The Teeth

Question 1

What is a heterodont

Answer 1

possesses more than one tooth form

Question 2

What is a Diphyodont

Answer 2

Has more than one set of teeth

Question 3

Diastema

Answer 3

A gap between the teeth

Question 4

Crown

Answer 4

The neck and root of the tooth (covered in enamel)

Question 5

cementoenamel

Answer 5

slightly visible border anatomical border identified on a tooth

Question 6

What are teeth anchored in their socket by?

Answer 6

Alveoli

Question 7

Lamina dura

Answer 7

thin shell of dense bone lining the alveoli

Question 8

Pulp cavity

Answer 8

central space of the tooth containing pulp soft tissue with nerves, vessels and lymphatics

Question 9

What connective tissue attaches root to bone via periodontal ligaments

Answer 9

periodontium

Question 10

What four defined structures are part of periodontal tissues?

Answer 10

gingiva cementum, alveolar bone and periodontal ligament

Question 11

Gingiva

Answer 11

Gums or gingiva is the name for the oral mucosa that covers the tooth

Question 12

Free Gingiva

Answer 12

The edge of the gum, connected to the tooth

Question 13

Attached Gingiva

Answer 13

The part that attaches the gum to the bone

Question 14

How do the gingiva attach?

Answer 14

via a basement membrane from the epithelium in the gum to the tooth enamel

Question 15

Brachydont

Answer 15

smaller and low crowned teeth suitable for feeding on soft diet

Question 16

Hypsodont

Answer 16

Larger crown that can resist that can resist wear and tear of feeding on tough and fibrous diet, e.g in ungulates

Question 17

Radicular

Answer 17

Forms a root

Question 18

Aradicular

Answer 18

Does not form a root

Question 19

gingival crevice

Answer 19

the ridge in your mouth where the teeth meet the gums

Question 20

Enamel

Answer 20

Hardest substance in the body, Acellular- cannot regenerate, in brachydont (covers only the crown), Hypsodont (covers the entire body of the tooth)

Question 21

Dentin

Answer 21

Forms the bulk of the tooth, hard substance similar to bone

Question 22

Cementum

Answer 22

least hard of all, thin bonelike layer

Question 23

Infundibulum

Answer 23

The funnel-like centre of the tooth

Question 24

Incisors

Answer 24

adapted for grasping, pinching scratching and nipping

Question 25

Canines

Answer 25

"weapons" for tearing flesh during hunting and fighting

Question 26

Premolars

Answer 26

rostral cheek teeth which have deciduous precursors

Question 27

Molars

Answer 27

flattened and triangular with jagged edges, serrated edge blades

Question 28

vestibular

Answer 28

surface of tooth facing the mouth

Question 29

Mandible

Answer 29

lower jaw

Question 30

Maxillary

Answer 30

upper jaw

Question 31

Lingual

Answer 31

side of tooth facing into the mouth

Question 32

Palatal

Answer 32

lingual surface of the Maxillary teeth

Question 33

Coronal

Answer 33

a way to describe the occlusal surface (occlusal is when the teeth touch each other)

Question 34

Mesial

Answer 34

surface of the incisor teeth that are towards the middle or median plane of the mouth Rostral surface of the canine, pre molar and molar

Question 35

Distal

Answer 35

surface of the incisor teeth that are away from the middle or median plane of the mouth- Caudal surfaces of the canine, pre molar and molar

Question 36

What teeth are pigs born with?

Answer 36

'needle teeth' which are deciduous, their canines continuously erupt and the lower are larger

Question 37

What teeth do dogs have

Answer 37

Their canines are the longest, they also have carnassial teeth which are used for 'shearing'

Question 38

How many roots do dog incisors have?

Answer 38

one root

Question 39

Which dog teeth only have one root?

Answer 39

PM1's and lower M3

Question 40

The dental pad

Answer 40

a feature of ruminant dental anatomy that helps them gather large quantities of grass and plant matter

Question 41

Features of ruminant teeth

Answer 41

Incisors and canines are brachydont, canines are assimilated to incisors- pre molars and molars are hypsodont with a large diastema

Question 42

Where is the dental pad?

Answer 42

In the position of the upper teeth, interacts with the lower incisors

Question 43

What are incisors in horse teeth like?

Answer 43

High crowns with a single root, curved in younger horses

Question 44

What are canines in horse teeth like?

Answer 44

In mares they are often small and may not erupt, deciduous canines are often absent

Question 45

What are hypsodonts in horse teeth like?

Answer 45

continuous wear, they slowly erupt with a delayed development of roots and a complicated folding of enamel

Question 46

What are teeth like in the maxillary cheek of horses?

Answer 46

Teeth have less pronounced infoldings but two enamel rings called infundibulum

Question 47

Wolf teeth in horses

Answer 47

small teeth, often lacking

Question 48

Pre molars in horses

Answer 48

they form a continuous surface

Question 49

Infundibulum

Answer 49

a cup or funnel shaped invagination of enamel from the occlusal surface of equine incisors, looks like a dark mark

Question 50

What happens to the infundibulum over time?

Answer 50

as the tooth wears over time the appearance changes, the cup gets smaller on incisors over time

Question 51

Why do rabbits belong to the group lagomorpha

Answer 51

Because they have two small second incisors or peg teeth behind the maxillary incisors

Question 52

What is the enamel of the tooth like in rabbits?

Answer 52

not evenly distributed, its thicker on the facial aspect and thinner on the lingual aspect

Question 53

What are the incisors and cheek teeth like in lagomorphs?

Answer 53

aradicular hypsodonts so they have long anatomic crowns and remain open-rooted

Question 54

Pulp

Answer 54

Soft tissue inside the tooth, contains nerves, blood vessels and connective tissue

Question 55

What teeth do rabbits not have?

Answer 55

Canines

Question 56

What artery supplies the lower teeth?

Answer 56

inferioralveolar

Question 57

Which nerve innervates the maxillary and mandibular divisons?

Answer 57

Trigeminal nerve

Question 58

What innervates the upper incisor teeth?

Answer 58

infraorbital nerve

Question 59

What supplies blood to the

Answer 59

inferialoveolar nerve which runs in the mandibular canal