01 November, 2008

3rd BDS Oral pathology



THIRD B.D.S. ORAL PATHOLOGY & MICROBIOLOGY – APRIL-2006


Part-A
1. Classify odontogenic tumours. Describe the pathogenesis, clinical features, radiological appearance and
histopathology of ameloblastoma=9m
2. Write short notes on: 4 x 4 =16m; a) Taurodontism b) Zones of incipient caries c) Pulp polyp
d) Trigeminal neuralgia
3. Write briefly on: 5 x 2=10m; a) Difference between premalignant lesion and premalignant condition
b) Hutchinson’s Triad c) Culture media for candida albicans and tubercule bacilli
d) Tzanck cells e) Auspitz’s sign
Part-B
4. Enumerate, bone disorders affecting the jaws. Describe the pathogenesis, clinical features, radiological
appearance and histopathology of fibrous dysplasia =9m
5. Write short notes on: 4 x 4 =16m; a) ANUG b) Garre’s osteomyelitis c) Fibroma
d) Histopathology of odontogenic keratocyst
6. Write briefly on: 5 x 2 =10m; a) Isomorphic phenomenon of kobner b) Delayed hypersensitivity
c) Monro’s abscesses d) Dead tracts of Fish e) Pathogenesis of pleomorphic adenoma




OCT-NOV-2005 (N.R.)


Part-A
1. Describe the pathogenesis, clinical X-Ray appearance of central ossifying fibroma with histological features=9m
2. Write short answers on: 4 x 4 =16marks; a) Proteolytic theory of dental caries b) Cancrum oris
c) Black hairy tongue d) Chronic hyperplasic pulpitis (Pulp polyp)
3. Write briefly on; 5 x 2 =10marks; a) Abrasion b) Barodentalgia c) Reed-Stermberg cell
d) Garre’s osteomyelitis e) Turner’s hypoplasia
Part-B
4. Describe clinical, histological features of Muco-epidemoid carcinoma =9m
5. Write short notes on: 4 x 4 =16marks; a) Malignant potential of dentigerous cyst
b) Osteopetrosis (Marble bone disease) c) Gardner syndrome d) Cervico-facial actinomycosis
6. Write briefly on: 5 x 2 =10marks; a) Giant cell granuloma b) Sarcoidosis c) Burkitt’s Lymphoma
d) Torus mandibularis e) Cementicles




MAR/APR.2005

Part-A
1. Define and classify Pulpitis. Write in detail the pathogenesis, Clinical features and histopathological features of
Acute Pulpitis =9marks
2. Write short answers on: 4 x 4 =16marks; a) Ludwig’s Angina b) Dentigerous Cyst
c) Contributing factors in Dental caries d) Oral Submucous fibrosis
3. Write briefly on: 5 x 2 =a) Addison’s Disease b) Hemophilia c) ANUG d) Scurvy e) Frey’s Syndrome
Part-B
4. Enumerate the development disturbances in the formatia of Dentine. Write in detail the clinical types, clinical
features, radiological features and histo-pathological features of Dental Dysplasia =9marks
5. Write short notes on: 4 x 4 =16marks; a) Paget’s Disease b) Mucocele c) Exfoliative Cytology
d) Lacto bacillus count test for Dental Caries
6. Write briefly on: 5 x 2 =10marks; a) Bell’s Palsy b) Cusp of Carabelli c) Bence Jones Protein
d) Koplik’s spots e) Liesegang ring calcification




OCTOBER, 2004.


Part-A
1. Enumerate the various viral infections affecting the oral cavity. Write in detail the pathogenic clinical features
and oral manifestations of Herpes Simplex Virus =9marks
2. Write short answers on: 4 x 4 =16marks; a) Amelogenesis Imperfecta
b) Healing of the socket following extraction c) Cherubism d) Garre’s Osteomyelitis
3. Write briefly on: 5 x 2 =10marks; a) Dens in Dente b) Papilloma c) Warthin’s tumour
d) Acidogenic theory of Dental caries e) ‘Dead Tracts’ of Dentin
Part-B
4. Classify salivary gland tumours. Write in detail the pathogenesis, clinical features, histopathological features of
pleomorphic adenoma =9marks
5. Write short notes on: 4 x 4 =16marks; a) Fluorosis b) Osteogenesis Imperfecta
c) Odontogenic Keratocyst d) Histopathology of caries of the camel
6. Write brief: 5 x 2 =a) Concrescence b) Café au lait spots c) Tuberculin Test d) Scurvy e) Grinspan syndrome



APRIL,2003 (N.R.)

Part-A
1. Define Auto Immune Disease and discuss in detail Pheunprigus. =9marks
2. Write short notes on: 4 x 4 =16marks
a) Fibrous dysplasia b) Odontomes c) Histopathology of squamous cell carcinoma d) Osteomyelitis
3. Briefly: 5 x 2 = a) Attrition b) Acute Pulpal pain c) Ankyloglosia d) PINK tooth e) Denture sore mouth
Part-B
4. Discuss in detail Microbiology of Dental Caries. 9marks
5. Short:a) Histopathology of Leukoplakia b)Histopathology of paget’s disease c)ANUG d)Periapical Granuloma
6. Write briefly on: 5 x 2 = a) Congenital syphilis b) Bell’s palsy c) Oral Manifestations of AIDS d) Scurvy e) Trigeminal neuralgia



(NEW REGULATIONS) OCTOBER, 2002


Part-A
1. Classify Odontogenic cyst and discuss in detail Dentigerous cyst =9marks
2. Short: 4 x 4 =a)Cherubism b)Histopathology of Squamous Cell carcinoma c) Hypercementosis d) Xerostomia
3. Briefly: 5 x 2=a) Rampant Caries b) Fordyce granules c) Cyclic neutropenia d) Fibroma e) Turner’s Tooth
Part-B
1. Discuss the Acidogenic theory of Dental Caries =9marks
2. Write short answers on: 4 x 4 =a) Hyper Parathyroidism b) Oral Thrust c) ANUG d) Calculus
3. Write briefly on: 5 x 2 =a) Dry Socket b) Attrition c) Neuralgic Pain d) Acute herpetic gingivostomatitis
e) Mottled enamel














OCTOBER, 2002 - OLD REGULATIONS


Part-A
1. Define and classify osteomyelitis. Describe the pathogenesis, clinical features and histopathology of chronic osteomyelitis=10marks
2. Write short notes on: 6 x 5 =a) Pindborg’s tumour b) Histopathology of caries in dentine c) Oral thrush d) Sialolithiasis e) Varicella-zoster f) Pulp stones
Part-B
3. Define and classify cysts of the oral cavity. Describe the pathogenesis, clinical features and hstiopathology of radicular cyst=10marks
4. Write short: 6x5=a) Dry socket b) ANUG (Acute Necrotizing Ulcerative Gingivitis) c) Trigeminal neuralgia
d) Peripheral giant cell granuloma e) Pleomorphic adenoma f) Enamel hypoplasia




9th APRIL, 2001.


Part-A
1. Enumerate and describe briefly developmental disturbances affecting the shape of teeth =10marks
2. Short Notes: a) Fibrous dysplasia b) Pemphigus c) Papilloma d) Odontomas
e) Zones of enamel caries f) Odontogenic keratocyst =6x5=30marks
Part-B
3. Enumerate viral infections of the oral cavity. Describe general and oral manifestations of lesions caused by Herpes viruses=10marks
4. Short Notes: a) Oral manifestations of syphilis b) Oral biopsy and exfoliative cytology c) Bell’s Palsy
d) Oral manifestations of Vitamin C deficiency e) Periapical granuloma f) Oral submucous fibrosis =6x5=30


OCTOBER, 2000.

Part-A
1. Enumerate Pre-cancerous lesions. Write in detail about the etiology, clinical features and histopathology of ‘Erythroplakia’-10marks
2. Short Notes: a) Dentinal dysplasia b) Apthous ulcer c) Mumps d) Biopsy e) Pernicious Anaemia
f) Healing of the Socket following extraction =6x5=30marks
Part-B
3. Define and classify Osteomyelitis. Write briefly on Garre’s Osteomyelitis =10marks
4. Short Notes: a) Geriatric changes in tooth b) Taurodontism c) Papilloma d) Mucocele and Ranula
e) Chronic hyperplastic pulpitis f) Sjogren’s syndrome =6x5=30marks


APRIL, 2000.

Part-A
1. Write briefly about the micro-organisms producing infections of the oral cavity =10marks
2. Short Notes: a) Alveolar abscess b) Stomatitis c) Periodontal cyst
d) Tissue changes in root fracture repair e) Unerupted teeth f) Herpes simplex =6x5=30marks
Part-B
3. Write an essay on “Developmental abnormalities of the teeth” =10marks
4. Short Notes: a) Histopathologic study of dental caries b) Sterilization of the Dentine c) H and E Staining
d) Methods of taking swab in root canal infection e) Salivary analysis f) Autoclave =6x5



OCTOBER, 1999.


Part-A
1. Define cyst. Classify cysts of Odontogenic origin. Write in detail about Dentigerous Cysts =10marks
2. Short Notes: a) Basal cell carcinoma b) Bohn’s nodule c) Hito-pathology of Lichen Planus
d) Haemangioma e) Ankylosis f) AIDS =6X5=30marks
Part-B
3. Define caries. Classify dental caries. Write in detail about “The Acidogenic theory’ =10marks.
4. Short notes: a) Noma b) Fordyce’s granules c) Bell’s Palsy d) Vitaminc C deficiency e) Thalassemia
f) Erythema multiforme. =6x5=30marks


10th APRIL, 1999.

Part-A
1. Classify salivary gland tumours. Write about histogenesis, clinical features, histopathology of pleomorphic adenoma =10m
2. Short Notes: a) Epidermoid cyst b) Mottled enamel c) Herpes zoaster d) Giant cell granuloma
e) Rickets f) Sub-mucous fibrosis =6x5=30marks
Part-B
3. Enumerate the developmental disturbances in size, shape, number and structure of teeth. Add a note on ‘Amelogenesis Imperfecta’ 10marks
4. Short Notes:a) Dry socket b) Amyloidosis c) Ludwig’s Angina d) Hutchnison’s triad
e) Frey’s syndrome f) Pindborg’s tumour -6x5=30marks



OCTOBER, 1998.

Part-A
1. Classify Odontogenic and Non-Odontogenic Cysts of the Oral Cavity. Write the Etiology and Histological features of Gorlin Cyst =10marks
2. Short Notes: a) Supernumerary teeth b) Dentinal Dysplasia c) Agranulo cytosis d) Biopsy
e) Ludwig’s angina f) Oral Submucous Fibrosis =6x5=30marks
Part-B
3. Classify the diseases of T.M.J. Write Etiology and Clinical features of Ankylosis =10marks
4. Short Notes: a) Amelogenesis Imperfecta b)Bohn’s Nodules c)Mumps d)Bell’s Palsy
e) Osteogenesis Imperfecta f) Oral Moniliasis =-6x5=30marks


APRIL, 1998.
Part-A

1. Mention the different types of Neuralgia. Explain in detail about Trigeminal Neuralgia =10marks
2. Short notes: a) Dentinogenesis Imperfecta b) Mucocele and Ranula c) Histopathology of Dentin
d) Candidiasis e) Pernicious Anaemia f) Herpes Simplex =6x5=30marks
Part-B
3. Classify the Benign and Malignant tumors of the Oral Cavity. Write in detail about clinical features, histological features of Ameloblastoma =10marks
4. Short Notes: a) Mottled Enamel b) Aphthous Ulcers c) The role of Lactobacillus in Dental Caries
d) Vitamin C deficiency e) Healing of the socket following extraction f) Hairy Leukoplakia =6x5











OCTOBER, 1997.

Part-A
1. Briefly describe the mechanisms for bacterial decomposition of the inorganic and organic structure of enamel and centine=10marks
2. Short Notes: a) Granuloma of Periodontium b) Tooth Ankylosis c) Fused Teeth d) Anodontia
e) Infectious acute periodontitis =5x5=25marks
Part-B
3. Write briefly on Histopathology of caries of the Enamel, Dentin and Cementum. Describe the role of lactobacillus group in caries activity with a note on their control =10marks
4. Short notes: a) Infection of developing tooth b) Hyperdementosis
c) Tissue changes after root-canal therapy d) Odontolgia e) Gram staining f) Borrelia Vincenti =6x5



APRIL, 1997.

Part-A
1. Classify Cysts of the Oro-Facial Region. Describe Pathogenesis and Histopathology of Odontogenic Keratocyst
2. Short Notes: a) Giant cell Granuloma b) Ludwig’s Angina c)Fordyce’s Granules d) Paget’s disease e) Herpes simple.5X5
Part-B
1. Define Dental Caries. Describe Histopathological features of Caries in Enamel =10marks
2. Short Notes: a) Papilloma b) Scurvy c) Periapical Granuloma d) Median Rhomboid Glossitis
e) Lichen Planus f) Tooth Ankylosis =6x5=30marksB.D.S. DEGREE EXAMINATION –
APRIL, 2007
THIRD BDS EXAMINATION
ORAL PATHOLOGY & MICROBIOLOGY
Time : 3 Hours Max. Marks : 70

Note: Answer Part A & B in separate answer books. Questions in Part’A’
should not be answered in Part’B’ and vice versa. Otherwise they
will not be valued.
Answer all questions.

PART - A

Mention the various malignant tumors of salivary glands. Write in detail 9
clinical and histological features of adenoid cystic carcinoma.
Write short notes on: 4x4=16
a) Histo-pathology of lichen planus
b) Gingival cyst of an adult
c) Median Rhoboid Glossitis
d) Miculiz Syndrome

Write briefly on: 5x2=10
a) Gemination
b) Torus Mandibularis
c) Reed sternberg cell
d) Hunters Glossitis
e) Streto-cocci Mutans
PART – B

What is erythroplakia. Give clinical and histological features of 9
speckled and homogenous types of erythoplakia.
Write short notes on: 4x4=16
a) Cervico – Facial Actinomycosis
b) Radiation Caries
c) Chronological Hypoplasia
d) Hutchinson Triad of Congenital Syphilis
Write briefly on: 5x2=10
a) Dry socket
b) Philadelphia chromosome
c) Pellagra
d) Enameloma
e) Dens Evaginatus

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