FIRST B.D.S DEGREE EXAMINATION
(Regulations for the candidates admitted from 2008-09 onwards)
Paper III DENTAL ANATOMY, EMBRYOLOGY AND ORAL HISTOLOGY
Q.P. Code: 544170
Time: Three hours Maximum: 70 Marks
Answer ALL Questions
I. Essays: 2 x 15 30 Marks
1. Describe the bell stage of tooth development with the help of diagrams and add a
note on root development.
2. Define and classify oral mucosa. Describe the macroscopic and microscopic
structure of gingiva.
II. Short notes on: 6 x 5 30 Marks
1. Age changes in dentin.
2. Ligament traction theory.
3. Duetal system of major salivary glands.
4. Differences between maxillary 1
st
premolar and mandibular 1
st
premolar tooth.
5. Epithelial mesenchymal interaction in tooth development.
6. Dentogingival junction.
III. Short answer questions: 5 x 2 10 Marks
1. pH of saliva.
2. Epithelial attachment.
3. Fibroblasts.
4. Structure of a taste bud.
5. Key of occlusion.