensive therapy (NCCN, 2022). Although recent advances have slightly increased remission rates, recurrence and relapse remain very common, leading to a median overall survival between 3 and 6 years (LLS, 2021). Though there are several effective options, progress is still needed towards establishing an accepted frontline approach for MCL (Castellino et al, 2022). Treatment selection and management of MCL are complicated by the heterogeneity of prognosis, advanced age and comorbidities of patients, and lack of an established standard approach for treatment, making it vital that clinicians be familiar with the latest research and advances in this area. In this activity chaired by Michael Wang, MD, Professor in the Department of Lymphoma & Myeloma at MD Anderson Cancer Center, expert faculty will discuss prognostic factors informing treatment, the promising results of recent trials in new therapeutic approaches, and the implications of treatment resistance in therapeutic selection for MCL.
Target Audience
Hematology/oncology fellows, attending faculty, and other health care professionals involved in the treatment of patients with mantle cell lymphoma (MCL).
Learning Objectives
1.) Identify clinical and biological prognostic factors that can guide treatment decision making for older adults with MCL
2.) Evaluate emerging data on targeted therapeutic approaches for treatment-naive and relapsed/refractory MCL and their applicability to older adults
3.) Assess mechanisms of resistance to targeted therapies for MCL and their implications for treatment selection
Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
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
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
The prostate is an exocrine gland of the male mammalian reproductive system
It is a walnut-sized gland that forms part of the male reproductive system and is located in front of the rectum and just below the urinary bladder
Function is to store and secrete a clear, slightly alkaline fluid that constitutes 10-30% of the volume of the seminal fluid that along with the spermatozoa, constitutes semen
A healthy human prostate measures (4cm-vertical, by 3cm-horizontal, 2cm ant-post ).
It surrounds the urethra just below the urinary bladder. It has anterior, median, posterior and two lateral lobes
It’s work is regulated by androgens which are responsible for male sex characteristics
Generalised disease of the prostate due to hormonal derangement which leads to non malignant enlargement of the gland (increase in the number of epithelial cells and stromal tissue)to cause compression of the urethra leading to symptoms (LUTS
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
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
6. EMBRYOLOGY
Time of origin
Gland Location Intra uterine life
Parotid gland Corners of the stomodeum as placode 6th week I.U
Submandibular gland Floor of the mouth End of 6th week I.U
Sublingual gland Lateral to S.m.primordium 8th week I.U
Minor salivary glands Buccal Epithelium 12th week I.U
Maturity of secretory end piece: During last 2 months of gestation.
David T. Wong Salivary Diagnostics, Wiley-Blackwell
8. DEVELOPMENT
BUD FORMATION CORD FORMATION
BRANCHING OF
CORDS
LOBULE FORMATIONCANALIZATION
CYTODIFFERENTIATION
(Orbans Oral Histology & Embryology, 13th edtn)
STAGES OF DEVELOPMENT-
•BUD FORMATION
•CORD FORMATION
•BRANCHING OF CORDS
•LOBULE FORMATION
•CANALIZATION
•CYTODIFFERENTIATION
9. PAROTID GLAND
Parotid gland:
-Largest salivary gland
-20-25% of total saliva.
-Pyramidal in shape.
-Weighs around 20-30g.
-Superficial portion of gland is located subcutaneously, in front of the external
ear & deeper portion lies behind ramus of mandible.
-4 surfaces: superior, superficial, anteromedial, posteromedial
-3 borders- anterior, medial, posterior
-Associated with facial nerve (pes anserinus)
10. Stenson’s duct:
-35- 40mm long
Runs forward across masseter
muscle, turns inwards at the
anterior border of masseter
Runs through the 3Bs-
Buccal pad of fat
Buccopharyngeal fascia
Buccinator Muscle
- opens at a papilla opposite the
second maxillary molar.
12. Nerve supply: Greater auricular and Auriculotemporal nerve
Sympathetic-
From the sympathetic plexus
around the external carotid artery
Parasympathetic
13. SUBMANDIBULAR GLAND
10 to 15 gm. Size of a Walnut
65-70% of total saliva.
Located at Posterior portion of floor of mouth, medial aspect of mandible & wrapping
around posterior border of mylohyoid.
3 surfaces-Inferior, Medial, Lateral
The post. Border of
mylohyoid divides the
gland:
Superficial lobe : situated in the digastric
triangle wedged between body of
mandible and mylohyoid
Small deep lobe: lying in the floor of the
mouth between mylohyoid and the
hyoglossus muscle on the lateral aspect of
the tongue
15. SUBMANDIBULAR DUCT
•Wharton's duct runs forward and opens into the mouth beneath the tongue,
lateral to lingual frenum i.e sublingual caruncle.
•40mm
16. Blood supply: Facial and lingual
arteries. Veins correspond to
arteries, drain into internal
Jugular Vein
Lymphatic drainage:
Submandibular lymph node &
jugulodigastric nodes.
Nerve supply:
•Parasympathetic supply: Facial
nerve reaching gland through the
lingual nerve & submandibular
ganglion.
• Sympathetic
Supply:Postganglionic fibers from
plexus on facial artery
17. SUBLINGUAL GLAND
Smallest major salivary gland
Weighs- 2gm.
2.5% of total saliva.
Located at anterior part of floor of
the mouth, just between mucosa &
mylohyoid muscle.
Saliva is poured into a series of small
ducts (duct of Rivinus) and open
through large duct- Bartholin’s duct,
that opens with submandibular duct
at the caruncula sublingualis.
Essentials of Medical Physiology, Sembulingam 4th Edition
18. Blood supply: Sublingual & submental arteries.
Lymphatic drainage: Submental lymph nodes
Nerve supply:
Parasympathetic supply: Facial nerve reaching gland
through the lingual nerve & submandibular ganglion.
Sympathetic Supply:
-Postganglionic fibers from plexus on facial artery.
19. MINOR SALIVARY GLANDS
Labial and buccal glands- Lips and cheek
Glossopalatine- isthmus in glossopalatine fold
Palatine glands- lamina propria of the posterolateral region of hard palate
submucosa of the soft palate and the uvula
Lingual–
•Anteriorlingual GLANDS OF BLANDIN AND NUHN -apex of the tongue
• Posterior Lingual (mucous)- lateral and posterior to the vallate papilla
• Posterior lingual( serous) VON EBNER’S GLANDS- between the muscle
fibers of the tongue below the vallate papilla.
24. MYOEPITHELIAL CELLS
BASKET CELLS
.
stellate or spider like cells
flattened nucleus
surrounded by -
•small amount of perinuclear
cytoplasm
•long branching process that
embracing the secretory duct
cells.
25.
26. CONNECTIVE TISSUE
•Same as connective tissue
in other parts of body
•Contain macrophages,
plasma cells, fibroblasts,
macrophages, mast cells
•Extension of connective
tissue into septa lobulates
the gland
27. serous salivary gland
serous acini, zymogen granules
intercalated ducts and striated
ducts
interlobular ducts with
stratified epithelium.
lobules with connective tissue
septa.
nearby lymph node with
capsule.
PAROTID GLAND HISTOLOGY
28. .mixed salivary gland
predominantly serous acini;
some mucous acini with
serous demilunes
short intercalated ducts.
striated ducts with simple
cuboidal lining epithelium.
interlobular ducts with
stratified cuboidal or
stratified columnar
epithelium surrounded by
connective tissue.
PAROTID GLAND HISTOLOGYPAROTID GLAND HISTOLOGY
SUBMANDIBULAR GLAND HISTOLOGY
29. .mixed salivary gland
predominantly mucous acini; some
serous demilunes.
acini are composed of centrally-
located mucous cells and
peripheral serous demilunes.
short intercalated ducts.
striated ducts with simple
columnar lining epithelium
interlobular ducts with stratified
cuboidal/columnar epithelium,
surrounded by connective tissue.
SUBLINGUAL GLAND HISTOLOGY
30.
31. PHYSIOLOGICAL FACTORS AFFECTING SALIVATION
TASTE OF EATABLES
SURFACE OF OBJECT
DEHYDRATIONAGE
EMOTIONS AND
PSYCHOLOGICAL EFFECTS
INCREASED
SALIVATION
DECREASED
SALIVATION
Syllabus of Complete Dentures, Charles M. Heartwell and Arthur O. Rahn, 4th edtn
32. PHASE OF SALIVATION
• SMELLS
• VIEW
CEPHALIC
• TASTE
• TACTILE
BUCCAL
• IRRITATION
GASTROINTESTINAL
Syllabus of Complete Dentures, Charles M. Heartwell and Arthur O. Rahn, 4th edtn
33. FORMATION OF SALIVA
• TWO STAGE MODEL of saliva secretion
Physiology, Robert M. Berne and Matthew N. Levy, 3rd edth
37. DEGENERATIVE CONDITION- SJOGREN’S
SYNDROME
• A.k.a Gougerot Sjogren’s Syndrome/ Sicca Syndome
• It is an autoimmune disorder described as a triad of :
-Keratoconjuctivitis sicca
-Xerostomia
-Rheumatoid arthritis
Two types:
-Primary
-Secondary
Keratocon
junctivitis
sicca
Xerostomia
Rheumat
oid
arthritis
Sjogren’s
syndrome
38. Clinical freatures:
•Dry mouth and dry eyes
•Dry and fissured tongue
•Primary sjogren’s syndrome are
associated with parotid gland
enlargment, purpura,
lymphadenopathy.
Treatment:
1. Ocular lubricants and salivary
substitutes,
2. maintenance of oral hygiene
3. Frequent fluoride application,
4. sialogogues.
Fig- DRY AND FISSURED
TONGUE
39. SALIVARY GLAND IMAGING MODALITIES
1. PLAIN FILM RADIOGRAPHY
• OCCLUSAL VIEW
• ORTHOPANTOGRAPH
• LATERAL OBLIQUE
• POSTERIOR ANTERIOR SKULL
PROJECTION
2. SIALOGRAPHY
3. ULTRASONOGRAPHY
4. SCINTIGRAPHY
5. COMPUTED TOMOGRAPHY
6. MAGNETIC RESONANCE IMAGING
Fig:- MANDIBULAR OCCLUAL
VIEW OF A CALCIFIED STONE IN
THE WHARTON’S DUCT
41. SIALOGRAPHY
• Retrograde injection of a iodinated
contrast agent into the ductal system
of a salivary gland.
• Oldest imaging modality.
• First sialogram performed by CARPY
1904 on an isolated parotid using
mercury as a contrast agent.
• Simple, quick and painless procedure
AMAMENTARIUM
Sialography catheters
Lacrimal probes
Iodinated contrast agent
Cotton rolls
Maxillofacial Imaging, Angelo. M DelBalso
45. INTRODUCTION
Saliva is a viscous, transparent liquid
secreted by cells of the salivary
glands.
Salivary flow facilitates-
1. Speech
2. Mastication
3. Food Bolus Formation And Its
Swallowing
4. General Oral Health And
Function.
It plays a critical role in retention of
dentures due to its lubricating
function and, thus, dry mucosa
often leads to compromise in the
retention of prosthesis.
46. DEFINITION
“Saliva is clean, tasteless, odourless, slightly acidic viscous fluid,
consisting of secretions from the parotid, sublingual,
submandibular salivary glands and the mucous glands of the
oral cavity.” - Stedmans medical dictionary 26th edition
• Saliva is a clear, alkaline, somewhat viscid secretion from the
parotid, submandibular, sublingual & smaller mucous glands
of the mouth. – Dorland Medical dictionary
• Saliva is a complex fluid produced by the salivary glands , the
most important function of which is to maintain the well
being of the oral cavity . – Tencate’s Book of Oral Histology
53. PROPERTIES
• Total amount : 1,200 – 1500 ml in 24 hrs. A large
proportion of this volume is secreted at meal time, when
the secretory rate is highest.
• Consistency : slightly cloudy, due to presence of cells
and mucin.
• pH : usually slightly acidic (ph 6.35 – 6.85)
• Specific gravity : 1.002 – 1.012
• Freezing point : 0.07 – 0.340c.
54. Total volume secreted 1200ml to 1500ml/day
PAROTID GLAND
SUBLINGUAL GLAND MINOR GLANDS
SUBMANDIBULAR
GLAND
20%
7- 8% <10%
65-70%
Saliva composition and functions: A comprehensive Review, The Journal of Contemporary
Dental Practice vol(9),no 3,2008
55. FACTORS AFFECTING COMPOSITION OF SALIVA
Time of the day
Source of secretion
Pathology
Flow rate
Differential gland contribution
Circadian rhythm
Nature of stimuli
Diet and hydration
David T. Wong Salivary Diagnostics, Wiley-Blackwell
56. SALIVA: A DIAGNOSTIC TOOL
SALIVA
BACTERIA
VIRUSES
NEOPLASTIC
CONDITIONS
SYSTEMIC
DISEASE
BIOMARKERS
DRUG ABUSE
CONDITIONS
David T. Wong Salivary Diagnostics, Wiley-Blackwell
57. Salivary testing is becoming more common as clinicians have begun to
appreciate its advantages & investigators defined its worth. Saliva proves
to be a reflection of the body.
SYSTEMIC DISEASES-
• HEREDITARY DISEASES- CYSTIC FIBROSIS
• AUTOIMMUNE DISEASES- SJOGREN’S SYNDROME
• MALIGNANCIES- ADENOCARCINOMA, BREAST CARCINOMA,
OVARIAN CANCER (MARKERS)
VIRAL INFECTION MARKERS-
• HIV
• OTHER VIRAL DISEASES (due to immunoglobulins present in saliva)
SALIVA AS A DIAGNOSTIC TOOL
58. DRUG MONITORING-
• THERAPEUTIC- Carbamazepine, Diazepam, Ethosuximide,
Lithium, Tolbutamide, etc
• RECREATIONAL- Nicotine, Cocaine, Barbiturates,
Benzodiapines, Marijuana, etc
MONITORING OF HORMONE LEVELS
DIAGNOSIS OF ORAL CONDITIONS ASSOCIATED
WITH DEEPER SYSTEMIC CONDITIONS
59. • Forensic odontology- serological and cellular
analysis of saliva aids in identification of accused
-Saxena S, Kumar S. Saliva in forensic odontology: A comprehensive update. J Oral
Maxillofac Pathol [serial online] 2015 [cited 2016 Apr 24];19:263-5.
• Salivary pH assessment using telemetry:
Device called telemetry system is incorporated in the
denture which has a radiosensitive diode, oscillator, ph
sensor, and a computer analyzer
60. METHODS OF COLLECTION OF SALIVA
• Draining method- funnel placed near lip and
patient asked to expectorate saliva into the
funnel to collect in a pre-weighed test tube
• Spitting method- saliva allowed to
accumulate in the floor of the mouth and
then spat into a pre-weighed tube. For
stimulated saliva patient is asked to chew on
paraffin.
• Suction method- saliva is aspirated into a
pre-weighed container using a saliva ejector.
• Absorbent method- preweighed swab,
cotton roll, gauze sponge.
61.
62. • Adhesion
• Cohesion
• Surface Tension
• Capillary Attraction
• Atmospheric Pressure
• Viscosity of Saliva
62
ROLE OF SALIVA IN COMPLETE DENTURE RETENTION
63. Adhesion:
It is achieved through ionic forces between
charged salivary glycoproteins and surface
epithelium or acrylic resin.
According to Bernard Levin– the most
adhesive saliva is thin but containing some
mucous component
Cohesion:
It is a retentive force because it occurs within the
layer of fluid (saliva) that is present between the
denture base and the mucosa and works to
maintain the integrity of the interposed fluid.
64. Interfacial force/ Surface tension
• It is the resistance to separation of two
parallel surfaces that is imparted by a film of
liquid between them.
• It is dependent on the ability of the fluid to ‘
wet’ the rigid surrounding material
(WETTABILITY).
Capillary Action
• Capillarity is what causes a liquid to rise in
capillary tube
•
• When adaptation of denture base to mucosa
on which it rests is sufficiently close, the
space filled with thin film of saliva acts like
capillary tube in that liquid ,seeks to
increase contact with both denture and
mucosal surface.
65. Atmospheric pressure
•The cohesive forces result in the
formation of a concave meniscus at the
surface of the saliva in the border
region of the denture.
•When a fluid film is bounded by a
concave meniscus the pressure within
the fluid is less than that of the
surrounding medium;
•Thus a pressure differential will exist
between saliva film and air and thereby
aids in the retention of the denture
66. XEROSTOMIA AND HYPERSALIVATION
XEROSTOMIA
• Dry mouth/ pasties/ cotton mouth
• Hyposalivation or Aptyalism
Causes-
• Dehydration or Renal Failure
• Sjogren’s Syndrome
• Radiotherapy
• Trauma to Salivary gland or duct
• Drugs
• Smoking of marijuana/cannabis
• Shock
HYPERSALIVATION
• Excess saliva secretion
• Physiological- Pregnancy
• Pathological is called Ptyalism,
Sialorrhea, Sialosis
Causes-
• Decay of tooth or a neoplasm
• Disease of foregut, stomach or
intestine
• Cerebral Palsy
• Parkinsonism
DID YOU KNOW?
In ancient China, a suspect would be made to chew dry rice while being questioned.
When the suspect spat out the rice, they were assumed to be guilty if the grains
remained stuck to their tongue. The reason was that the stress caused slow saliva flow
and induced a dry mouth (activation of the sympathetic nervous system).
67. PROSTHODONTIC MANAGEMENT OF
PATIENT WITH XEROSTOMIA
In dry environment, fixed non
tissue bearing prosthesis are
preferred where indicated
FPDs should have full coverage
retainers and easily cleaned
pontics and connectors
Margins of retainers should be
supragingival
Health of residual teeth and
periodontal tissues
Use of gingivally approching
clasp avoided
Tooth supported denture with
minimal tissue coverage
Metal denture bases are
preferred
FIXED PARTIAL DENTURE
PROSTHESIS
REMOVABLE PARTIAL
DENTURE PROSTHESIS
68. Procedures -aim at optimizing
retention and stability
Use dentures with metal bases
Use of soft liners to improve
comfort
Use of denture adhesives to
augment retention
Frequent recall – As more prone
to candidal infections
COMPLETE DENTURE
PROSTHESIS
TREATMENT OPTIONS
•Use of sialogogues
•Saliva reservoirs
•Flexible dentures
70. Pattanaik B, Pattanaik S. Prosthetic rehabilitation of a xerostomia patient with a
mandibular split salivary reservoir denture. Annals and Essences of
dentistry 2010;3:32–5
SPLIT DENTURES
71. Mendoza AR, Tomlinson MJ. The split denture: a new technique for
artificial saliva reservoirs in mandibular dentures. Aust Dent
J 2003;48:190–4
72. Flexible dentures
Saliva substitutes are contraindicated in
• asthma
• iritis
• Glaucoma
limitations of the split dentures
• Require adequate vertical dimension
• Structure weakened
• repair and relining are difficult
• Too bulky
Flexible dentures-
• Long lasting
• do not warp or become brittle
• exhibit better accuracy
• softer material locks into the undercuts of the
ridges thereby adapting to the constant
movement
• Can retain a small percentage of water- more
compatibility and softer than acrylic
73. • Dental restorations are affected by saliva. They have ability to
dissolve silicates.
• Changes physical properties of various impression materials.
• Causes electro-galvanisation between silver and gold
discolors the restoration, causes pain.
• Hampers clinicians view and contaminates working area.
ISOLATION:
74. METHODS OF FLUID CONTROL
SALIVA EJECTORS RUBBER DAM
SVEDOPTER
ANTI-SIALOGOGUES RETRACTION CORDS GAUZE AND COTTON ROLLS
75. IMPLANTS
• Failure of Implants is seen due to microbiota
present in saliva.
• Bacterial species from human saliva may
penetrate along the implant-abutment
interface
76. • Essentials of Human Anatomy- Head and Neck, 4th Edition- A K Datta
• Orbans Oral Histology & Embryology, 14th Edition
• David T. Wong Salivary Diagnostics, Wiley-Blackwell
• Ten Cate’s Oral Histology, Development, Structure, and Function, Seventh Edition
• Oral Radiology Principles And Interpretation Sixth Edition,Stuart C. White and
Michael J. Pharoah
• Textbook of Oral Medicine, A.V.Ghom, Third Edition
• Physiology, Robert M. Berne and Matthew N. Levy, Third Edition
• Syllabus of Complete Dentures, Charles M. Heartwell and Arthur O. Rahn, Fourth
Edition
• A contemporary review of the factors involved in complete denture retention,
stability, and support. Part I: retention. Jacobson TE, Krol AJ. J Prosthet Dent. 1983
Jan;49(1):5-15.
REFERENCES
77. •Essentials Of Medical Physiology K. Sembulingam 4th Edition
•Syllabus of Complete Dentures, Charles M. Heartwell and Arthur O. Rahn, 4th
edtn
• Ten Cate’s Oral Histology, Development, Structure, and Function, Seventh
Edition
•Mendoza AR, Tomlinson MJ. The split denture: a new technique for artificial
saliva reservoirs in mandibular dentures. Aust Dent J 2003;48:190–4
•Pattanaik B, Pattanaik S. Prosthetic rehabilitation of a xerostomia patient with
a mandibular split salivary reservoir denture. Annals and Essences of
dentistry 2010;3:32–5
•Saliva composition and functions: A comprehensive Review, The Journal of
Contemporary Dental Practice vol(9),no 3,2008
•Kaufman E, Lamster IB. The diagnostic applications of saliva--a review. Crit Rev Oral Biol
Med. 2002;13(2):197-212.