Indian Journal of Forensic Odontology

Backgrounds-Rai B reported that positive correlation between coronal displacement of cementum in impacted teeth and age  and proposed BR regression equation for Indian population .Materials and methods -This study was conducted on 100 impacted mandibular third molars extracted from napalase healthy patients , aged between 18 and 22 years. The buccolingual ground sections were prepared and the distance between the edges of enamel and cementum were measured with micrometer attached to a light microscope.Results and conclusion-The following regression equation was derived: Age=(Cementum-enamel distance)+543/29.7. A  significant correlation (r = 0.89) between age and coronal displacement of cementum in impacted teeth was calculated and a regression equation was derived for age estimation.

Keywords: Forensic science; Cementum; Enamel; Cemento–enamel junction; Fully impacted teeth; Mandibular third molar; Age estimation 

Age estimation in children is not only important in clinically dentistry but also in forensic dentistry. The orthopantomograph samples of  100 healthy children aged between 5-15 years were selected and applied to Cameriere et al regression equation. We observed underestimation of age in boys and overestimation in girls as compared to their chronological age.

Keywords Forensic dentistry, Cameriere et al regression equation, South Indian population.

No Abstract

Teeth are an excellent material for anthropological, genetic, odontologic and forensic investigations in living and non-living human populations. The aim of the present study was to estimate the age using molar’s attrition grading. A total of 235 molars were selected. The attrition conditions of the molar’s crown were analyzed. Linear equations for age estimation were derived by mean of regression analysis. There were highly statistically significant correlation between molar’s attrition and chronological age. When the age of individual remains completely unknown, the best estimates were provided by attrition of first molar.

Key words: Attrition, Age, Molar, Regression equation.

The aim of the present study to evaluate the applicability of the methods proposed by Nolla for estimation of dental age and its compared with chronological age. Orthopantograms of 200 patients, aged 70-195 months were selected to estimate the correlation between dental and chronological age. When the Nolla method were applied, the mean difference between chronological and estimated age for both genders were more than chronological age in girls while opposite in boys. There were significant correlation between chronological age and estimated dental age in bath genders.

Keywords: Orthopantograms, Nolla Method, dental age.

One major criterion for dental age estimation is the evaluation of secondary dentine formation. Teeth provide several useful points about an individual age. With advancing age secondary dentine is deposited along the wall of the dental pulp chamber leading to reduction in the size of the pulp cavity. This age related changes can be determined and measured from dental radiographs. The aim of this study was to explore if the measurements of area of pulp to tooth performed on periapical radiographs of individual tooth can be used for individual age estimation. The Periapical radiographs of maxillary and mandibular teeth, aged 7 to 69 years were selected. Dental maturity was evaluated by measuring the pulp tooth area ratio on all teeth. The ratios of the pulp/tooth area showed significant correlation to the chronological age and the coefficient of determination (r2) was highest in maxillary canine when an exponential or a linguistic regression model was constructed.

Key words: Pulp area; Tooth area; Secondary dentine; Periapical radiographs.

No abstract