Gandhi Neha, Jain Sandeep, Kahlon Harkiranjot, Singh Arshdeep, Gambhir Ramandeep Singh, Gaur Akanksha
Department of Oral and Maxillofacial Pathology, Pacific Dental College and Hospital, Udaipur, Rajasthan, India.
Department of Public Health Dentistry, Pacific Dental College and Hospital, Udaipur, Rajasthan, India.
J Forensic Dent Sci. 2017 May-Aug;9(2):56-60. doi: 10.4103/jfo.jfds_15_16.
Forensic odontology is basically the science dealing with establishing identity by teeth and has played an important, often crucial, role in the identification of victims of mass disasters. Among all teeth, the mandibular canines are found to exhibit greatest sexual dimorphism. Hence, this study was undertaken to evaluate the effectiveness of mandibular canine index (MCI) in the determination of sex.
The study was conducted on 62 subjects (31 males, 31 females). Mesiodistal diameter of mandibular canines was measured with the help of digital Vernier calipers. Intercanine distance was measured with the help of a divider. The standard MCI value is used as a cut off point to differentiate males from females. Statistical analysis was done using t-test.
The width of mandibular canine was higher in males than in females, which was statistically significant. The left canine is found to exhibit greater sexual dimorphism, i.e., 7.62% as compared with right canine, i.e., 6.85%. The calculated standard MCI for both male and female was 0.247. With these calculations, the overall percentage of sex determination was 79.03%.
The ability to determine gender using Standard MCI was estimated to be 73.33% in males and 80% in females. It was concluded that with standard MCI, it was possible to detect sex for forensic purposes.
法医牙科学基本上是一门通过牙齿来确定身份的科学，在大规模灾难遇难者的身份鉴定中发挥了重要且往往至关重要的作用。在所有牙齿中，下颌尖牙的性别二态性最为明显。因此，本研究旨在评估下颌尖牙指数（MCI）在性别判定中的有效性。
本研究对62名受试者（31名男性，31名女性）进行。借助数字游标卡尺测量下颌尖牙的近远中径。使用两脚规测量尖牙间距离。标准MCI值用作区分男性和女性的分界点。采用t检验进行统计分析。
男性下颌尖牙的宽度高于女性，具有统计学意义。发现左侧尖牙的性别二态性更大，即7.62%，而右侧尖牙为6.85%。男性和女性计算出的标准MCI均为0.247。通过这些计算，性别判定的总体百分比为79.03%。
使用标准MCI判定性别的能力在男性中估计为73.33%，在女性中为80%。得出的结论是，利用标准MCI能够为法医目的检测性别。
