The Oral Mucosa - M2

Question 1

What are the uses of Incisors?

Answer 1

Cutting and biting food

Question 2

What are the uses of Canines?

Answer 2

Ripping and tearing food

Question 3

What are the uses of molars & pre-molars?

Answer 3

Chewing food

Question 4

When do Deciduous teeth begin to erupt?

Answer 4

6months - approx. 3 years

Question 5

How many teeth are?

Answer 5

20

Question 6

How many incisors are included in deciduous teeth?

Answer 6

8

Question 7

How many canines are included in deciduous teeth?

Answer 7

4

Question 8

How many molars are included in deciduous teeth?

Answer 8

8

Question 9

When will tooth A erupt?

Answer 9

8 months upper / 10 months lower

Question 10

When will tooth B erupt?

Answer 10

13 months upper / 11 months lower

Question 11

When will tooth C erupt?

Answer 11

20 months upper / 19 months lower

Question 12

When will tooth D erupt?

Answer 12

16 months upper / 16 months lower

Question 13

When will tooth E erupt?

Answer 13

27 months upper / 29 months lower

Question 14

When do permanent dentition begin to erupt?

Answer 14

6 years old

Question 15

How many teeth are in a permanent dentition?

Answer 15

32

Question 16

When does the 1’s Erupt?

Answer 16

7-8 years upper / 6-7 years lower

Question 17

When does the 2’s Erupt?

Answer 17

8-9 years upper / 7-8 years lower

Question 18

When does the 3’s Erupt?

Answer 18

10-12 years upper / 9-10 years lower

Question 19

When does the 4’s Erupt?

Answer 19

9-11 years upper / 9-11 years lower

Question 20

When does the 5’s Erupt?

Answer 20

10-11 years upper / 9-11 years lower

Question 21

When does the 6’s Erupt?

Answer 21

6-7 years upper / 6-7 years lower

Question 22

When does the 7’s Erupt?

Answer 22

12-13 years upper / 11-12 years lower

Question 23

When does the upper 8’s Erupt?

Answer 23

18-25 years

Question 24

When are roots of permanent dentition fully formed after eruption?

Answer 24

3 years

Question 25

How thick can enamel be?

Answer 25

2.5 mm

Question 26

What is enamel made of?

Answer 26

millions of long microscopic crystalline prisms

Question 27

Enamel is 96% inorganic, what are the two most common inorganic constituents?

Answer 27

Calcium and Phosphate

Question 28

What is the remaining 4% of enamel made up of?

Answer 28

3% water & 1% organic matter

Question 29

What is dentine made of?

Answer 29

Tubular, 70% inorganic salts / 30% water

Question 30

What is pulp made of?

Answer 30

Blood vessels and nerves - 50% inorganic salts / 50% organic collagen fibres

Question 31

What is the Periodontium?

Answer 31

Periodontal membrane - Ligaments & fibres

Question 32

What does the Alveolar bone do?

Answer 32

Support the teeth

Question 33

What is each tooth socket lined with?

Answer 33

Thin layer of bone called Lamina Dura

Question 34

What is the dept of the gingival margin / gingival crevice?

Answer 34

no more than 0.5mm - 1mm in depth

Question 35

What is the Epithelial tissue called in the oral cavity?

Answer 35

Mucous membrane

Question 36

What is saliva made of?

Answer 36

99.5% water / 0.5% dissolved substances (proteins/waste products)

Question 37

What is the enzyme in saliva called?

Answer 37

Salivary Amylase

Question 38

What is increased saliva flow called?

Answer 38

Hypersalivation

Question 39

What is decreased saliva flow called?

Answer 39

Xerostomia

Question 40

What are the 3 main salivary glands called?

Answer 40

Submandibular, sublingual & parotid

Question 41

What are the 4 muscles of mastication called?

Answer 41

Masseter, Medical Pterygoid, Temporalis & Lateral Pterygoid

Question 42

How much saliva does the Submandibular gland produce?

Answer 42

70%

Question 43

How much saliva does the Sublingual gland produce?

Answer 43

5%

Question 44

How much saliva does the Parotid gland produce?

Answer 44

25%