کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6551579 160412 2016 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Aspartic acid racemization in dentin of the third molar for age estimation of the Chaoshan population in South China
ترجمه فارسی عنوان
ریسک سازی اسیدپارشی اسید در دنتین مولر سوم برای تخمین سن جمعیت چاهان در جنوب چین
کلمات کلیدی
رضایتمندی، ارزیابی سن، مولر سوم، جمعیت چاوشان،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Aspartic acid racemization in teeth has been increasingly used to estimate chronological age with a considerably high accuracy in forensic practice. The Chaoshan population in South China is relatively isolated in geography, and has specific lifestyle and dietary inhibits. It is still unknown whether this method is suitable for this population. The aim of this study was to analyze the relationship between chronological age and the d/l aspartic acid ratio in dentin in the third molar tooth of the Chaoshan population. Fifty-eight non-carious third molar teeth (31 mandibles and 27 maxillae), from 58 living individuals of known age (24 males and 34 females), were retrieved. Dentin was extracted from these teeth. The d- and l-aspartic acids in dentins were separated and detected by high performance liquid chromatography (HPLC). Linear regression was performed between the d/l aspartic acid ratio of dentins and chronological age. Results showed that the correlation coefficient (r) was 0.969, and the mean absolute error (MAE) was 2.19 years, its standard deviation (SD) was ±1.53 years, indicating excellent correlation. There was no significant difference in racemization rates of dentin between sexes (P = 0.113, F = 2.6), or between mandibles and maxillae (P = 0.964, F = 0.000). Results indicate that the ratio of the d and l forms of aspartic acid of dentins, in the third molar, is closely correlated with chronological age, special lifestyle do no obviously affect the accuracy of the age estimations by aspartic acid racemization of the dentin in the third molar and that aspartic acid racemization in the third molar dentin can be used as an accurate method to estimate chronological age in the Chaoshan population in South China.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forensic Science International - Volume 266, September 2016, Pages 234-238
نویسندگان
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