Testing international techniques for the radiographic assessment of third molar maturation.
Testing international techniques for the radiographic assessment of third molar maturation.
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DOI：
10.4317/jced.58916
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发表时间：
2021-12
影响因子：
--
通讯作者：
De Carli JP
中科院分区：
文献类型：
--
作者：
Sartori V;Franco A;Linden MS;Cardoso M;de Castro D;Sartori A;Silva C;Trentin M;De Carli JP
采用国际先进的年龄估计技术评估第三磨牙的放射学成熟度。 该研究分析了2009年至2020年期间在帕索丰多/RS/巴西大学牙科学院接受治疗的1，062名患者的全景X光照片。患者被分为15.00和23.99岁之间的年龄，对于每个X线片，第三磨牙被分为从1到10的阶段，随后应用Gunst等人提出的公式之一。一个二分变量，表明每个人是年轻还是大于18岁，从个人的实足年龄计算。Logistic回归模型进行了调整，以评估是否第三磨牙阶段与个人的年龄相关。 估计年龄与实际年龄之间的误差指标显示，18-18.9岁和17-17.9岁年龄组的平均误差分别接近于零。男性个体在牙齿矿化方面较早，但就该方法的适用性而言，性别之间没有显着差异。ROC曲线显示，单颗第三磨牙年龄估计的分析给出了最大的70.4%的可靠性。 在本研究中测试的技术的中等性能证明未来的国家特定的校正，以改善第三磨牙成熟度的影像学评估的年龄估计。 关键词：牙龄估计，法医牙科学，放射学，第三磨牙。
To assess the radiographic third molar maturation with internationally developed techniques for age estimation. The study analyzed 1,062 panoramic radiographs of patients treated at the School of Dentistry of the University of Passo Fundo/RS/Brazil, between 2009 and 2020. The patients were separated into ages between 15.00 and 23.99 years and, for each radiograph, the third molars were classified into stages from 1 to 10, with the subsequent application of one of the formulae proposed by Gunst et al. A dichotomous variable indicating whether each individual was younger or older than 18 was calculated from the chronological age of the individuals. A logistic regression model was adjusted to assess whether the third molar stages are correlated with the age of individuals. The error indicators between estimated and chronological ages showed that mean errors closer to zero are seen in the 18-18.9 and 17-17.9 age groups, respectively. Male individuals were earlier in terms of dental mineralization but there were no significant differences between sexes regarding the applicability of the method. The ROC curve shows that the analysis of a single third molar for age estimation gives a maximum of 70.4% reliability. The moderate performance of the technique tested in the present study justify future country-specific corrections to improve age estimation from the radiographic assessment of third molar maturity. Key words:Dental age estimation, forensic dentistry, radiology, third molar.