基于中国人群的影像学研究比较 Willem 牙龄评估方法。
Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic study.
机构信息
Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.
National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.
出版信息
BMC Oral Health. 2022 Sep 3;22(1):373. doi: 10.1186/s12903-022-02418-5.
BACKGROUND
The comparison of the two Willems dental age estimation methods (gender-specific (Willems I) and non-gender-specific (Willems II)) has not been fully investigated. Here we aimed to explore the applicability of the Willems dental age estimation in an Eastern Chinese population, which may cast light on the field of dental age estimation.
METHODS
A total of 1211 oral panoramic radiographs (582 boys and 629 girls) of the Chinese Han population aged 11-16 years old were collected. Dental ages (DAs) were calculated using the Willems method. Statistical significance was set at a p-value < 0.05. Age differences between chronological age (CA) and dental age were analyzed by paired t-tests and mean absolute error (MAE).
RESULTS
The differences between CA and DA determined by the Willems I method were + 0.44 and + 0.09 years for boys and girls, respectively. When using the Willems II method, these differences were + 0.57 and - 0.09. The MAEs of the Willems I method between DA and CA were 0.95 and 1.00 years in boys and girls, respectively. For Willems II, MAEs were 1.02 and 1.00 years in boys and girls.
CONCLUSIONS
This study showed that the Willems I method was more accurate than the Willems II method in the boys' group for predicting age from a whole scale. In comparison, Willems II is more competitive in the girls' group. Neither method may be satisfactory for 11-to-16-year-old teenagers in Eastern China.
背景
目前尚未充分研究两种 Willems 牙龄评估方法（性别特异性（Willems I）和非性别特异性（Willems II））之间的差异。本研究旨在探讨 Willems 牙龄评估方法在东亚人群中的适用性，这可能为牙龄评估领域提供新的视角。
方法
共收集了 1211 例中国汉族 11-16 岁青少年的口腔全景片（男 582 例，女 629 例）。采用 Willems 法计算牙龄（DA）。统计显著性水平设定为 p 值 < 0.05。采用配对 t 检验和平均绝对误差（MAE）分析 CA 与 DA 之间的年龄差异。
结果
Willems I 法确定的 CA 与 DA 之间的差异分别为男孩和女孩的+0.44 和+0.09 岁。使用 Willems II 法时，这些差异分别为+0.57 和-0.09。Willems I 法的 DA 与 CA 之间的 MAE 在男孩和女孩中分别为 0.95 和 1.00 岁。对于 Willems II，MAE 在男孩和女孩中分别为 1.02 和 1.00 岁。
结论
本研究表明，Willems I 法在预测整个年龄段的年龄时，比 Willems II 法在男孩组中更准确。相比之下，Willems II 法在女孩组中更具竞争力。对于中国东部地区 11 至 16 岁的青少年，这两种方法都可能不够理想。
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