Abstract: Objective To study the accurate of Li Guozhen′s Percent Numeration and the Development Standard of Chinese Wrist Bone CHN Numeration of age estimation in 14-year-old females. Methods Fifty-one 14-year-old females from three middle schools in Loudi City in Hunan were selected randomly, whose left wrists were photographed with X-rays under the same condition. Skeletal age was estimated following the two numerations. The two skeletal ages were compared with each other and with chronological age. Results The skeletal age from Percent Numeration and CHN Numeration have no significance difference, P>0.05. And the skeletal ages of the two Numerations have no significance difference either, P>0.05. Conclusion The Percent Numeration and the CHN Numeration are still suited for age estimation in 14-year-old females.

Key words: forensic anthropology, skeletal age, chronological age