Comparative Dental Anatomy - EQ

Question 1

The tooth with a short crown:long root is called_____________________

Answer 1

Brachydont

Question 2

The long crown:short root type of tooth is a _____________________

Answer 2

Hypsodont

Question 3

Describe heterodont teeth

Answer 3

Set of teeth with different morphologies (insicors, canines, premolars, molars)

Question 4

List the 3 occlusal patterns/cuspal morphologies

Answer 4

• Lophodont
• Bunodont
• Selenodont

Question 5

Which occlusal pattern pertains to the horse, characterized by “connected” cusps”?

Answer 5

Lophodont

Question 6

Give an example of a species with a selenodont occlusal pattern

Answer 6

Ox

Question 7

Pigs and humans have this type of cuspal morphology:

Answer 7

Bunodont

Question 8

What is the occlusal pattern in dogs?

Answer 8

Secodont

Question 9

What can be described with the number and classification of dentition?

Answer 9

Dental formula of species

Question 10

What is the primary dentition formula for eq?

Answer 10

3(0) 3 (0) x 2

Question 11

What is the permanent dentition formula for eq?

Answer 11

3 1 3/4 3 / 3 1 3 3

Question 12

Which teeth would be the “wolf” teeth?

Answer 12

1st premolar

Question 13

Which tooth may be present in mares, but is more prevalent in stallions 5 years or older?

Answer 13

Canine teeth

Question 14

How many total permanent teeth do horses have?

Answer 14

40-42

Question 15

Ruminants have _______ permanent teeth

Answer 15

32

Question 16

List a cause of why eruption may be delayed

Answer 16

GH deficiency

Question 17

Describe permanent molar eruption

Answer 17

They take the longest to erupt (can be up to 2 years)

Question 18

In which species is the Triadan System based on?

Answer 18

Pigs

Question 19

Which number is the central incisor?

Answer 19

01

Question 20

Canine is #_____

Answer 20

04

Question 21

1st molar is always number:

Answer 21

09

Question 22

What is the space in the dental arcade that has no teeth called>

Answer 22

Diastema

Question 23

In the ox, which tooth can be considered an incisor because of its relative location to others?

Answer 23

Canines (04)

Question 24

List factors you must take into consideration when estimating the age of a horse

Answer 24

• breed
• diet
• medical hx

Question 25

What is the dentition of the horse habits adaptated?

Answer 25

Grazing and grinding (continuos grazing of rough grass)

Question 26

The skeletal abnormality in which the mandible is significantly shorter than the maxilla is:

Answer 26

Parrot mouth

Question 27

Which teeth are specialized for prehension and cutting food?

Answer 27

Incisors

Question 28

Pre molars and molars are involved in what action?

Answer 28

Grindings

Question 29

Which teeth in the horse are NOT hypsodont when present?

Answer 29

Canine and 1st premolar

Question 30

What are the irregularities on the ventral border of the mandible in young horses that smooth with age?

Answer 30

Transitory tubercles

Question 31

How is the masticatory surface of teeth increased during development?

Answer 31

Folding of enamel

Question 32

What is the result of the enamel folding in the teeth?

Answer 32

Cement-filled Infundibulum

Question 33

What is the term used for the infundibulum in incisors?

Answer 33

Cups

Question 34

Do canine teeth erupt?

Answer 34

No

Question 35

How many cheek teeth in the adult equine mouth?

Answer 35

24

Question 36

This teeth have a distinct neck between crown and root?

Answer 36

Primary predecessors

Question 37

After the permanent tooth erupts, the primary teeth are resorbed until just a ______ remains

Answer 37

Cap

Question 38

When the maxillary arcade is wider that the mandibular arcade, it is a condition known known as:

Answer 38

Anisognathia

Question 39

T/F Anisognathia is normal in horses

Answer 39

True

Question 40

What is a complication due to anisognathia developed in horses?

Answer 40

Enamel points

Question 41

How can enamel points be managed?

Answer 41

By floating the teeth regularly

Question 42

6d - 6m - 6y is for the eruption of (primitive/permanent) incisors in horses

Answer 42

Primitive

Question 43

Permanent incisors come up at what timeline for horses?

Answer 43

2.5 - 3.5 - 4.5

Question 44

T/F are considered when aging horses by their teeth

Answer 44

False

Question 45

Up to which age is teeth aging most exact?

Answer 45

6 years

Question 46

At around what age does the cup completely dissappear?

Answer 46

6 years

Question 47

When there is contact between the maxillary and mandibular incisors it is termed:

Answer 47

In wear

Question 48

When the adjacent teeth are at the same height they are:

Answer 48

Level

Question 49

The secondary dentin laid down over pulp cavity is the:

Answer 49

Dental star

Question 50

At around what time is the second incisor in equine level?

Answer 50

5 yrs

Question 51

How can you identify a primary vs a permanent tooth?

Answer 51

Primary are whiter and have a distinct neck permanent incisors taper uniformly