J Forensic Sci Toxicol | Volume 5, Issue 1 | Research Article | Open Access

Comparative Study of Age Estimation from Dentin Translucency and Coronal Pulp Cavity Index Using Digital Method

Neha K*, Shally G, Anubha G and Simranjit S

Department of Oral Pathology and Microbiology, Dr. Harvansh Singh Judge Institute of Dental Sciences and Hospital, India

*Correspondance to: Neha Kamboj 

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Aim: The aim of the study was to evaluate and compare the two parameters of age estimation i.e., radiovisiographic method for measuring coronal pulp cavity index and digital method for measuring dentin translucency. Study Design: Prospective study. Materials and Methods: The present study was carried out in 100 patients in the age ranges of 18- 25, 26-35, 36-45, 46-55, and 56 and above visiting clinical departments of the institute for various reasons like Orthodontics, Periodontics and Prosthodontics. The radiovisiographic examination of the tooth to be extracted was done. The tooth was then extracted under local anesthesia following this, the extracted teeth were cleaned of any debris with the help of hydrogen peroxide or under running water and then sectioned using micro motor hand piece, diamond disks and Arkansas stone. The teeth were sectioned longitudinally to 250 μm as close as possible to the central axis of the tooth. For measuring digital translucency each tooth section was placed on the scanner platen. Scanned images were imported to Adobe Photoshop software for viewing and measuring the extent of translucency. For the measurement of coronal pulp cavity index RVG images of the respective teeth were imported to the Adobe Photoshop software, a straight line was traced from the cementoenamel junction, which is the division between anatomical crown and root. Coronal Height (CH) was measured vertically straight from the cervical line to the tip of the highest cusp. Coronal Pulp Cavity Height (CPCH) was measured vertically from the cervical line to the tip of the highest pulp horn. The measurements were used to calculate the TCI of each tooth, which will then be calculated as follows: TCI = CPCH × 100/CH The measurements were displayed in millimeter. Results: Age was predicted based on Dentin translucency and Coronal pulp cavity index using linear regression analysis. Also, Pearson’s correlation coefficients obtained for both methods were noted. The difference between predicted and actual age was compared for both the indices. Based on the errors of estimated age, prediction cases between 5 years were more in Dentin translucency than coronal pulp cavity index. Moreover, R square value to predict age using dentin translucency (0.689) was higher than coronal pulp cavity index (0.591). Hence Dentin translucency was more suitable to predict age and was a better parameter than Coronal pulp cavity index. Conclusion: In our study we concluded that dentin translucency a better parameter in age estimation as there was a positive correlation between dentin translucency and age. When tooth the only clinical evidence available age can be determined reliably using the level of root dentin translucency.


Age estimation; Dentin translucency; Coronal pulp cavity index


Neha K, Shally G, Anubha G, Simranjit S. Comparative Study of Age Estimation from Dentin Translucency and Coronal Pulp Cavity Index Using Digital Method. J Forensic Sci Toxicol. 2023; 5(1): 1018..

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