Department of Pediatric Dentistry, School of Dentistry, Çanakkale Onsekiz Mart University, Çanakkale, Turkey.
Department of Pediatric Dentistry, School of Dentistry, Marmara University, Istanbul, Turkey.
Arch Oral Biol. 2022 Feb;134:105325. doi: 10.1016/j.archoralbio.2021.105325. Epub 2021 Nov 28.
The aim of the study was to determine the dental age for the evaluation of tooth development in children with molar-incisor hypomineralization (MIH) by using the Willems method, Cameriere-European formula, and London Atlas.
Panoramic radiographs of 308 children between the ages of 6-13 diagnosed with MIH and the same number of sex- and age-matched children without MIH were evaluated by two different examiners using the Willems method, Cameriere-European formula, and London Atlas. The mean difference between chronological age and dental age in both groups was calculated for each sex and age. The mean absolute error was used to determine the accuracies of the Willems method, Cameriere-European formula, and London Atlas.
There was a statistically significant difference found only in Willems method in dental age estimation between the groups with and without MIH (P = 0.001). In the evaluation performed with Cameriere-European formula and London Atlas, which are more accurate methods for dental age estimation in both groups, no statistically significant difference was found in dental age estimation between the two groups (P = 0.322, P = 0.290, respectively). There was a statistically significant intense linear correlation for three methods in both groups (P < 0.001).
MIH, which is a developmental enamel defect, does not affect dental age and tooth development since there was no significant difference between groups with and without MIH according to the evaluations made with accurate dental age estimation methods.
本研究旨在通过使用 Willems 法、Cameriere-European 公式和 London 图谱，确定用于评估患有磨牙-切牙釉质发育不全（MIH）儿童牙齿发育的牙龄。
对 308 名年龄在 6-13 岁之间的患有 MIH 的儿童和相同数量的性别和年龄匹配的无 MIH 的儿童进行全景 X 光检查，由两名不同的检查者使用 Willems 法、Cameriere-European 公式和 London 图谱进行评估。计算每组儿童的实际年龄和牙龄之间的平均差值。使用平均绝对误差来确定 Willems 法、Cameriere-European 公式和 London 图谱的准确性。
仅在 Willems 法中发现患有和不患有 MIH 的两组之间的牙龄估计存在统计学显著差异（P=0.001）。在使用 Cameriere-European 公式和 London 图谱进行的评估中，这两种方法对于两组的牙龄估计都更为准确，在两组之间的牙龄估计中未发现统计学显著差异（P=0.322，P=0.290）。在两组中，三种方法均存在统计学显著的强线性相关性（P<0.001）。
MIH 是一种发育性牙釉质缺陷，不会影响牙龄和牙齿发育，因为根据准确的牙龄估计方法进行评估时，患有和不患有 MIH 的两组之间没有显著差异。
