RT - Journal
TY - JOUR
A1 - Mathew, Deepu
A1 - Rajesh, S
A1 - Koshi, Elizabeth
A1 - Priya, Lakshmi
A1 - Nair, Amal
A1 - Mohan, Aparna
T1 - Adult forensic age estimation using mandibular first molar radiographs: A novel technique
YR - 2013/1/1
JF - Journal of Forensic Dental Sciences
JO - J Forensic Dent Sci
SP - 56
OP - 59
VO - 5
IS - 1
UL - http://www.jfds.org/article.asp?issn=0975-1475;year=2013;volume=5;issue=1;spage=56;epage=59;aulast=Mathew;t=5
DO - 10.4103/0975-1475.114552
N2 - **Objective:** To develop an independent procedure for estimating age for Indian individuals using radiographs of multi-rooted posterior teeth with accuracy needed in forensic age prediction. **Materials and Methods:** Orthopantomography (OPG) was obtained for 88 subjects. The subjects were divided into two sub sets; study subset (*n* = 60) which were used to find regression formula to calculate the age from pulp chamber height and test subset (*n* = 28) which were used to test the accuracy of this formula. **Results:** There was a statistically significant strong correlation between chronological age and pulp chamber crown root trunk height ratio (r = −0.56; *P* = 0.000). The regression equation for estimating the age, derived from the study subset was estimated age = −100.920 (PCTHR) +55.415. (PCTHR is the pulp chamber crown root trunk height ratio). This equation was applied on the test subset and there was no significant difference between estimated ages and chronological ages (*P* = 0.639). The mean absolute error (MAE) was 6.96 years, which was within acceptable error limits for forensic age estimation (<±10 years). **Conclusion:** The procedure developed to estimate the age using height reduction in pulp chamber was found to be fairly accurate to perform forensic age prediction in Indian individuals.
ER -