Module 3 Key Terms: Dental Anatomy Flashcards
(106 cards)
1
Q
Alveolar Socket
A
Cavity within the alveolar process that surrounds the root of a tooth.
2
Q
Anatomic Crown
A
Portion of the tooth that is covered with enamel
3
Q
Apex
A
Tapered end of each root tip
4
Q
Apical Foramen
A
Natural opening in the root.
5
Q
Cementum
A
Specialized, calcified connective tissue that covers the anatomic root of a tooth.
6
Q
Clinical Crown
A
That portion of the tooth that is visible in the oral cavity
7
Q
Dental Papilla
A
Gingivae between the teeth.
8
Q
Dental Sac
A
Connective tissue that envelops the developing tooth
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.
10
Q
Dentinal Fiber
A
Fibers found in dentinal tubules
11
Q
Dentinal Tubules
A
microscopic canals found in dentin.
12
Q
Deposition
A
The process by which the body adds new bone.
13
Q
Enamel
A
makes up the anatomic crown of the tooth, is the hardest material in the body.
14
Q
Eruption
A
Movement of a tooth into its functional position in the oral cavity.
15
Q
Exfoliation
A
The normal process of shedding the primary teeth.
16
Q
Hydroxyapatite
A
Mineral compound that is the principal inorganic component of bone and teeth
17
Q
Lamina Dura
A
Thin, compact bone that lines the alveolar socket.
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.
19
Q
Mandibular Arch
A
The lower jaw
20
Q
Masticatory Mucosa
A
Oral mucosa that covers the hard palate, dorsum of the tongue, and gingiva.
21
Q
Periodontium
A
Structures that surround, support, and are attached to the teeth.
22
Q
Primary Dentin
A
Dentin that forms before eruption and that makes up the bulk of the tooth
23
Q
Resorption
A
The body’s processes of eliminating existing bone or hard tissue structure.
24
Q
Succedaneous Teeth
A
Permanent teeth that replace primary teeth.
25
Alveolar Process
Portion of the maxillary bones that form the support for teeth of the maxillary arch.
26
Articular Disc
Cushion of dense, specialized connective tissue that divides the articular space into upper and lower compartments; also known as the meniscus.
27
Articular Eminence
Raised portion of the temporal bone just anterior to the glenoid fossa.
28
Buccal
(BUK-ul)
Region of the head that refers to structures closest to the inner cheek
29
Condyloid Process
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.
30
Foramen
A small round opening in a bone through which blood vessels, nerves, and ligaments pass; plural, foramina
31
Fossa
Wide, shallow depression on the lingual surfaces of anterior teeth
32
Glenoid Fossa
Area of the temporal bone where condyles of the mandible articulate with the skull.
33
Maxillary Tuberosity
Large, rounded area on the outer surface of the maxillary bones in the area of the posterior teeth.
34
Mental
Region of the head pertaining to or located near the chin
35
Nasal
Region of the head that pertains to or is located near the nose
36
Oral
Region of the head pertaining to or located near the mouth.
37
Orbital
Region of the head pertaining to or located around the eye.
38
Process
A prominence or projection on a bone
39
Temporal
Region of the head superior to the zygomatic arch.
40
Temporomandibular joint (TMJ)
(tem-puh-roe-man-DIB-yoo-lur)
Joint on each side of head that allows movement of the maMucogingival junctionndible.
41
Trigeminal Nerve
The nerve that is the primary source of innervation for the oral cavity.
42
Zygomatic
Region of the head pertaining to or located near the zygomatic bone (cheekbone)
43
Ala
Wing like tip of the outer side of each nostril; plural, alae.
44
Buccal Vestibule
Area between the cheeks and the teeth or alveolar ridge
45
Canthus
Fold of tissue at the corner of the eyelids.
46
Frenum
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
Gingiva
Masticatory mucosa that covers the alveolar processes of the jaws and surrounds the necks of the teeth; plural, gingivae.
48
Incisive Papilla
Pear-shaped pad of tissue that covers the incisive foramen.
49
Labia
The gateway to the oral cavity; commonly known as “lips.”
50
Labial commissure
The angle at the corner of the mouth where the upper and lower lips join.
51
Labial Frenum
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
Lingual Frenum
The thin fold of mucous membrane that extends from the floor of the mouth to the underside of the tongue
53
Mental Protuberance
Part of the mandible that forms the chin.
54
Mucobuccal Fold
Base of the vestibule where the buccal mucosa meets the alveolar mucosa
55
Mucogingival Junction
Distinct line of color change in the tissue where the alveolar membrane meets with attached gingivae.
56
Nasion
Midpoint between the eyes just below the eyebrows
57
Philtrum
Rectangular area from under the nose to the midline of the upper lip.
58
Tragus
Cartilaginous projection anterior to the external opening of the ear
59
Uvula
Pear-shaped projection at the end of the soft palate.
60
Vermilion Border
Darker-colored border around the lips
61
Vestibule
Space between the teeth and the inner mucosal lining of the lips and cheeks.
62
Angle's Classification
System developed by Dr. Edward H. Angle to describe and classify occlusion and malocclusion.
63
Anterior
Toward the front
64
Apical Third
Division of the root nearest the tip of the root.
65
Buccal Surface
Tooth surface closest to the inner cheek
66
Centric Occlusion
Maximum contact between the occluding surfaces of the maxillary and mandibular teeth.
67
Cervical Third
Division of the root nearest the neck of the tooth.
68
Concave
Curved inward
69
Contact Area
Area of the mesial or distal surface of a tooth that touches the adjacent tooth in the same arch.
70
Convex
Curved Outward
71
Curve of Spee
Curvature formed by the maxillary and mandibular arches in occlusion
72
Curve of Wilson
Cross-arch curvature of the occlusal plane.
73
Deciduous
Pertaining to first dentition of 20 teeth; often called “baby teeth” or primary teeth.
74
Dentition
Natural teeth in the dental arch
75
Distal Surface
Surface of tooth distant from the midline.
76
Embrasure
Triangular space in a gingival direction between the proximal surfaces of two adjoining teeth in contact
77
Facial Surface
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
Incisal Surface
biting surface of anterior teeth
79
Interproximal Space
The area between adjacent tooth surfaces.
80
Labial Surface
Facial surface closest to the lips.
81
Lingual Surface
Surface of mandibular and maxillary teeth closest to the tongue; also called palatal surface.
82
Malocclusion
Occlusion that is deviated from a Class I normal occlusion.
83
Mandibular Arch
The lower jaw
84
Maxillary Arch
The upper jaw
85
Mesial Surface
Surface of the tooth toward the midline
86
Mixed Dentition
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
Occlusal Surface
Chewing surface of posterior teeth.
88
Occlusion
The natural contact of the maxillary and mandibular teeth in all positions.
89
Permanent Dentition
The set of 32 secondary teeth
90
Primary Dentition
The first set of 20 primary teeth
91
Proximal Surfaces
The surfaces next to each other when teeth are adjacent in the arch.
92
Quadrant
One quarter of the dentition.
93
Sextant
One sixth of the dentition.
94
Succedaneous Teeth
Permanent teeth that replace primary teeth.
95
Bifurcation
Area in which two roots divide.
96
Canine Eminence
External vertical bony ridge on the labial surface of the canines.
97
Cingulum
Raised, rounded area on the cervical third of the lingual surface
98
Cusp
Major elevation on the masticatory surfaces of canines and posterior teeth.
99
Cusp of Carabelli
The fifth supplemental cusp found lingual to the mesiolingual cusp
100
Diastema
A space between two teeth
101
Fossa
Wide, shallow depression on the lingual surfaces of anterior teeth
102
Furcation
Area between two or more root branches.
103
Mamelon
Rounded enamel extension on the incisal ridges of incisors.
104
Marginal Ridge
Rounded, raised border on the mesial and distal portions of the lingual surfaces of anterior teeth and the occlusal table of posterior teeth.
105
Pegged Laterals
Incisors with a pointed or tapered shape
106
Trifurcation
Area in which three roots divide.
