Digitized morphometric analysis of dental pulp of permanent mandibular second molar for age estimation of Davangere population

Abstract Objective The aim of the present study is to estimate the age of Davangere population by evaluating the pulp to tooth area ratio (PTR) by using digitized intraoral periapical radiographs of permanent mandibular second molar. Methods 400 intraoral periapical radiograph (IOPA) of permanent ma...

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Bibliographic Details
Published in:Journal of forensic and legal medicine 2016-04, Vol.39, p.85-90
Main Authors: Kumar, Nerella Narendra, Panchaksharappa, Mamatha Gowda, Annigeri, Rajeshwari G
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age Determination by Teeth - methods
Age differences
AUTOCAD
Dental Pulp - diagnostic imaging
Dental Pulp - growth & development
Dentition, Permanent
Digitization
Female
Forensic radiography
Forensic sciences
Humans
Image Processing, Computer-Assisted
India
IOPA
Linear Models
Male
Mandible
Mandibular 2nd molar
Middle Aged
Molar - diagnostic imaging
Molar - growth & development
Pathology
Prospective Studies
PTR
Regression analysis
Young Adult
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Summary:Abstract Objective The aim of the present study is to estimate the age of Davangere population by evaluating the pulp to tooth area ratio (PTR) by using digitized intraoral periapical radiographs of permanent mandibular second molar. Methods 400 intraoral periapical radiograph (IOPA) of permanent mandibular 2nd molar of both the sexes aged 14–60 years were used. Digital camera was used to image the radiographs. Images were computed and PTR was calculated by AUTOCAD software. Intra and Inter observer variability was also assessed. Regression analysis was used to estimate the age of an individual by taking PTR as dependent variable. Results The mean PTR of males and females was 0.10 ± 0.02 and 0.09 ± 0.02 respectively. Negative correlation was observed, when age was compared with PTR {r = −0.441, −0.406 & −0.419 among males, females and total subjects (p 
ISSN:1752-928X
1878-7487
DOI:10.1016/j.jflm.2016.01.019