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Demirjian Method (1973)

Definition

Childhood age estimation using radiographic stage-scoring (A to H, eight stages) of the seven permanent left mandibular teeth.

Published
1973
Stages used
A to H (eight stages)
Teeth scored
Seven permanent left mandibular teeth
Applies to
Childhood age estimation

Common questions

Why does the Demirjian method use only the left mandibular teeth?+

Restricting scoring to one standardised set of teeth on one side keeps the radiographic view and scoring consistent between examiners and avoids the extra exposure and variability of scoring the full dentition.

What is the main limitation cited against the 1973 Demirjian method today?+

Its original scoring tables were built from a Franco-Canadian reference sample, so applying them to other populations without local calibration can bias the resulting age estimate.

Related terms

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Cameriere Method (2007)
Adult age estimation using the pulp-to-tooth area ratio measured on periapical radiographs of canines.
Canine
Single-cusped tooth for tearing and gripping. One per quadrant. Often the last anterior tooth to be lost in old age.
Cheiloscopy
Study of lip prints (Greek cheilos, lip; skopein, to examine). The furrow system on human lips was first described by anthropologist R....
Deciduous Dentition
The first set of 20 teeth, also called primary or milk teeth, that erupt from approximately six months and are progressively replaced...
Dental Formula
Per-quadrant notation of tooth types in the order Incisors.Canines.Premolars.Molars. Human deciduous 2.1.0.2, permanent 2.1.2.3.
Gustafson Method (1950)
Adult age estimation using six histological and morphological criteria (Attrition, Periodontosis, Secondary dentine, Cementum apposition, Root resorption, Transparency of root), each scored...
Incisor
Chisel-shaped anterior tooth for cutting. Two per quadrant (central and lateral) in both dentitions.
Molar
Multi-cusped posterior tooth for grinding. Two per quadrant deciduous, three per quadrant permanent (third molar is the wisdom tooth).
Nolla Method (1960)
Ten-stage radiographic scoring of tooth calcification used for paediatric age estimation.
Permanent Dentition
Second set of 32 teeth. First permanent molar erupts at 6 years, third molar (wisdom) at 17 to 25 years. Dental formula...
Premolar (Bicuspid)
Two-cusped tooth for grinding and tearing. Two per quadrant in permanent dentition only; absent in deciduous.

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