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SA Dentistry > Anatomy > Flashcards

Anatomy Flashcards

1
Q

What is included in the crown?

A

Everything from the gingival margin outside into the oral cavity

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2
Q

What is included in the root?

A

Below gingival margin

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3
Q

What is alveolar bone?

A

Bone surrounding the tooth alveolus

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4
Q

What is enamel?

A

“White shit on teeth”
Covers the tooth crown (visible portion of the tooth)
Effect barrier to heat/cold/sweet sensitivities and bacterial entrance into the tooth

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5
Q

What is enamel formed by and how thick is it in cats and dogs compared to humans?

A

Formed by ameloblasts (stops prior to tooth eruption) and cats and dogs enamel is thinner than humans.

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6
Q

What is cementum?

A

Covers the outer surface of the root
Cementoblasts produce cementum at apex of the root

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7
Q

What attaches to the cementum?

A

Periodontal ligament and gingiva
-loss of cementum prevents reattachment of the periodontal ligament

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8
Q

What can chronic irritation do to cementum?

A

Can cause hypercementosis and “lock” the tooth into the alveolar socket

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9
Q

What is the periodontal ligament?

A

Connective tissue which fills space between tooth and alveolar bone (what holds tooth into the bone).
-Attaches teeth to bone

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10
Q

What is the periodontal ligament composed of and what are some of its functions?

A

Composed primarily of collagen bundles in various shapes and orientations
-Shock absorption
-Transmits occlusal forces (bite forces)
-Supplies nutrients
-Provides tactile and proprioceptive information

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11
Q

What is Dentin?

A

Makes up bulk of the tooth
Produced by odontoblasts throughout life of the tooth
Roughly 72% mineral, 18% organic (collagen), 10% water

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12
Q

What do dentin tubules contain and what happens if they get exposed?

A

Dentin tubules contain cytoplasmic extensions of odontoblasts. If tubules exposed from losing enamel, tooth is sensitive and can become contaminated.

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13
Q

How will the amount of dentin change with age?

A

Young teeth will have very little dentin and a very wide pulp cavity. As animals grow, there is more dentin produced and less pulp cavity

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14
Q

How can you examine the health of a tooth?

A

Examine the amount of dentin, produced over the life of the tooth

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15
Q

What is the pulp?

A

Living tissues within the tooth located in the pulp chambers and root canals

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16
Q

What is the pulp comprised of and how is it nourished?

A

Comprised of connective tissue, nerves, lymph, and blood vessels
Odontoblasts line the pulp cavity and branch into the dentin tubules
Nourished via vessels entering the root canal at the apical (bottom of the tooth)

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17
Q

What is the gingival sulcus?

A

Little pocket between the cement-enamel junction and gingival margin - where stuff gets stuck. This junk will start to eat away at the periodontal ligament and bone.

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18
Q

What is the Mesial position?

A

Along the arcade, closest to the midline

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19
Q

What is the distal position?

A
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20
Q

What is the lingual position?

A

Inside towards the tongue

21
Q

What is the buccal position?

A

Towards the cheeks

22
Q

What is the labial position?

A

Towards the lips, changes at the commissary of the lips

23
Q

What is the apical position?

A

Towards the root apex

24
Q

What is the coronal position?

A

Towards the root crown

25
Q

What is the Modified Triadan System?

A

Upper right - 1
Upper left - 2
Lower left - 3
Lower right - 4

Upper right deciduous - 5
Upper left deciduous - 6
Lower left deciduous - 7
Lower right deciduous - 8

26
Q

When do adult canines erupt and why does this help with vaccines for dogs?

A

Erupt at 12 weeks, helpful for giving rabies vaccines for puppies

27
Q

When do adult incisors erupt for dogs?

A

3-5 months of age

28
Q

When do premolars and molars erupt for dogs?

A

Premolars = 4-6 months
Molars = 5-7 months

29
Q

When do deciduous incisors, premolars, and canines erupt for dogs?

A

Incisors = 4-6 weeks
Canines = 3-5 weeks
Premolars = 5-6 weeks

30
Q

What is the rule of 4 and 9?

A

Canine will always be #4
And first molar is always #9

31
Q

When do deciduous incisors, canines, and premolars erupt for cats?

A

Incisors = 3-4 weeks of age
Canines = 3-4 weeks
Premolars = 5-6 weeks

32
Q

When do adult incisors, canines, premolars, and molars erupt in cats?

A

Incisors = 3-4 months
Canines = 4-5 months
Premolars = 4-6 months
Molars = 5-7 months

33
Q

How many adult incisors do dogs have on the mandible and maxilla?

A

3 on the mandible and 3 on the maxilla

34
Q

How many adult canines do dogs have on the mandible and maxilla?

A

Two on the mandible and two on the maxilla

35
Q

How many adult premolars do dogs have on the mandible and maxilla?

A

4 premolars on the mandible and 4 premolars on the maxilla

36
Q

How many adult molars do dogs have on the mandible and maxilla?

A

2 molars on the maxilla and 3 molars on the mandible

37
Q

How many deciduous incisors do dogs have on the mandible and maxilla?

A

3 on mandible and 3 on maxilla

38
Q

How many deciduous canines do dogs have on the mandible and maxilla?

A

2 on the maxilla and 2 on the mandible

39
Q

How many deciduous premolars do dogs have on the mandible and maxilla?

A

3 on the maxilla and 3 on the mandible

40
Q

Do dogs have any deciduous molars?

A

No

41
Q

How many deciduous incisors do cats have on the mandible and maxilla?

A

3 on the maxilla and 3 on the mandible

42
Q

How many deciduous canines do cats have on the mandible and maxilla?

A

2 on the maxilla and 2 on the mandible

43
Q

How many deciduous premolars do cats have on the mandible and maxilla?

A

3 on the maxilla and 2 on the mandible

44
Q

Do cats have deciduous molars?

A

No

45
Q

How many adult incisors do cats have on the mandible and maxilla?

A

3 on the maxilla and 3 on the mandible

46
Q

How many adult canines do cats have on the mandible and maxilla?

A

Two on the maxilla and two on the mandible

47
Q

How many adult premolars do cats have on the mandible and maxilla?

A

3 on the maxilla and 2 on the mandible

48
Q

How many adult molars do cats have on the mandible and maxilla?

A

1 on the maxilla and 1 on the mandible

SA Dentistry (4 decks)

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