Oral Cavity

Question 1

Name the 2 parts if the gum

Answer 1

Marginal or Free gingiva and attached gingiva

Question 2

Which nerve supplies the upper gum?

Answer 2

Superior alveolar nerve (labial aspect)

Question 3

Which aspect of the gum does the nasopalatine and lingual nerves supply?

Answer 3

Lingual aspect

Question 4

Which nerves supply the lower gum?

Answer 4

Mandibular and mental nerves

Question 5

State the 3 parts of the teeth

Answer 5

Crown, Neck and Root

Question 6

Describe the structure of a tooth

Answer 6

Pulp- centre
Dentine_ surrounds pulp
Enamel- surrounds denting
Cementum- calcified connective tissue covering surface if the root and provides medium for periodontal ligament fibres
Periodontal membrane- fleshy tissue between tooth and tooth socket

Question 7

State the types of teeth and there functions

Answer 7

Incisors- cutting teeth
Canines- holding and tearing teeth
Premolars- bicuspid tooth
Molars- grinding teeth

Question 8

Timeliness for the eruption of permanent teeth

Answer 8

First Molar- 6 years
Medial Incisors- 7 years
Lateral Incisors- 8 years
First premolar- 9 years
Second premolar- 10 years
Canines- 11 years
Second molar- 12 years
Third molar- 17-25 years (wisdom)

Question 9

Which nerves supply the upper teeth?

Answer 9

Post, Middle and Anterior Superior Alveolar Nerve

Question 10

Which nerve supplies the lower teeth

Answer 10

Incisive nerve which is a branch of the inferior alveolar nerve

Question 11

State the boundaries of the Oral Cavity Proper

Answer 11

Anterolaterally- Teeth and gums
Roof - Hard and soft palate
Floor- Tongue
Anteroinferiorly - Sublingual region
Posteriorly- Oropharyngeal isthmus
Lymphatic Drainage

Question 12

Name the 2 parts of the palate

Answer 12

Hard and soft palate

Question 13

What does the hard palate partition

Answer 13

Nasal and oral cavity