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Restorative Dentistry > Dental Terminology > Flashcards

Dental Terminology Flashcards

1
Q

homodonts are animals that have teeth that are _______

A

all the same

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2
Q

heterodonts are animaks that have teeth that have ______

A

different classes

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3
Q

monophyodont means having only _____ set of teeth

A

one

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4
Q

polyphyodont means having an _______ succession of teeth

A

endless

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5
Q

diphydont means having only ____ sets of teeth

A

two

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6
Q

the primary/deciduous dentition is present in children _____ years old

A

2-6

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7
Q

all the teeth in the primary dentition are usually shed by the age of _____

A

12-13

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8
Q

universal numbering system

A

starts from the maxillary right 3rd molar counts around to maxillary left 3rd molar(16) then drops down to the mandibular left 3rd molar and around to the mandibular right 3rd molar (32)

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9
Q

universal numbering system for primary teeth

A

uses the same process but with letters A—> T

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10
Q

Federation dentaire internationale FDI system

A

first number is denoted by quadrants 1 through 4 (perment dentition) starting with maxillary right, then max. left, mandibular left then mandibular right

primary dentition is 5-8

second number is 1 through 8 starting at central incisor and going towards third molar (1-5 for primary)

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11
Q

palmer notation

A

uses brackets to denote the quadrant
I = maxillary right
I = maxillary left
-I = mandibular right
L = mandibular left
then teeth are numbered
1-8 same as FDI and letters for primary

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12
Q

enamel is the white protective surface layer on the _______

A

anatomic crown

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13
Q

enamel is the hardest substance in the body and its mineral content is _______

A

95% calcium hydroxyapatite

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14
Q

enamel developed from the enamel organ_______ and is a product of specialized epithelial cells called _______

A

(ectoderm), ameloblasts

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15
Q

cementum is the dull external layer of the ______

A

anatomical root

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16
Q

the cementum is very thin and is composed of ________ and ____ organic matter (collagen)

A

65% calcium hydroxyapatite, 35%

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17
Q

cementum is about as hard as bone but considerably softer than _____

A

enamel

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18
Q

cementum develops from the dental sac _____, and is produced by cells called ________

A

(mesoderm), cementoblasts

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19
Q

dentin is a hard yellowish tissue underlying the ________ and _______

A

cementum, enamel

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20
Q

mature dentin is composed of ______ and about ______ organic matter (collagen) and water

A

70% calcium hydroxyapatite, 18%

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21
Q

dentin is harder than ______ but softer and less brittle than ______

A

cementum, enamel

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22
Q

dentin develops from the embryonic dental papilla _______ and are produced by cells called _______

A

(mesoderm), odontoblasts

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23
Q

pulp is the soft _____ tissue in the cavity or space at the center of the crown and root called the _____

A

connective, pulp cavity

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24
Q

pulp contains a rich supply of _______ and ______

A

blood vessels, nerves

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25
Q

the pulp cavity has a coronal portion _____ and a root portion _______

A

(pulp chamber), (pulp canal or root canal)

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26
Q

the pulp cavity is surrounded by dentin, except at a hole (or holes) near the root tip (apex) called an ______

A

apical foramen

27
Q

nerves and blood vessels enter the pulp through the _____

A

apical foramina

28
Q

pulp develops from the dental papilla ______

A

(mesoderm)

29
Q

anatomical crown is the part of the tooth normally covered by _______

A

enamel

30
Q

anatomical root is the part of the tooth normally covered by _____

A

cementum

31
Q

clinical crown is the part of the tooth that is _______

A

physically visible to the eye

32
Q

clinical root is the part of the tooth that is _______ since it is covered by the gingiva

A

not visible to the eye

33
Q

another name for facial surface of posterior teeth is ______

A

buccal

34
Q

another name for the facial surface of anterior teeth is _____

A

labial

35
Q

palatal surface can only be used to describe the _______

A

maxillary lingual arch

36
Q

guideline for combining terms for line angles follow the order ______

A

mesial is used first, then distal, facial, lingual, and lastly occlusal or incisal

37
Q

root to crown ratio formula is the ______ divided by _______

A

root length, crown length

38
Q

a tooth with a _____ root to crown ratio is usually not the best choice for attachment of false teeth

A

small

39
Q

triangular ridges are located on each major ___ of posterior teeth and each triangle ridge extends from a cusp tip towards the ______ in the middle of the occlusal surface faciolingually

A

cusp, depression (sulcus)

40
Q

when a triangular ridge from a facial cusp meets a triangular ridge from an adjacent lingual cusp the two ridges together form a longer ________

A

transverse ridge

41
Q

when a triangular ridge from a facial cusp meets a triangular ridge from an diagonal lingual cusp the two ridges together form an ________

A

oblique ridge (only seen in maxillary molars)

42
Q

mamelons are three scallops or tubercles each formed from one of the three ______ on the incisal edges of newly erupted incisors

A

facial development lobes

43
Q

perikymata are the numerous minute ______ on the enamel of newly erupted permanent teeth

A

horizontal ridges

44
Q

the central groove is located at the _____ center of the tooth sulcus and runs _____

A

buccolingual, mesiodistally

45
Q

at each end of the central groove are ________ or triangular fossa grooves

A

fossa developmental grooves

46
Q

supplemental grooves are small irregular grooves on the _____; do not occur at the junction of the lobes or major portions of the tooth

A

occlusal surface

47
Q

a fissure is a very narrow cleft or crevice at the depth of any ______caused by incomplete_____ of enamel during development

A

groove , fusion

48
Q

a fossa is a small hallow or depression found between _______ on the lingual surface of anterior teeth

A

marginal ridges

49
Q

pits often occur at the depth of a ______ where two or more ______ join

A

fossa, grooves

50
Q

the furcation is the place on multi-rooted teeth where the root trunk divides into _______; called a bifurcation on two rooted teeth and trifurcation on three rooted teeth

A

separate roots

51
Q

the CEJ curvature is convex towards the _____ or ______ surface

A

incisal, occlusal

52
Q

In general, the amount of CEJ curvature is greater on the ______ surface than on the _____ surface of the same tooth, and the amount of curvature is greatest on _______ and diminishes as you move ______

A

mesial, distal, central incisors, distally

53
Q

***anterior teeth have facial and lingual heights of contour in the _______ of the crown

A

cervical third

54
Q

***posterior teeth have heights of contour on the facial surface in the ______ of the crown and the lingual height of contour in the _______ of the crown

A

cervical third, middle third

55
Q

diastema is a space that exists between two adjacent teeth in the same arch not caused by a ____

A

missing tooth

56
Q

contact areas are not normally located in the _______

A

cervical third

57
Q

on most teeth, the _____ contact is more cervical than the ____ contact

A

distal, mesial

58
Q

mesial contact areas of the central incisors are positioned more _____, where contacts of molars are located more _____

A

incisally, cervically

59
Q

when viewing anterior teeth from the incisal view, contacts are nearly centered ______

A

faciolingually

60
Q

when viewing posterior teeth from the occlusal view, contacts are often located slightly to the _______ of the tooth midline buccolinually

A

facial

61
Q

the interproximal space/interdental area is located ______ to the contact area and between two adjacent teeth

A

cervical

62
Q

in healthy mouths, the interdental papilla forms a triangular shape from the facial view but resembles a slightly sagging tent from the proximal view called the _____

A

col

63
Q

the ______ embrasure is usually larger than the _____ embrasure

A

lingual, facial

64
Q

most teeth are narrower on the ______ side than on the ____ side

A

lingual, facial

Restorative Dentistry (3 decks)

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