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Incisors
Single rooted teeth, located in the front of the mouth and designed to cut food
Canines (also known as “cuspids”)
Single rooted teeth, located at the “corner” of the arch, designed for tearing and cutting food. It has the longest root of the human teeth. It is also the most stable tooth in the mouth and usually last to be lost
Premolars (also known as “biscuspids”)
Have cusps for grasping and tearing food. It has a somewhat broad surface for grinding food
Molars
Have more cusps than other teeth in the mouth. Broad and short cusps translate into a wider chewing surface used for grinding hard masses of food
Mandibular Arch
Lower Arch- Movable
Maxillary Arch
Upper Arch- Not capable of movement and fixed to the skull
Occlusion
The contact between maxillary and mandibular teeth during function
Midline
An imaginary line which divides which divides wach arch into mirrored halves
Quadrants
Two arches that are divided into halves create four quadrants
Sextants
The dentition is sometimes divided into six parts
Anterior
Incisors and Canines
Posterior
Premolars and Molars
Labial Surface
Facial surface of anterior teeth closest to the lips
Buccal Surface
Facial surface of posterior teeth closest to the cheeks
Masticatory surface
Chewing Surface
Incisal Surface
Chewing surface of anterior teeth
Occlusal Surface
Chewing surface for posterior teeth
Lingual Surface
Surface closest to the tongue
Mesial Surface
Surface closest to the midline
Distal Surface
Surface farthest from the midline
Proximal Surface
Surface of a tooth facing the adjacent tooth
Interproximal Space
The area between adjacent tooth surfaces
Apical Third
Closest to the apex of the tooth
Apex
Middle third
Cervical Third
Closest to the Cervix (neck of the tooth)
Occlusocervical Division
Division parallel to the chewing surface of the tooth
Mesiodistal Division
Division lengthwise in a mesial-distal(front to back) direction
Buccolingual Division
Lengthwise division in facial-lingual direction