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Dental Assisting 1 & 2 > Module 3 Key Terms: Dental Anatomy > Flashcards

Module 3 Key Terms: Dental Anatomy Flashcards

1
Q

Alveolar Socket

A

Cavity within the alveolar process that surrounds the root of a tooth.

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2
Q

Anatomic Crown

A

Portion of the tooth that is covered with enamel

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3
Q

Apex

A

Tapered end of each root tip

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4
Q

Apical Foramen

A

Natural opening in the root.

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5
Q

Cementum

A

Specialized, calcified connective tissue that covers the anatomic root of a tooth.

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6
Q

Clinical Crown

A

That portion of the tooth that is visible in the oral cavity

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7
Q

Dental Papilla

A

Gingivae between the teeth.

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8
Q

Dental Sac

A

Connective tissue that envelops the developing tooth

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9
Q

Dentin

A

Hard portion of the tooth that surrounds the pulp and is covered by enamel on the crown and by cementum on the root.

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10
Q

Dentinal Fiber

A

Fibers found in dentinal tubules

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11
Q

Dentinal Tubules

A

microscopic canals found in dentin.

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12
Q

Deposition

A

The process by which the body adds new bone.

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13
Q

Enamel

A

makes up the anatomic crown of the tooth, is the hardest material in the body.

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14
Q

Eruption

A

Movement of a tooth into its functional position in the oral cavity.

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15
Q

Exfoliation

A

The normal process of shedding the primary teeth.

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16
Q

Hydroxyapatite

A

Mineral compound that is the principal inorganic component of bone and teeth

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17
Q

Lamina Dura

A

Thin, compact bone that lines the alveolar socket.

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18
Q

Lining Mucosa

A

Mucous membrane that covers the inside of the cheeks, vestibule, lips, soft palate, and underside of the tongue and acts as a cushion for underlying structures.

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19
Q

Mandibular Arch

A

The lower jaw

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20
Q

Masticatory Mucosa

A

Oral mucosa that covers the hard palate, dorsum of the tongue, and gingiva.

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21
Q

Periodontium

A

Structures that surround, support, and are attached to the teeth.

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22
Q

Primary Dentin

A

Dentin that forms before eruption and that makes up the bulk of the tooth

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23
Q

Resorption

A

The body’s processes of eliminating existing bone or hard tissue structure.

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24
Q

Succedaneous Teeth

A

Permanent teeth that replace primary teeth.

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25
Q

Alveolar Process

A

Portion of the maxillary bones that form the support for teeth of the maxillary arch.

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26
Q

Articular Disc

A

Cushion of dense, specialized connective tissue that divides the articular space into upper and lower compartments; also known as the meniscus.

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27
Q

Articular Eminence

A

Raised portion of the temporal bone just anterior to the glenoid fossa.

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28
Q

Buccal
(BUK-ul)

A

Region of the head that refers to structures closest to the inner cheek

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29
Q

Condyloid Process

A

The posterior process of each ramus; articulates with a fossa in the temporal bones to form the temporomandibular joint; also known as the mandibular condyle.

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30
Q

Foramen

A

A small round opening in a bone through which blood vessels, nerves, and ligaments pass; plural, foramina

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31
Q

Fossa

A

Wide, shallow depression on the lingual surfaces of anterior teeth

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32
Q

Glenoid Fossa

A

Area of the temporal bone where condyles of the mandible articulate with the skull.

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33
Q

Maxillary Tuberosity

A

Large, rounded area on the outer surface of the maxillary bones in the area of the posterior teeth.

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34
Q

Mental

A

Region of the head pertaining to or located near the chin

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35
Q

Nasal

A

Region of the head that pertains to or is located near the nose

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36
Q

Oral

A

Region of the head pertaining to or located near the mouth.

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37
Q

Orbital

A

Region of the head pertaining to or located around the eye.

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38
Q

Process

A

A prominence or projection on a bone

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39
Q

Temporal

A

Region of the head superior to the zygomatic arch.

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40
Q

Temporomandibular joint (TMJ)
(tem-puh-roe-man-DIB-yoo-lur)

A

Joint on each side of head that allows movement of the maMucogingival junctionndible.

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41
Q

Trigeminal Nerve

A

The nerve that is the primary source of innervation for the oral cavity.

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42
Q

Zygomatic

A

Region of the head pertaining to or located near the zygomatic bone (cheekbone)

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43
Q

Ala

A

Wing like tip of the outer side of each nostril; plural, alae.

44
Q

Buccal Vestibule

A

Area between the cheeks and the teeth or alveolar ridge

45
Q

Canthus

A

Fold of tissue at the corner of the eyelids.

46
Q

Frenum

A

Band of tissue that passes from the facial oral mucosa at the midline of the arch to the midline of the inner surface of the lip; also called frenulum; plural, frenula.

47
Q

Gingiva

A

Masticatory mucosa that covers the alveolar processes of the jaws and surrounds the necks of the teeth; plural, gingivae.

48
Q

Incisive Papilla

A

Pear-shaped pad of tissue that covers the incisive foramen.

49
Q

Labia

A

The gateway to the oral cavity; commonly known as “lips.”

50
Q

Labial commissure

A

The angle at the corner of the mouth where the upper and lower lips join.

51
Q

Labial Frenum

A

Band of tissue that passes from the facial oral mucosa at the midline of the arch to the midline of the inner surface of the lip; also called frenulum; plural, frenula.

52
Q

Lingual Frenum

A

The thin fold of mucous membrane that extends from the floor of the mouth to the underside of the tongue

53
Q

Mental Protuberance

A

Part of the mandible that forms the chin.

54
Q

Mucobuccal Fold

A

Base of the vestibule where the buccal mucosa meets the alveolar mucosa

55
Q

Mucogingival Junction

A

Distinct line of color change in the tissue where the alveolar membrane meets with attached gingivae.

56
Q

Nasion

A

Midpoint between the eyes just below the eyebrows

57
Q

Philtrum

A

Rectangular area from under the nose to the midline of the upper lip.

58
Q

Tragus

A

Cartilaginous projection anterior to the external opening of the ear

59
Q

Uvula

A

Pear-shaped projection at the end of the soft palate.

60
Q

Vermilion Border

A

Darker-colored border around the lips

61
Q

Vestibule

A

Space between the teeth and the inner mucosal lining of the lips and cheeks.

62
Q

Angle’s Classification

A

System developed by Dr. Edward H. Angle to describe and classify occlusion and malocclusion.

63
Q

Anterior

A

Toward the front

64
Q

Apical Third

A

Division of the root nearest the tip of the root.

65
Q

Buccal Surface

A

Tooth surface closest to the inner cheek

66
Q

Centric Occlusion

A

Maximum contact between the occluding surfaces of the maxillary and mandibular teeth.

67
Q

Cervical Third

A

Division of the root nearest the neck of the tooth.

68
Q

Concave

A

Curved inward

69
Q

Contact Area

A

Area of the mesial or distal surface of a tooth that touches the adjacent tooth in the same arch.

70
Q

Convex

A

Curved Outward

71
Q

Curve of Spee

A

Curvature formed by the maxillary and mandibular arches in occlusion

72
Q

Curve of Wilson

A

Cross-arch curvature of the occlusal plane.

73
Q

Deciduous

A

Pertaining to first dentition of 20 teeth; often called “baby teeth” or primary teeth.

74
Q

Dentition

A

Natural teeth in the dental arch

75
Q

Distal Surface

A

Surface of tooth distant from the midline.

76
Q

Embrasure

A

Triangular space in a gingival direction between the proximal surfaces of two adjoining teeth in contact

77
Q

Facial Surface

A

Tooth surface closest to the face. Facial surfaces closest to the lips are called labial surfaces, and facial surfaces closest to the inner cheek are called buccal surfaces; therefore, the term facial can be substituted for labial and buccal, and vice versa.

78
Q

Incisal Surface

A

biting surface of anterior teeth

79
Q

Interproximal Space

A

The area between adjacent tooth surfaces.

80
Q

Labial Surface

A

Facial surface closest to the lips.

81
Q

Lingual Surface

A

Surface of mandibular and maxillary teeth closest to the tongue; also called palatal surface.

82
Q

Malocclusion

A

Occlusion that is deviated from a Class I normal occlusion.

83
Q

Mandibular Arch

A

The lower jaw

84
Q

Maxillary Arch

A

The upper jaw

85
Q

Mesial Surface

A

Surface of the tooth toward the midline

86
Q

Mixed Dentition

A

A mixture of permanent teeth and primary teeth that occurs until all primary teeth have been lost, usually between the ages of 6 and 12

87
Q

Occlusal Surface

A

Chewing surface of posterior teeth.

88
Q

Occlusion

A

The natural contact of the maxillary and mandibular teeth in all positions.

89
Q

Permanent Dentition

A

The set of 32 secondary teeth

90
Q

Primary Dentition

A

The first set of 20 primary teeth

91
Q

Proximal Surfaces

A

The surfaces next to each other when teeth are adjacent in the arch.

92
Q

Quadrant

A

One quarter of the dentition.

93
Q

Sextant

A

One sixth of the dentition.

94
Q

Succedaneous Teeth

A

Permanent teeth that replace primary teeth.

95
Q

Bifurcation

A

Area in which two roots divide.

96
Q

Canine Eminence

A

External vertical bony ridge on the labial surface of the canines.

97
Q

Cingulum

A

Raised, rounded area on the cervical third of the lingual surface

98
Q

Cusp

A

Major elevation on the masticatory surfaces of canines and posterior teeth.

99
Q

Cusp of Carabelli

A

The fifth supplemental cusp found lingual to the mesiolingual cusp

100
Q

Diastema

A

A space between two teeth

101
Q

Fossa

A

Wide, shallow depression on the lingual surfaces of anterior teeth

102
Q

Furcation

A

Area between two or more root branches.

103
Q

Mamelon

A

Rounded enamel extension on the incisal ridges of incisors.

104
Q

Marginal Ridge

A

Rounded, raised border on the mesial and distal portions of the lingual surfaces of anterior teeth and the occlusal table of posterior teeth.

105
Q

Pegged Laterals

A

Incisors with a pointed or tapered shape

106
Q

Trifurcation

A

Area in which three roots divide.

Dental Assisting 1 & 2 (4 decks)

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