Testing the Accuracy of an Age Estimation Method Using Radiographs of Permanent Mandibular Third Molar Teeth in a Thai Population

Q3 Health Professions Chiang Mai University journal of natural sciences Pub Date : 2022-07-11 DOI:10.12982/cmujns.2022.045

Pornpat Theerasopon, Kanyathorn Tiansuwan, Natthanan Srichaitan, Sichanad Norkaew, Chairat Charoemratrote, N. Srimaneekarn, Phuwadon Duangto

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Abstract

Abstract The aim of this study was to test the accuracy of an age estimation method using the radiographs of permanent mandibular third molar teeth in a Southern Thai population. Digital panoramic radiographs of 480 Thai samples (240 males and 240 females) aged from 8 to 23 years were selected and divided into 16 age groups. The permanent mandibular third molar teeth were separated into nine developmental stages according to the Demirjian et al. classification. The developmental stage was evaluated and then converted into a developmental score. Accuracy of the dental age estimation was tested using regression equations according to the Duangto et al. study. Our results showed that dental age was close to the chronological age within one year for both sexes. In conclusion, the age estimation equations according to the Duangto et al. study provide an accurate age estimation in a Southern Thai population. Keywords: Dental age estimation, Demirjian et al. classification, Mandibular third molar teeth, Thai population

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在泰国人群中使用恒常下颌第三磨牙射线照片测试年龄估计方法的准确性

摘要:本研究的目的是测试一种年龄估计方法的准确性，该方法使用的是泰国南部人群下颌恒磨牙的x线片。选取8 ~ 23岁泰国480例样本(男240例，女240例)的数字全景x线片，分为16个年龄组。根据Demirjian等人的分类，将下颌恒磨牙分为九个发育阶段。对发育阶段进行评估，然后将其转化为发育评分。根据Duangto等人的研究，使用回归方程检验牙龄估计的准确性。我们的研究结果表明，在一年内，男女的牙齿年龄接近实足年龄。总之，根据Duangto等人的研究，年龄估计方程提供了泰国南部人群的准确年龄估计。关键词:牙龄估计;Demirjian等人分类;下颌第三磨牙

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Chiang Mai University journal of natural sciences Health Professions-Health Professions (miscellaneous)

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1.70

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