Age Estimation Using the Pulp-to-Tooth Area Ratio in an Indian Population Using Cone-Beam Computerised Tomography...

Area of Science:

• Forensic Odontology
• Dental Age Estimation

Background:

• Age estimation is vital in forensic science for both living and deceased individuals.
• The pulp-to-tooth area ratio from periapical radiographs is a traditional non-invasive age estimation method.
• Cone-beam computed tomography (CBCT) offers advanced 3D imaging for dental age assessment.

Purpose of the Study:

• To estimate age using the pulp-to-tooth area ratio of four specific permanent maxillary teeth.
• Investigate the reliability of different tooth types for age estimation.

Main Methods:

• Ninety subjects aged 18–70 years were included in the study.
• Pulp-to-tooth area ratio was analyzed from periapical radiographs or CBCT scans.
• Linear regression analysis was used to assess correlations between age and the ratio, stratified by sex and tooth type.

Main Results:

• Correlation between actual and estimated age differed among tooth types.
• Strong positive correlation observed for maxillary right central incisor and maxillary right canine.
• Maxillary left canine showed a weaker positive correlation.

Conclusions:

• Maxillary right central incisor and maxillary right canine are the most reliable teeth for age estimation.
• Linear regression models demonstrated strong associations between age and pulp-to-tooth ratio for specific teeth in males and females.