Dental Anatomy Terminology Flashcards

1
Q

Alveolus

A
The cavity (i.e. socket) in the alveolar process of the maxilla or mandible in which the root of a tooth is secured by the 
periodontal ligament
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2
Q

Alveolar Bone (or process)

A

The bony processes of the maxilla or the mandible that contain and support teeth. The main bony tissue of the maxilla and the mandible is called Basal bone

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3
Q

Line Angle

A

The angle formed by the junction of two tooth surfaces along a line

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4
Q

Point Angle

A

The angle formed by the junction of three tooth surfaces at a point

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5
Q

Anterior

A

Situated or placed toward the front of the oral cavity

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6
Q

Anteroposterior

A

From the front part of the oral cavity to the back

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7
Q

Apex

A

The terminal end or tip of a root

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8
Q

Apical

A

Toward the tip/apex of a tooth root

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9
Q

Arch

A

A structure having curved form like the curved form of the mandibular or maxillary arch

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10
Q

Articulate

A

The relating of upper and lower natural or artificial teeth to each other

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11
Q

Articulator

A

A mechanical device that stimulates the temporomandibular joints, the maxilla, and the mandible, and to which dental casts can be attached

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12
Q

Axial

A

Pertaining to the long axis of a tooth

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13
Q

Axis

A

A straight line around which a body can rotate

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14
Q

Bicuspid

A

Premolar

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15
Q

Buccal

A

Pertaining to or adjacent to the cheek

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16
Q

Canine

A

One of the four types of human teeth located between the lateral incisors and the first premolars.

The ______ are considered the cornerstones of the dental arch

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17
Q

Caries

A

The localized, progressive disease process that destroys the calcified, hard tissues of the natural tooth

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18
Q

Cementoenamel junction (CEJ)

A

The junction of enamel and cementum

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19
Q

Cementum

A

The hard, calcified tissue covering the root dentin of a tooth

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20
Q

Centric Occlusion

A

The end point of intercuspation when there is maximal contact and coincidence between upper and lower occlusal surfaces

The intercupsal position is the most closed occlusal position and is know as ________ __________ or maximum intercupsation (MIP)

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21
Q

Centric Relation

A

The relation of the mandible to the maxilla when the condyles are in the most unrestrained uppermost position in the glenoid fossa irrespective of vertical dimension or tooth position

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22
Q

Cervical

A

Pertaining to the neck area of a tooth

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23
Q

Cervical Line

A

A curved line around the neck of a tooth formed by the junction of the enamel and cementum

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24
Q

Cervix

A

The constricted portion (neck) of a tooth at the junction between the crown and root

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25
Q

Cingulum

A

The rounded convexity on the lingual side of an anterior tooth

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26
Q

Anatomic Crown

A

The part of a natural tooth covered by enamel extending from the incisal or occlusal portion of the tooth to the CEJ

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27
Q

Clinical Crown

A

The part of the tooth that protrudes from the gingival tissues and is visible in the oral cavity

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28
Q

Curve of Spee

A

The anterioposterior curved line that connects the cusp tips of the posterior teeth; lateral view

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29
Q

Curve of Wilson

A

The mediolateral curved line that connects the buccal and lingual cusp tips on each side of the arch; frontal view

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30
Q

Cusp Deciduous

A

A rounded elevation on the occlusal surface of a posterior tooth pertaining to the primary dentition

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31
Q

Dentinoenamel Junction (DEJ)

A

The junction of enamel and dentin

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32
Q

Dentin

A

The hard, calcified inter bulk of a natural tooth covered by enamel or cementum

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33
Q

Diastema

A

A space between two non-contacting adjacent teeth in the same dental arch

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34
Q

Distal

A

Away from the midline/median line posteriorly along the arch

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35
Q

Edentulous

A

Without teeth

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36
Q

Embrasure

A

A “V-shaped” space between two contacting adjacent teeth in the same dental arch.

The four resulting _________ are: Incisal/occlusal, gingival/cervical, facial/labial/buccal, and lingual/palatal

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37
Q

Enamel

A

The hard, calcified outer portion of a natural tooth covering the anatomic crown

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38
Q

Extrusion

A

The movement of a natural tooth beyond the natural plane of occlusion that may be accompanied by a similar movement of its supporting tissues

39
Q

Facial

A

The aspect of a tooth that faces externally, opposite of the lingual side, that includes the labial and buccal surfaces

40
Q

Fissure

A

A crevice in the groove, on the enamel surface of a tooth arising from the incomplete fusion of developmental lobes

41
Q

Fossa

A

A rounded depression or concavity on a tooth surface or bone

42
Q

Gingival

A

Pertaining to or relating to the gingiva, the fibrous tissue covered by mucous membrane surrounding the teeth

43
Q

Incisal

A

Toward or relating to the cutting edge of an incisor tooth

44
Q

Incisor

A

One of the four types of human teeth found in the anterior part of the maxilla and mandible.

Used for incision (cutting)

45
Q

Intercuspation

A

The meshing of the upper and lower teeth as they come in contact in centric occlusion

46
Q

Interproximal

A

Relating to the area between the proximal surfaces of adjacent natural teeth

47
Q

Labial

A

Toward or pertaining to the lips

48
Q

Lateral

A

Toward the right of left of the midsagittal plane

49
Q

Lingual

A

Next to or facing the tongue

50
Q

Lobe

A

A major developmental division or portion of a tooth

51
Q

Malocclusion

A

An abnormal relationship between the upper and lower teeth as they come into contact in centric occlusion

52
Q

Mamelon

A

A rounded of conical protuberance/projection on the incisal edge of a newly erupted incisor tooth.

53
Q

Mandible

A

The lower jawbone

54
Q

Mastication

A

The act of chewing food in its preparation for swallowing and digestion

55
Q

Maxilla

A

The upper jawbone

56
Q

Median

A

Pertaining to the midline that separates the oral cavity into right and left halves

57
Q

Mesial

A

toward or facing the midline anteriorly along the arch

58
Q

Molar

A

One of the four types of human teeth found in the posterior part of the maxilla and mandible

Used to grind and crush food

59
Q

Occlude

A

To bring the lower teeth in contact with the upper teeth

60
Q

Occlusal

A

Toward or relating to the chewing surface of posterior teeth

61
Q

Occlusion

A

Any relation of the maxillary teeth to the mandible teeth when they are in contact, centric or eccentric

62
Q

Horizontal Overlap/Overjet

A

The projection of the maxillary teeth of the mandibular teeth in a horizontal direction when the teeth are in occlusal contact

63
Q

Vertical Overlap/overbite

A

The extension of the maxillary anterior teeth over the mandibular anterior teeth in a vertical direction when the posterior teeth are in occlusal contact

64
Q

Palate

A

The roof of the mouth consisting of an anterior hard portion and a posterior soft portion that is movable

65
Q

Interdental Papilla

A

An extension of the gingiva that normally fills the triangular space/embrasure between two contacting adjacent teeth just below/cervical to the proximal contact area

66
Q

Incisive Papilla

A

A soft tissue elevation on the anterior palate directly posterior to the maxillary central incisors that covers the incisive foramen

67
Q

Periodontal Ligament (PDL)

A

A system of connective tissue fibers that surround the root of a natural tooth and attaches it to the alveolar bone socket

Part of the “attachment apparatus” which includes cementum, PDL, and alveolar bone

68
Q

Phonetics

A

The science of speech sounds

69
Q

Pit

A

A sharp, pointed depression in an enamel surface

Usually located at the intersection of two or more developmental lobes or grooves

70
Q

Posterior

A

Situated or placed toward the back of the oral cavity

71
Q

Premolar

A

One of the four types of human teeth located between the canine and molar teeth.

They usually have two (or three) cusps and replace the deciduous (primary) molars

72
Q

Protrusion

A

The forward extension of the mandible from a centric position

73
Q

Proximal Surface

A

The surface of a tooth which faces toward an adjoining tooth in the same arch

74
Q

Proximal Contact Area

A

The region or area on the mesial or distal side of a tooth that touches the adjacent tooth in the same arch

75
Q

Proximal Root Concavity

A

A depression extending longitudinally on the mesial or distal root surface of an anterior or posterior tooth

76
Q

Pulp

A

The vascular connective tissue with its associated nerve fibers that fills the pulp chamber and root canals of a natural tooth

77
Q

Alveolar Ridge

A

The linear bony elevation of the maxilla or the mandible that contains the sockets of the teeth

78
Q

Cusp Ridge

A

A linear elevation of tooth enamel that extends from the cusp tip mesially, distally, buccally, or lingually

79
Q

Incisal Ridge

A

The unworn incisal edge of a natural incisor tooth with its mamelons

80
Q

Marginal Ridge

A

The elevated linear crest of enamel that forms the mesial and distal borders of the occlusal surface of a posterior tooth; also the mesial and distal borders of the lingual surface of an anterior tooth

81
Q

Oblique Ridge

A

An elevated enamel prominence located on

maxillary molars that extends obliquely between the mesio-lingual and distobuccal cusps

82
Q

Transverse Ridge

A

An elevated enamel prominence that forms a more or less continuous ridge extending transversely between a buccal and lingual cusp straight across the occlusal surface

83
Q

Root

A

The part of a natural tooth covered by cementum and normally embedded in the alveolar bone

84
Q

Root Bifurcation

A

The part of the root system of a tooth in which the root trunk divides into two separate branches

85
Q

Root Trifurcation

A

The part of the root system of a tooth in which the root trunk divides into three separate branches

86
Q

Root Trunk

A

The part of the root of a tooth that lies between the CEJ or cervical line and the area where the root divides into separate branches (bifurcation or trifurcation)

87
Q

Sulcus

A

A “V-shaped” groove

88
Q

Torus

A

A projection of bone located either on the hard palate (palatinus) or on the lingual aspect of the mandible (mandibularis)

89
Q

Tubercle

A

A slightly rounded enamel elevation/projection on the surface of a natural tooth

90
Q

Tuberosity

A

The rounded, most distal aspect of the alveolar process in the maxilla

91
Q

Vertical Dimension of Occlusion (VDO)

A

The vertical dimension of the face when the teeth are making occlusal contact in centric occlusion

Usually measured from
the nose to the chin

92
Q

Vertical Dimension of Rest (VDR)

A

The vertical dimension of the face when the mandible is in a state of rest

93
Q

Perykymata

A

The lines of imbrication that appear on the facial side of a newly formed tooth that wear down and disappear over time