Moca Abel Emanuel, Ciavoi Gabriela, Todor Bianca Ioana, Negruțiu Bianca Maria, Cuc Emilia Albinița, Dima Raluca, Moca Rahela Tabita, Vaida Luminița Ligia
Department of Dentistry, Faculty of Medicine and Pharmacy, University of Oradea, 10 Piața 1 Decembrie Street, 410073 Oradea, Romania.
Doctoral School of Biomedical Sciences, University of Oradea, 1 Universității Street, 410087 Oradea, Romania.
Children (Basel). 2022 Apr 16;9(4):567. doi: 10.3390/children9040567.
Dental age assessment is useful in various medical fields. The Demirjian method for dental age estimation is one of the most widely used in the field of pediatric dentistry. The aim of this study was to verify the accuracy of the Demirjian method in determining age in a sample of girls and boys from Oradea, Romania. This retrospective and radiographic study was based on the evaluation of 1006 panoramic radiographs, belonging to 1006 patients (431 boys and 575 girls) with ages between 3 and 13.9 years from the city of Oradea, Romania. They were collected from three private dental practices from Oradea and were analyzed between 1 September 2021, and 10 November 2021. The patients were distributed into 11 age groups, each group spanning over one year (e.g., 3−3.9, 4−4.9). For the assessment of dental age, the Demirjian method was used, which is based on the evaluation of the developmental stages of the lower left permanent teeth. The mean chronological age of the patients was 9.496 ± 2.218 years, and the mean dental age was 10.934 ± 2.585 years. The overestimation of dental age was obtained in all age groups for the entire sample. As such, dental age was higher than chronological age, with values varying from 0.34 years in the 3−3.9 years age group to 1.7 years in the 10−10.9 years age group. In girls, dental age was higher than chronological age, with values varying from 0.46 years in the 3−3.9 years age group to 1.73 years in the 11−11.9 years age group, while in boys, the values varied from 0.15 years in the first age group to 2.02 years in the 10−10.9 years age group. The comparison of the differences between chronological age and dental age according to the gender of the patients revealed that the distribution of the differences was nonparametric in both groups according to the Shapiro−Wilk test (p < 0.05). The differences between the groups were not significant according to the Mann−Whitney U test. However, larger differences were identified for boys (1.46 years) than girls (1.417 years), with an overestimation of the dental age. The Demirjian method overestimated the age of the children included in the investigated sample, with different values for the different age groups investigated, and requires adaptations.
牙齿年龄评估在多个医学领域都很有用。Demirjian牙齿年龄估计方法是儿童牙科领域应用最广泛的方法之一。本研究的目的是验证Demirjian方法在确定罗马尼亚奥拉迪亚市男孩和女孩样本年龄方面的准确性。这项回顾性影像学研究基于对1006张全景X光片的评估，这些X光片来自罗马尼亚奥拉迪亚市1006名年龄在3至13.9岁之间的患者（431名男孩和575名女孩）。它们是从奥拉迪亚的三家私人牙科诊所收集的，并于2021年9月1日至2021年11月10日进行分析。患者被分为11个年龄组，每个组跨度为一年（例如，3 - 3.9岁，4 - 4.9岁）。对于牙齿年龄的评估，使用了Demirjian方法，该方法基于对左下恒牙发育阶段的评估。患者的平均实际年龄为9.496 ± 2.218岁，平均牙齿年龄为10.934 ± 2.585岁。整个样本在所有年龄组中都出现了牙齿年龄的高估。因此，牙齿年龄高于实际年龄，数值从3 - 3.9岁年龄组的0.34岁到10 - 10.9岁年龄组的1.7岁不等。在女孩中，牙齿年龄高于实际年龄，数值从3 - 3.9岁年龄组的0.46岁到11 - 11.9岁年龄组的1.73岁不等，而在男孩中，数值从第一个年龄组的0.15岁到10 - 10.9岁年龄组的2.02岁不等。根据患者性别对实际年龄和牙齿年龄差异进行比较，结果显示根据Shapiro - Wilk检验，两组差异的分布均为非参数分布（p < 0.05）。根据Mann - Whitney U检验，两组之间的差异不显著。然而，发现男孩（1.46岁）的差异大于女孩（1.417岁），牙齿年龄存在高估。Demirjian方法高估了被调查样本中儿童的年龄，不同年龄组的高估数值不同，需要进行调整。
