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Dental anatomy > tooth morphology > Flashcards

tooth morphology Flashcards

1
Q

what are the succadaneous teeth

A

the following permanent teeth: incisors canines and premolars they are called so because they take the place of their former predecessors

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2
Q

what is the first permanent tooth that emerges in the presence of primary teeth

A

Permanent first molar (aka 6year molar)

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3
Q

the crown of primary maxillary 1st molar resembles that of

A

permanent premolars

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4
Q

the roots of primary maxillary molars resemble that of

A

permanent maxillary molars -in that they have 3.

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5
Q

what primary tooth is unique because it has a crown form unlike any permanent tooth

A

primary mandibular first molar

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6
Q

which primary tooth has the longest root compared to the rest of primary teeth

A

Primary maxillary canine

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7
Q

what ridge connects the cingulum to the cusp tip in the primary maxillary canine in the lingual ascpect

A

LINGUAL RIDGE.

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8
Q

which of the primary teeth has a straight incisal edge

A

mandibular central incisor

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9
Q

what primary tooth has an incisal ridge that slopes down distally

A

primary mandibular lateral incisors

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10
Q

which of the following primary teeth have thick necks maxillary or mandibular canines

A

mandibular canines

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11
Q

in a buccal aspect of primary first maxillary molars, which root is the longest

A

medial buccal root

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12
Q

what is the nlmost prominent cusp on a primary maxillary 1st molar

A

mesiolingual cusp

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13
Q

Primary maxillary 1st molar is particularly distinguished from other teeth by

A

a pronounced convexity on the buccal outline of the cervical third

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14
Q

The primary maxillary 2nd molar has characteristics resembling what permanent tooth

A

permanent maxillary 1st molar

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15
Q

cusp of carabelli is foung on which primary tooth,which tooth has 5 cusps

A

Primary maxillary 2nd molar

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16
Q

A severe, potentially life-threatening allergic reaction.

A

anaphylaxis

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17
Q

which of the primary teeh وحيد القرن،in that it does not resemble any of the other teeth, primary or permanent.

A

primary mandibular 1st molar

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18
Q

what teeth are the only neighboring teeth in the dental arches with mesial surfaces in contact

A

the max and mand CI

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19
Q

which permanent tooth may show considerable variance in its crown form

A

maxillary lateral incisor

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20
Q

which permanent teeth show few instances of malformation or anomalies

A

mandibular central incisors

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21
Q

which permanent tooth tends to be fairly symmetrical

A

mandibular central incisor

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22
Q

which permanent teeth are referred to as the CORNERSTONES of dental arches

A

permanent maxillary and mandibular canines

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23
Q

they are very valuable teeth. when conseudered either as units of the natural dental arches or as possible assistants in stabilizing replacements of lost teeth in prosthetic procedures

A

permanent max and mand canines

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24
Q

when permanent teeth are lost ,which teeth are usually the last to go

A

permanent canines

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25
Q

what are the most stable permanent teeth in the mouth and why

A

CANINES,The self-cleaning qualities of the canines; their smooth, pointed shape; the thickness of their crowns; and their strong anchorage

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26
Q

aa prominence on the surface of the superior maxillary bone caused by the socket of the canine tooth

A

canine eminence

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27
Q

this tooth seems to be a compromise in the change from anterior to posterior teeth

A

permanent CANINES

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28
Q

a variation in the form of what tooth causes bifurcated roots

A

perrmanent mandibular canine

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29
Q

the root of which permanent tooth narrows mesially

A

permanent mandibular canine

29
Q

the root of which permanent tooth narrows mesially

A

permanent mandibular canine

30
Q

canines may be also referred to as

A

cuspids

31
Q

premolars may be also reffered to as (when appropriate) by

A

bicuspids

32
Q

which possesses a sharper cusp, 2st or 1st premolar

A

1st premolar has a sharper cusp tip than 2nd premolar( remember who is closer to the canine)

33
Q

which permanent teeth resemble the canines ehen viewed buccally

A

MAXILLARY premolars

34
Q

which perm tooth acts as a prehensile (tearing tooth)much like the canine

A

max and mand FIRST premolars

35
Q

which perm teeth are more effeicient as grinding teeth (they function more like molars)

A

max and man SECOND premolars

36
Q

when premolars have 2 roost ,in what position are they placed

A

buccally and lingually

37
Q

the crown of the permanent maxillary first premolar has what shape BUCCALLY

A

trapezoidal

38
Q

the crown of the permanent maxillary 1st premolars has what shape LINGUALLY

A

spheroidal( has circular symmetry)

39
Q

what shape does the crown of a permanent maxillary premolar from an occlusal aspect take

A

hexagonal

40
Q

which is larger in size , maxillary first premolar or maxillary second premolar

A

maxillary first premolar

41
Q

what is the most obvious difference between max 1st and 2nd premolars

A

turn the tooth over to the lingual(palatal) surface, if the lingual cusp is longer then we have a max second premolar if it is shorter than the buccal cusp then it s a max first premolar

42
Q

Difference between max 1st and 2nd premolar roots

A

1st premolar usually has 2 roots unlike 2nd premolar, ALSO the developmental depression is found on the mesial surface of the max 1st premolar root while on the max 2nd premolar root, it is found distally

43
Q

which has a more rounded or ovale occlusal shape, max first or second premolar

A

max second premolar

44
Q

which has a wrinkled occlusal view because of the several supplementary grooves radiating from the central groove

A

maxillary second premolar

45
Q

maxillary premolars and mandibular 1st premolar develop from how many lobes

A

4

46
Q

MANDIBULAR 2nd premolar develops from how many lobes

A

5 (just like its notation according to palmer)

47
Q

which premolars fail to conform the implications of the term bicuspid

A

mandibular premolars

48
Q

which is the largest of the two maxillary premolars

A

maxillary first premolar

49
Q

which is the largest of the two mandibular premolars

A

mandibular second premolar

50
Q

How many cusps does the mandibular second premolar have, order them form largest to smalles

A

3 cusps from largest to smallest : buccal cusp,mesiolingual. distolingual

51
Q

mesiolingual dev dep is found on which permanent tooth

A

mandibular first premolar

52
Q

which tooth has a square shaped occlusal view

A

mandibular second premolar

53
Q

these teeth assist the mandibular molars in performing the major in the mastication and comminution of food

A

maxillary molars

54
Q

which of the three roots of the maxillary molars is the largest

A

the LINGUAL root

55
Q

is the perm first molar a succadaneous tooth

A

no because it erupts posterior to the second deciduous molar, so it has no predecessor

56
Q

which is the largest perm tooth in the maxillary arche

A

max FIRST molar

57
Q

this cusp is found lingual to the mesiolungual cusp of the maxillary first molar

A

cusp of carabelli

58
Q

which is the largest of the well developed cusps in the maxillary first molar

A

the mesiolingual cusp

59
Q

order the roots of the maxillary first molar from largest to smallest

A

lingual , mesiobuccal, distobuccal

60
Q

each mandibular molar has how many roots and in what position are they placed

A

2 roots, one mesial and one distal

61
Q

thw crown of the mandibular molars are shorter in what respect than those of the teeth anterior to them

A

cervicoocclusally

62
Q

difference in dimensions between max and mand molars

A

max molars are wider buccolingually than mesiodistally , the opp is true fir mandibular molars

63
Q

name the cusps that are found on the buccal side of the mand first molar

A

mesiobuccal, distobuccal,and •distal• cusps

64
Q

how many developmental grooves are there on the buccal sidee of 30 and what cusps do they separate

A

there are 2, the mesiobuccal DG which separates the mesiobuccal cusp from the distobuccal cusp, and the distobuccal DG which separates the distobuccal cusp from the DISTAL cusp

65
Q

what is the name of the groove that separates the distobuccal cusp from the distak cusp on the buccal aspect of 30

A

distobuccal DG

66
Q

on 31( mandibular right 2nd molar) how many cusps do we have

A

4 cusp , mesiobuccal ,distobuccal, mesiolingual,distolingual

67
Q

how many grooves are found on the buccal aspect of 31

A

1 it is named the buccal DG

68
Q

which permanent tooth has a cross-shaped pattern on the occlusal surface and why

A

mandibular 2nd molar,, when the buccal and lingual DGs join the central groove they form a cross shaped pattern

69
Q

3 roots, 3 or 4 cusps, short crown, extreme convexoty mesiobuccally at the cervival third

A

primary maxillary 1st molar

70
Q

2 roots, 5 cusps , resembles permanent 1st molar

A

primary mandibular 2nd molar

71
Q

three roots, 5 cusps, resembles permanent 1st molar

A

primary maxillary 2nd molar

Dental anatomy (2 decks)

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