mandibular arch - lower arch in the dentition
marginal ridges - elevated areas of enamel that forms the mesial and distal borders of the lingual
surface on the anterior teeth and the mesial borders of the distal borders of the occlusal surface of the
posterior teeth
maxillary arch - upper arch ...
Chapter 9: Tooth Morphology
mandibular arch - lower arch in the dentition
marginal ridges - elevated areas of enamel that forms the mesial and distal borders of the lingual
surface on the anterior teeth and the mesial borders of the distal borders of the occlusal surface of the
posterior teeth
maxillary arch - upper arch in the dentition
mesial - surface of the tooth toward the midline
middle third - the root of the tooth Is divided onto imaginary thirds with the area between the
incisal third and the cervical third is called the middle third
midline (median line) - imaginary line that divides the dental arch in two halves
mixed dentition - the period when primary teeth and permanent teeth are in the dentition lasting
from approx. 6-12 years of age.`
molar - teeth used to chew food
nonsuccedaneous - teeth that do NOT replace primary teeth
oblique ridge - elevated area of enamel that extends obliquely across the occlusal of the tooth
occlusal - chewing surface of the molars and premolars teeth
, apical third - the root of the tooth is divided into imaginary thirds with the area nearest the apex
as the apical third
bicanineate - a larger single buccal cusp and a lingual cusp
bicupid - premolars; usually have 2 pointed or rounded mounds on the crown of the tooth
bifurcated - one tooth with two roots
buccal - the surface of the posterior tooth that is toward the cheeks
buccal groove - a linear depression forming a groove that extends from the middle of the buccal
surface to the occusal surface of the tooth
canine - (cuspid) ;slightly more bulky in size and aids in tearing food
canine eminence - a bony ridge covering the labial portion of the roots
central incisor - used to cut or bite the food that is ingested; first tooth from midline
cervical line - where the anatomical crown and root join
cervical third - the area on the crown of the tooth that is closest to the cervical area (or the
gingva) of a tooth
cingulum - a convex area on the lingual surface of the anterior teeth near the gingiva
clinical crown - exposed coronal portions of the crowns
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