Digital Dentistry, Master degree program, Sao Leopoldo Mandic Faculty, Sao Paulo, Brasil.
Research Institute, Faculty of Dentistry, University of Zulia. Maracaibo, Venezuela.
J Forensic Odontostomatol. 2022 Apr 30;40(1):20-33.
the mandible undergoes changes in morphology and density related to the aging process. These changes are measured by radiomorphometric indices that allow inferring bone density indirectly. Also, the age estimation process in adults is challenging since the modifications in the anatomical structures are gradual and require long intervals of time to be noticeable.
this study aimed to evaluate the usefulness of radiomoformometric indices of the mandible in age estimation in adults. The sample consisted of 230 digital panoramic radiographs of individuals of both genders (115 men and 115 women), with chronological ages between 20 and 81 years, where radiomorphometric indices were obtained in the premolar region and the mandible ramus, using the software ImageJ. An analysis of variance was conducted considering individuals' gender and age group classification categories with Tukey's post hoc test.
a downward trend was observed in means indices values for the older age groups, showing lower values for females. Based on the interaction detected between gender and age groups, multiple regression models were applied to estimate age. These showed a better adjustment for males between 50 and 59 years (R2=82,85%) and males over 60 (R2=80,16%).
the radiomorphometric indices used in this study allowed to infer age from 50 years onwards in males.
下颌骨的形态和密度会随着年龄的增长而发生变化。这些变化可以通过放射形态计量学指标来测量，这些指标可以间接推断骨密度。此外，成年人的年龄估计过程具有挑战性，因为解剖结构的变化是渐进的，需要很长时间才能被注意到。
本研究旨在评估下颌骨放射形态计量学指标在成年人年龄估计中的有用性。该样本由 230 名男性和 230 名女性的数字化全景射线照片组成（115 名男性和 115 名女性），年龄在 20 至 81 岁之间，使用 ImageJ 软件在磨牙区和下颌骨分支处获得放射形态计量学指标。对考虑个体性别和年龄组分类类别的方差分析进行了 Tukey 事后检验。
观察到年龄较大组的平均值指标值呈下降趋势，女性的平均值指标值较低。基于性别和年龄组之间检测到的相互作用，应用多元回归模型来估计年龄。这些模型在 50 至 59 岁的男性（R2=82.85%）和 60 岁以上的男性（R2=80.16%）中表现出更好的调整。
本研究中使用的放射形态计量学指标可用于推断男性 50 岁以上的年龄。
