Nolla Method (1960)
Definition
Ten-stage radiographic scoring of tooth calcification used for paediatric age estimation.
- Year introduced
- 1960
- Stages
- 10, radiographic tooth calcification scoring
- Application
- Paediatric age estimation
Common questions
Why is the Nolla method suited to subadult age estimation?+
It scores crown and root calcification visible on a dental radiograph, a process that continues predictably through childhood and adolescence long after skeletal fusion methods stop being useful, giving it a wide effective age range for subadults.
Does the Nolla method perform equally well across different populations?+
Calcification timing shows some population variation, so many jurisdictions apply population-specific reference standards derived from local samples rather than relying on Nolla's original data alone for medico-legal age estimation.
Related terms
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- 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
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- Deciduous Dentition
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- Demirjian Method (1973)
- Childhood age estimation using radiographic stage-scoring (A to H, eight stages) of the seven permanent left mandibular teeth.
- 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).
- 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.