Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Van Yüzüncü Yıl University, 65080, Van, Turkey.
Department of Endodontics, Faculty of Dentistry, Van Yüzüncü Yıl University, Van, Turkey.
Clin Oral Investig. 2021 Aug;25(8):4833-4840. doi: 10.1007/s00784-021-03788-w. Epub 2021 Jan 18.
This study aimed to estimate the dental age (DA) using the London Atlas, Willems, and Nolla methods and to compare their accuracies.
The DA was estimated using the aforementioned methods on panoramic radiograms of a total of 919 Eastern Turkish patients aged 6-14 years, of whom 459 were female and 460 were male. The overestimation and underestimation values were determined in relation to the chronological age (CA) values. The paired t test was used to compare the mean DA and CA values. Multiple regression analysis was used to derive gender-specific formulations for the three methods.
The most accurate method for estimating the DA was the Willems method (mean prediction error 0.80), followed by the London Atlas (mean prediction error 0.83) and Nolla (mean prediction error 0.89) methods. Statistically significant differences were found only between the Willems and Nolla methods.
All three methods can be used for DA estimations of Eastern Turkish children.
Willems was the most suitable method for this patient sample. However, the London Atlas method may be preferred due to its practicability and comparable accuracy.
本研究旨在使用伦敦图谱法、Willems 法和 Nolla 法估算牙龄（DA），并比较它们的准确性。
对 919 名 6-14 岁的东土耳其患者的全景片使用上述方法估算 DA，其中 459 名为女性，460 名为男性。根据与实际年龄（CA）值的关系确定高估和低估值。采用配对 t 检验比较 DA 和 CA 的平均值。采用多元回归分析为三种方法分别推导出性别特异性公式。
估算 DA 最准确的方法是 Willems 法（平均预测误差 0.80），其次是伦敦图谱法（平均预测误差 0.83）和 Nolla 法（平均预测误差 0.89）。仅在 Willems 法和 Nolla 法之间发现统计学差异。
三种方法均可用于估算东土耳其儿童的 DA。
Willems 法最适合该患者样本。然而，由于实用性和可比较的准确性，伦敦图谱法可能更受欢迎。
