Elkhatib Amira Abdelhafeez, Yassin Randa, Mansour Shorouk, Hatata Nour S
Department of Pediatric Dentistry and Dental Public Health, Faculty of Oral and Dental Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt.
Department of Pediatric Dentistry and Dental Public Health, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
Oral Radiol. 2025 Sep 13. doi: 10.1007/s11282-025-00854-x.
To validate the accuracy of the Cameriere's method and a previous Egyptian formula for determining the dental age (DA) of Egyptian children living along the Mediterranean region, while also assessing the accuracy in applying the new regression formula that is tailored to the Mediterranean region.
This study analyzed a training sample of 440 orthopantomograms (OPGs) and a testing sample of 212 OPGs of children and adolescents aged 515 years. Dental age (DA) was calculated and compared to chronological age (CA) using various formulas. Cameriere's formula was used to create a new Egyptian formula specific to the Mediterranean region, and a linear regression model was used to evaluate all morphological variables as well as gender. The new Egyptian formula specific to the Mediterranean region was later compared to Cameriere's formula and a previous Egyptian formula.
The new Egyptian formula (Mediterranean region) for DA estimation (adjusted mean = 10.329, 95% CI 10.046, 10.611), highly matched the CA (adjusted mean = 10.331, 95%CI 10.033, 10.630, p = 1.00) showing no statistically significant difference. However, DA calculated by Cameriere's formula (adjusted mean = 9.469, 95% CI 9.236, 9.703, p < 0.001) as well as the previous Egyptian formula (adjusted mean = 10.000, 95%CI 9.729, 10.272, p < 0.001) significantly underestimated the age.
The new Egyptian formula is the most accurate for estimating dental age in Egyptian children living along the Mediterranean region and recommended as the first choice in forensic and clinical application for DA estimation in Egyptian children living along the Mediterranean.
验证卡梅里埃方法及之前一个埃及公式用于确定地中海沿岸埃及儿童牙龄（DA）的准确性，同时评估应用针对地中海地区定制的新回归公式的准确性。
本研究分析了440张5 - 15岁儿童及青少年的口腔全景片（OPG）作为训练样本，以及212张OPG作为测试样本。使用各种公式计算牙龄（DA）并与实际年龄（CA）进行比较。采用卡梅里埃公式创建了一个特定于地中海地区的新埃及公式，并使用线性回归模型评估所有形态学变量及性别。随后将特定于地中海地区的新埃及公式与卡梅里埃公式及之前的埃及公式进行比较。
用于DA估计的新埃及公式（地中海地区）（调整后均值 = 10.329，95%置信区间10.046，10.611）与CA高度匹配（调整后均值 = 10.331，95%置信区间10.033，10.630，p = 1.00），无统计学显著差异。然而，通过卡梅里埃公式计算的DA（调整后均值 = 9.469，95%置信区间9.236，9.703，p < 0.001）以及之前的埃及公式（调整后均值 = 10.000，95%置信区间9.729，10.272，p < 0.001）均显著低估了年龄。
新埃及公式在估计地中海沿岸埃及儿童牙龄方面最为准确，推荐作为地中海沿岸埃及儿童DA估计在法医和临床应用中的首选方法。
