Bds I (First) Prof. Annual Examination 2014-15 Course Code: bds103



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BDS I (First) Prof. Annual Examination 2014-15
Course Code: BDS103 Paper ID: 0311110

Dental Anatomy Embryology and Oral Histology
Time: 3 Hours Max. Marks: 70 Max Marks: 75
Note: Attempt all questions. Draw the diagram wherever necessary.

Part-A
1. Describe difference between deciduous and permanent human dentition. (8)

2. Write the anatomy of human permanent maxillary canine (All aspects) in detail. Draw labeled diagram of all aspects. (8)


3 Write short notes on the following: (3x3=9)

a) Cusp of carabelli

b) Spillways

c) Line angle


4. Select the best answer for each question: - (2x5=10)

i) According to palmer notation system permanent maxillary molar of right side is denoted as:

a) 3 b) 6

c) 26 d) 16

ii) Corner stone of the dental arch is:

a) Molar


b) Canine

c) Incisors

d) Premolars

iii) Permanent maxillary first molars have:

a) 5 cusps

b) 4 cusps

c) 3 cusps

d) 6 cusps

iv) Bicuspids are:

a) Molar


b) Premolar

c) Canines

d) Incisors

v) Mandibular notch is present in the:

a) Upper border of the ramus

b) At the angle of the mandible

c) Distal border of the ramus

d) Anterior border of the ramus



Part-B

1. What is periodontal ligament? Describe in detail about different types of periodontal fibres. (8)


2. Define hypercementosis. Write about hypertrophic and hyperplastic hypercementosis. Write the clinical consideration of cementum. (8)
3 Write short note on the following: (3x3=9)

a) Histology of shedding of deciduous teeth

b) Composition and functions of saliva

c) Mechanism of tooth movement


4. Select the best answer for each question: - (2x5=10)

i) In vitamin- a deficiency, the dentin formed is:

a) Normal dentin

b) Few tubules dentin

c) Osteodentin

d) Irregular dentin


ii) Perikymata are external manifestation of:

a) Lamellae

b) Tufts

c) Spindle

d) Line of retzius

iii) The diameter of rod from DEJ towards the surface of enamel increases at a ratio of about:

a) 1:2

b) 2:1


c) 4:1

d) 1:4


iv) In cross sections of human enamel under the light microscope, many rod resemble:

a) Fish scale like

b) Key holes like

c) Staggered arches

d) Irregular rods near DEJ

v ) Occlusal trauma causes:

a) Changes to intra alveolar tissue

b) Gingival recession



c) Pocket formation

d) Gingivitis


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