Dental Anatomy Review

Comprehensive vocabulary flashcards covering dental anatomy concepts, tooth identification characteristics, eruption timelines, dentition periods, and sextant divisions.

Dental Sextants

The division of the upper and lower dental arches into six distinct segments: Sextants 1, 2, and 3 in the maxillary arch, and Sextants 4, 5, and 6 in the mandibular arch.

Facial Outline of Canine

Pentagonal in shape.

Proximal Outline of Canine

Triangular in shape.

Cervical Cross-Section of Canine

Oval in shape.

Bifurcated Root in Anterior Teeth

A condition most likely found in mandibular canines (teeth 22 or 27).

Mesially Leaning Root Apex

A root feature characteristic most likely seen in the mandibular canine.

Eruption of Permanent Maxillary Central Incisors

Erupts at 7–8 years (teeth 8 and 9); root completion occurs at age 10.

Eruption of Permanent Maxillary Lateral Incisors

Erupts at 8–9 years (teeth 7 and 10); root completion occurs at age 11.

Eruption of Permanent Mandibular Central Incisors

Erupts at 6–7 years (teeth 24 and 25); root completion occurs at age 9.

Eruption of Permanent Mandibular Lateral Incisors

Erupts at 7–8 years (teeth 23 and 26); root completion occurs at age 10.

Eruption of Permanent Mandibular Canines

Erupts at 9–10 years (teeth 22 and 27); root completion occurs between 12–14 years.

Eruption of Permanent Maxillary Canines

Erupts at 11–12 years (teeth 6 and 11); root completion occurs between 13 and 15 years.

Root Completion Timeline

Roots generally finish developing about 2–3 years after tooth eruption.

Distally Offset Cingulum

Anatomical feature found on maxillary central incisors, mandibular lateral incisors, and mandibular canines.

Proximal

Toward the mesial or distal surfaces; surfaces that are adjacent to another tooth.

Mesial

Toward the midline.

Distal

Away from the midline.

Primary Dentition Period

The period of dentition lasting from 6 months to 6 years of age.

Mixed Dentition Period

The period of dentition lasting from about 6 to 12 years of age.

Permanent Dentition Period

The period of dentition lasting from about 12 years of age through adulthood.

Incisal Angles

Morphological angles found on incisors; absent on canines, which have cusp slopes instead.

Facial View of Maxillary Canine

Features a wider, more prominent crown and a more prominent facial ridge compared to the mandibular canine.

Facial View of Mandibular Canine

Features a narrower and more symmetrical crown compared to the maxillary canine, more closely resembling an incisor.

Maxillary Lateral Incisor

The most variable tooth in permanent anterior dentition; commonly presents as peg-lateral, congenitally missing, or with a 'twisted' crown appearance, lingual pits, and lingual/gingival grooves.

Hutchinson’s Teeth

A dental abnormality caused by congenital syphilis (Treponema pallidum).

Single Antagonist Teeth

Teeth that contact only one other tooth on the opposing arch during occlusion; specifically the mandibular central incisor and maxillary 3rd molar.

Self-Cleansing Crown

A crown description specifically associated with the canine tooth.

Prominent Middle Facial Developmental Lobe

A developmental feature prominent in canine teeth.