Journal List > Korean J Leg Med > v.39(1) > 1087954

Korean J Leg Med. 2015 Feb;39(1):1-5. Korean.
Published online February 28, 2015.
© Copyright 2015 by the Korean Society for Legal Medicine
Drusini's and Takei's Methods for Age Estimation in Korean Adults
Eun-Gyo Jeong, Jun-Young Heo, Soo-Min Ok, Sung-Hee Jeong and Yong-Woo Ahn
Department of Oral Medicine, School of Dentistry, Pusan National University, Yangsan, Korea.

Correspondence to Yong-Woo Ahn. Department of Oral Medicine, School of Dentistry, Pusan National University, 49 Busandaehak-ro, Yangsan 626-815, Korea. Tel: +82-55-360-5241, Fax: +82-55-360-5234, Email:
Received January 17, 2015; Revised February 04, 2015; Accepted February 18, 2015.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


Estimation of an individual's age has received considerable attention in forensic science. Several methods have been described, and abundant results have been obtained and evaluated. Among the numerous methods for dental age prediction in adults, the progressive diminution of the coronal pulp cavity and dental attrition have been primarily used. Although the reliability of age estimation methods using teeth has been demonstrated, correlation between methods has not been reported. Therefore, the aim of this study was to evaluate concurrence between Drusini's methods. We reanalyzed the age of 107 patients (64 male, 43 female) using Drusini's method. The ages had been previously estimated as ranging from 24 to 69 years using Takei's method. Our results revealed a strong correlation between the two methods (r=0.762) and suggest both methods to be suitable for application in Korean individuals younger than 50 years old. A previous study has shown Takei's and Drusini's methods to be reliable for forensic purposes. The strong correlation between the two methods in the present study suggests that it would be reasonable to use the most appropriate method for age estimation dependent on oral state.

Keywords: Forensic dentistry; Age determination by teeth; Korea; Population; Matched-pair analysis


Fig. 1
Measurement of coronal height (CH) and coronal pulp cavity height (CPCH) performed on radiograph using Adobe Photoshop CS5 program.
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Table 1
Distribution of study samples according to age and gender
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Table 2
Correlation of Takei's and Drusini's methods for males and females by Karl Pearson's correlation coefficients technique
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Table 3
Correlation of Takei's and Drusini's methods for tooth types by Karl Pearson's correlation coefficients technique
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Table 4
Inter-rater reliability according to gender by Pearson's correlation coefficients technique
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Table 5
Correlation of Takei's and Drusini's methods for age groups by Pearson's correlation coefficients technique
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No potential conflict of interest relevant to this article was reported.

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