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51 terms

Dental Anatomy/Dentition

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Alveolar Process
The bone that surrounds and supports the teeth
Alveolus
The bony socket in which the tooth is held
Anterior
Toward the front
Apical Foramen
The natural opening at the end of the root
Buccal/Facial
Side facing cheek
Cementum
Tissue that covers the anatomic root
Cusp
Pointy surfaces of teeth
Deciduous
Baby Teeth
Dentin
Tissue underlying enamel and cementum
Dentition
The kind, number, and arrangement of teeth
Distal
Farthest from the midline
Enamel
Outermost covering of the crown
Eruption
Appearing in the mouth
Exfoliation
The shedding process of primary teeth
Frenulum Linguae
a fold under the tounge which limits movement
Gingiva
Gums
Incisal
Biting surface of front teeth
Interproximal
Area between two teeth
Labial
Facing the lip
Lingual
The surface that touches the tongue
Mandible
Lower Jaw
Maxilla
Upper Jaw
Mesial
Towards the midline
Midline
Pertaining to the middle
Occlusal
Biting surface of posterior teeth
Odontoblast
Cell in dental pulp which forms dentin
Periodontal Ligament
Holds tooth in the socket
Posterior
Towards the back
Pulp
Tissue that makes up the canal chamber; consists of nerves, vessels, capillaries
Quadrant
Left or right half of an arch
Retromolar Area
Space behind the last molar on the mandible; where upper and lower jaws meet
Salivary Gland
Glands which produce and secrete saliva
Succedaneous
Any permanent tooth that replaces baby teeth
Tuberosity
The most distal apsect of the maxilla
Sulcus
The space between the tooth and the gum (where popcorn husks tend to get lodged)
Crown
Portion of tooth covered by enamel. "Clinical crown" is portion of tooth that is visible in the mouth.
Primary Dentition Phase
Deciduous teeth; 6 months - 6 years. Begins at eruption of first tooth (normally mandibular central incisor)
Mixed Dentition Phase
Primary and permanent teeth; 6-12 years. Begins at eruption of permanent mandibular molar
Permanent Dentition Phase
Permanent teeth, 12 years - adult. Begins at shedding of last primary maxillary second molar
Permanent Dentition
32 teeth total; 16 on mandibular and maxillary arches. Numbered 1-32
Primary Dentition
20 teeth total; 10 on mandibular and maxillary arches. Labeled A-T. Referred to as baby, milk, and deciduous teeth
Incisors
Anterior teeth; single rooted, relatively sharp, thin edged, designed to cut food; lingual surface is shaped like a shovel to aid in guiding the food into the mouth
Canines
Known as cuspids; located at the "corner" of the arch; designed for cutting and tearing foods; longest teeth in the arch; most important teeth in mouth and hardest to extract
Premolars
Known as "bicuspids"; 4 maxillary and 4 mandibular; cross between canine and molars; designed for grasping and tearing;
Molars
Much larger than premolars, usually having four or more cusps; short, blunter cusps; most broad surface; designed for grinding and chewing; withstand the heaviest forces required for chewing
Proximal Surface
Surface of a tooth next to an adjacent tooth; mesial and distal surfaces are proximal surfaces
Embrasure
Triangular space between two proximal surfaces
Functional Occlusion
A person's actual bite
Centric Occlusion
Ideal bite
Malocclusion
"bad" bite (overbite, underbite)
Tooth Numbering Systems
1. Palmer Notation System
2. Federation Dentaire Internationale Numbering System
3. Universal Numbering System**