Radiological Evaluation of the Accuracy of Demirjian, Nolla, and Willems Methods for Dental Age Estimation in 3-17-Year-Old Iranian Children.

IF 2.6 3区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY BioMed Research International Pub Date : 2024-07-03 eCollection Date: 2024-01-01 DOI:10.1155/2024/8783660
Benjamin Pliska, Azam Nahvi, Nikta Pakdaman, Sepideh Dadgar, Mehdi Aryana, Farhad Sobouti
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Abstract

Background: The stage of tooth formation is one of the most reliable indicators for predicting a patient's developmental age by radiographs. This study compared the accuracy of three distinct dental age estimation methods (Demirjian, Nolla, and Willems) in children aged 3-17 in the northern Iranian population. Methods: This cross-sectional study examined panoramic radiographs of 434 children aged 3-17 from Mazandaran Province, Iran, who had teeth 31-37 present on the left mandible. This study employed the Demirjian, Nolla, and Willems methods to estimate the dental age of the sample and compare it with the chronological age. The data were analyzed using SPSS v16. A paired t-test was used to compare chronological and dental ages. The Pearson correlation was used to correlate the chronological and dental ages. The errors of different methods were compared using the Wilcoxon test. P values < 0.05 were considered significant for all tests except Wilcoxon. For Wilcoxon, a P value < 0.017 was considered significant. Results: The three methods presented differing mean estimated ages. The Demirjian method delivered the highest mean, and all three methods differed significantly when compared in pairs. The results showed that the Demirjian method overestimated chronological age by 0.25 years (P < 0.001) in girls and 0.09 years (P = 0.28) in boys. The Willems method underestimated chronological age by 0.05 years (P = 0.47) in girls and 0.12 years (P = 0.13) in boys. The Nolla method underestimated chronological age by 0.41 years (P < 0.001) in girls and 0.40 years (P < 0.001) in boys. The accuracy of each method varied with the patient's age. Conclusion: According to the findings, the Willems method outperformed the Demirjian method, and the Demirjian method exceeded the Nolla method for estimating dental age in Iranian children aged 3-17. Overall, the Demirjian method overestimated the age of the study population, whereas the other two underestimated it.

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从放射学角度评估 Demirjian、Nolla 和 Willems 三种方法对 3-17 岁伊朗儿童牙齿年龄估计的准确性。
背景:牙齿形成阶段是通过射线照片预测患者发育年龄的最可靠指标之一。本研究比较了三种不同的牙齿年龄估计方法(Demirjian、Nolla 和 Willems)在伊朗北部 3-17 岁儿童中的准确性。方法:这项横断面研究检查了伊朗马赞达兰省 434 名 3-17 岁儿童的全景 X 光片,这些儿童的左下颌有 31-37 颗牙齿。本研究采用 Demirjian、Nolla 和 Willems 方法估算样本的牙齿年龄,并与实际年龄进行比较。数据使用 SPSS v16 进行分析。采用配对 t 检验来比较计时年龄和牙齿年龄。皮尔逊相关法用于将年代年龄和牙齿年龄相关联。使用 Wilcoxon 检验比较不同方法的误差。除 Wilcoxon 检验外,其他检验的 P 值均小于 0.05 为显著。在 Wilcoxon 检验中,P 值小于 0.017 即为显著。结果三种方法得出的平均估计年龄各不相同。Demirjian 方法的平均值最高,所有三种方法在成对比较时都有显著差异。结果显示,Demirjian 法高估了女孩的实际年龄 0.25 岁(P < 0.001),高估了男孩的实际年龄 0.09 岁(P = 0.28)。Willems 方法低估了女孩的实足年龄 0.05 岁(P = 0.47)和男孩的实足年龄 0.12 岁(P = 0.13)。诺拉法低估了女孩 0.41 岁(P < 0.001)和男孩 0.40 岁(P < 0.001)的实足年龄。每种方法的准确性随患者年龄的变化而变化。结论研究结果表明,在估计伊朗 3-17 岁儿童的牙齿年龄方面,Willems 方法优于 Demirjian 方法,而 Demirjian 方法优于 Nolla 方法。总体而言,Demirjian 方法高估了研究对象的年龄,而其他两种方法则低估了年龄。
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来源期刊
BioMed Research International
BioMed Research International BIOTECHNOLOGY & APPLIED MICROBIOLOGY-MEDICINE, RESEARCH & EXPERIMENTAL
CiteScore
6.70
自引率
0.00%
发文量
1942
审稿时长
19 weeks
期刊介绍: BioMed Research International is a peer-reviewed, Open Access journal that publishes original research articles, review articles, and clinical studies covering a wide range of subjects in life sciences and medicine. The journal is divided into 55 subject areas.
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