Department of Conservative Dentistry and Endodontics, Nair Hospital Dental College, Mumbai, India.
Department of Conservative Dentistry and Endodontics, College of Dental Sciences and Hospital, Indore, India.
Technol Health Care. 2024;32(4):2057-2067. doi: 10.3233/THC-230555.
Forensic odontology is a subfield of forensics that can assist in determining age, gender, and other demographic factors.
The focus of this research is to ascertain age by tooth volume ratio of permanent maxillary canines using a CBCT scan.
In this retrospective investigation, 1000 CBCT images were gathered and focused on only fully developed maxillary canines. For each of the maxillary canines, the researchers measured and calculated the volume of the pulp chamber, root canal, and entire tooth using the ITK Snap programme. The pulp volume to tooth volume ratio was computed. The equation AGE = 59.208 - (583.652 x pulp volume/tooth volume) was then used to compute age. The samples were divided into 5 age groups; 13-20, 21-30, 31-40, 41-50, and 51-60. The age was calculated for samples in each group and it was compared to the actual age.
Between individuals' actual age and computed age, the study discovered a statistically significant positive association. While groups 3, 4, and 5 demonstrated positive but weaker correlations (r= 0.854, r= 0.658, and r= 0.612, respectively), groups 1 and 2 displayed statistically significant strong positive correlations (r= 0.987 and r= 0.923, respectively). The average total discrepancy between the age that was computed and the actual age was 2.45 1.344.
The study found a statistically significant positive correlation between computed age and actual age, with the younger age groups 1 (13-20) and 2 (21-30) showing the strongest relationships. This underlines its potential success in court, particularly when dealing with young criminals.
法医牙科学是法医学的一个分支，可用于确定年龄、性别和其他人口统计学因素。
本研究的重点是通过 CBCT 扫描确定上颌恒尖牙的牙体积比来确定年龄。
在这项回顾性研究中，收集了 1000 个 CBCT 图像，仅关注完全发育的上颌尖牙。对于每颗上颌尖牙，研究人员使用 ITK Snap 程序测量和计算牙髓腔、根管和整个牙齿的体积。计算牙髓体积与牙体积的比值。然后使用公式 AGE = 59.208 - (583.652 x 牙髓体积/牙体积)计算年龄。将样本分为 5 个年龄组；13-20 岁、21-30 岁、31-40 岁、41-50 岁和 51-60 岁。计算每个组中样本的年龄，并将其与实际年龄进行比较。
在个体的实际年龄和计算年龄之间，研究发现存在统计学上显著的正相关关系。虽然第 3、4 和 5 组显示出正相关，但相关性较弱(r=0.854、r=0.658 和 r=0.612 分别)，第 1 和 2 组显示出统计学上显著的强正相关(r=0.987 和 r=0.923 分别)。计算年龄与实际年龄之间的平均总差异为 2.45 1.344。
研究发现计算年龄与实际年龄之间存在统计学上显著的正相关关系，年龄较小的第 1 (13-20)和第 2 (21-30)组显示出最强的关系。这突出表明它在法庭上具有潜在的成功，特别是在处理年轻罪犯时。
