Age estimation from teeth using soft X-ray findings.

Soft X-ray photos of 68 premolars and 98 molars from 102 males and 64 females were taken to measure the length (mm) of the corona (CL) and the length of coronal pulp cavity (CPCL). Then the coronal index CI = CPCL x 100/CL after Ikeda et al. (1985) was computed for each tooth and regressed on the actual age of the individuals to obtain equations that allow estimation of age in unknown bodies and isolated teeth. The correlation coefficients ranged from -0.73 (female molars) to -0.89 (female premolars). No significant differences were observed in age estimation using sex-specific equations.