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Dental Anatomy > Exam 3 > Flashcards

Exam 3 Flashcards

1
Q

A single cone is

A

haplodont

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2
Q

Three cusps in line

A

triconodont

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3
Q

three cusps in a triangle

A

tritubercular molar

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4
Q

four cusps in a quadrangle

A

quadritubercular molar

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5
Q

Haplodont animal example

A

alligator teeth

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6
Q

Haplodont is the simplest

A

form of a tooth, single cone

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7
Q

In Hapolodont, how do animals swallow?

A

whole

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8
Q

In hapolodont, there is no

A

occulsion of the teeth

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9
Q

Quadritubercular example

A

apes and humans

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10
Q

Quadritubercular what contacts?

A

4 cusps that have occlusal contacts between max and mand

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11
Q

What do lobes represent?

A

a primary center of formation

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12
Q

All teeth are a combination of

A

four or more lobes

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13
Q

Facial and lingual aspects are what shape?

A

trapezoids of various dimensions

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14
Q

In the facial and lingual aspects are trapezoids, the short side is the _________ and the long side is the _________

A

short side is the base of the crown (cerivical) and long side is the occlusal or working surfaces of crown.

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15
Q

The trapezoid shapes allows for

A

interproximal spaces with interproximal tissue, space between the roots that allow for sufficient bone, each tooth contacts an adjacent tooth which protects interproximal gingiva, and each tooth has two antagonist in opposite arch.

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16
Q

What teeth dont have two anatongists?

A

Mandibular centrals and Max 3rd molars

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17
Q

If a tooth is lost, this arrangement prevents

A

extrusions and stabilize remaining teeth

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18
Q

Mesial/Distal Anterior teeth have what type of shape?

A

triangular shape

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19
Q

Mesial/Distal Anterior teeth have a wide base for

A

strength

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20
Q

Mesial/Distal anterior teeth have a tapered

A

outline (labially and lingually) narrowing to a thin ridge (incisal edge) which facilitates food penetration

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21
Q

Mesial/Distal Maxillary Posterior teeth have a

A

trapezoid shape

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22
Q

On the mesial/distal maxillary posterior teeth the occlusal surfaces are more ______ which mean the tooth can

A

constricted; force into food more easily

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23
Q

If occlusal surface was as wide as base,

A

forces of mastication would multiply

24
Q

Mesial/Distal Mandibular Posterior have a ______ shape

A

rhombodial

25
Q

The rhombodial shape

A

inclines the crowns to the lingual

26
Q

Primary function of teeth is

A

mastication (chewing) and digestion of food, speech, and personal appearance

27
Q

Occlusion

A

when mandibular teeth come into contact with maxillary teeth

28
Q

Buccal and lingual contours direct

A

food to and away from gingiva

29
Q

Inadequate stimulation occurs if

A

contour is too great (over-contoured)

30
Q

Over stimulation occurs if

A

contour is not enough (under-contoured)

31
Q

Over-contoured/under-contoured _______ should be avoided if possible

A

restorations

32
Q

Proximal contacts

A

area where two adjoining teeth make contact

33
Q

Proximal contacts help

A

protect soft tissues

34
Q

Proximal contacts the contact is

A

most occlusal/incisal boundary of interproximal space

35
Q

Proximal contacts other boundaries are

A

alveolar bone at base and proximal surfaces of adjacent teeth

36
Q

Gingival or interdental papilla

A

gingiva within the interproximal space

37
Q

Cervicoenamel ridge/cervical ridge which corresponds to

A

height of contour

38
Q

greatest area of contour (height of contour) as seen from facial or lingual

A

contact area

39
Q

Overall root form or shape, size, and number related to

A

work of the tooth

40
Q

Angle and position of ________ is important

A

incisal/occlusal

41
Q

Occlusal and incisal surfaces of all crowns in either arch don’t

A

contact a flat plane

42
Q

greatest area of contour (height of contour) as seen from the meisal/distal view is

A

the cervical ridge

43
Q

Posterior tooth job

A

forces/chew

44
Q

Anterior tooth job

A

tear

45
Q

Cusp is within the confines of

A

root

46
Q

Curve of Spee is looking from

A

buccal view

47
Q

Curve of Wilson is looking from

A

front view

48
Q

Because of curve of Wilson, buccal cusp tip are

A

larger

49
Q

Curve of Spree and Curve of Wilson form the

A

Sphere of Monson

50
Q

Dehiscence

A

is loss of alveolar bone on the facial (rarely lingual) aspect of a tooth that leaves a characteristic oval, root-exposed defect from the cementoenamel junction apically

51
Q

Fenestration

A

is a “window” of bone loss on the facial or lingual aspect of a tooth that places the exposed root surface directly in contact with gingiva or alveolar mucosa.

52
Q

Curve of Spee

A

anterior to posterior curve from tip of canines to molars

53
Q

Curve of Wilson

A

mesiolateral curve of posterior teeth. Anterior roots include to lingual

54
Q

Maxillary posterior roots (and mand 1st premolar) incline to lingual while Mand 2nd premolar and mand molars include to buccal (spee or wilson)

A

Wilson

55
Q

Maxillary premolar incline to distal while max molars incline to mesial and mandibular posteriors incline to distal

A

Spee

56
Q

What is the function of proper contact relation?

A

Stabilize arch, prevent food impaction, contributes to food flow pattern

Dental Anatomy (3 decks)

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