Reliability of third molar development for age estimation in a Texas Hispanic population: a comparison study

Area of Science:

• Forensic Anthropology
• Odontology
• Human Biology

Background:

• Third molar development is a key indicator for age estimation.
• Previous studies established benchmarks for Caucasian populations.
• Hispanic populations exhibit distinct developmental patterns.

Purpose of the Study:

• To compare third molar (wisdom tooth) development timing in Hispanic individuals against established Caucasian data.
• To identify sex and jaw-specific differences in third molar maturation.
• To create predictive age estimation tables based on third molar developmental stages.

Main Methods:

• Utilized Demirjian's schematic to assess crown and root formation in third molars.
• Analyzed data from 950 Hispanic individuals aged 12-22 years.
• Calculated developmental stage timings and age ranges for prediction.

Main Results:

• Hispanic third molar development is statistically significantly faster (8-18 months) than American Caucasians.
• Earlier development observed in later stages (F-H).
• Males and maxillary third molars show accelerated development compared to females and mandibular molars, respectively.

Conclusions:

• Hispanic third molar development timing differs significantly from Caucasian norms.
• Established age prediction tables for Hispanic individuals based on specific developmental stages.
• Findings are crucial for forensic age assessment in Hispanic populations.