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Age estimation by pulp-to-tooth area ratio using cone-beam computed tomography: A preliminary analysis
Arpita Rai1, Ashith B Acharya2, Venkatesh G Naikmasur3
1Department of Oral Medicine and Radiology, Faculty of Dentistry, Jamia Millia Islamia, New Delhi, India.
Journal of Forensic Dental Sciences
|January 27, 2017
Summary
Age estimation using pulp-to-tooth area ratio (PTR) from cone-beam computed tomography (CBCT) scans shows promise. The axial plane at the cementoenamel junction (CEJ) provided the most significant correlation for age estimation in maxillary canines.
Area of Science:
- Forensic Odontology
- Dental Imaging
- Anthropology
Background:
- Age estimation is crucial in forensic science.
- Pulp-to-tooth area ratio (PTR) from radiographs is a conventional method.
- Cone-beam computed tomography (CBCT) offers advanced 3D dental imaging.
Purpose of the Study:
- To evaluate age estimation using PTR from maxillary canines via CBCT.
- To analyze PTR in different planes of the canine teeth.
Main Methods:
- Sixty subjects aged 20-85 years were included.
- PTR was calculated from mid-sagittal, mid-coronal, and axial CBCT sections.
- AutoCAD software was used for measurements; SPSS for analysis.
Main Results:
- PTR in the axial plane at the cementoenamel junction (CEJ) showed a significant correlation with age (r=0.32, P<0.05).
- Other planes and sections did not yield significant age correlations.
Conclusions:
- Axial plane PTR at the CEJ is a reliable indicator for age estimation in maxillary canines.
- Clearer pulp and tooth outline demarcation at the CEJ likely contributes to its significance.
