Rekhi Amit, Marya Charu Mohan, Nagpal Ruchi, Oberoi Sukhvinder Singh
Dept. of Public Health Dentistry, Sudha Rustagi College of Dental Sciences & Research, India.
J Forensic Odontostomatol. 2014 Jul 1;32(1):15-23.
The stature or height of an individual is useful for assisting in forensic identifications. Teeth can act as a valuable tool for stature estimation when only the skull is available. Carrea's index estimates the stature of a person from the dimensions of lower anterior teeth. The aim of this study was to assess the reliability of the Carrea's index in an Indian population. Data was collected from plaster models of 125 undergraduate students for examination. Each hemiarch was considered separately equaling 250 inferior hemi-arches, which were divided according to the dental alignment into normal, crowded and diastema and the measurements (Arch and Chord) were made with a 'divider caliper'. A statistically significant difference between the types of dental arch was obtained for both males and females with regards to the different dental alignments; where normal dentition (94.03%) obtained the highest success rates for males and crowded dentition (87.87%) for females. Statistically significant differences were also found between the types of arches for both right and left side (p < 0.001; p=0.004). The presence of diastema reduced the success rates when compared in terms of both sex and side of the arch. It was concluded that the Carrea ́s index is a reliable method for height estimation in arches with normal and crowded dentitions, useful for both sexes, and for both right and left side of the arch. However, the method was not reliable for hemiarches with a diastema.
个体的身高对于协助法医鉴定很有用。当仅获得头骨时，牙齿可作为估计身高的宝贵工具。卡雷亚指数根据下前牙的尺寸来估计一个人的身高。本研究的目的是评估卡雷亚指数在印度人群中的可靠性。从125名本科生的石膏模型收集数据进行检查。每个半牙弓单独考虑，共计250个下颌半牙弓，根据牙齿排列分为正常、拥挤和间隙型，并用“分度卡尺”进行测量（牙弓和弦长）。在不同牙齿排列方面，男性和女性的牙弓类型之间均获得了统计学上的显著差异；其中正常牙列（94.03%）在男性中成功率最高，拥挤牙列（87.87%）在女性中成功率最高。在牙弓的左右两侧类型之间也发现了统计学上的显著差异（p < 0.001；p = 0.004）。与按性别和牙弓侧别比较时，间隙的存在降低了成功率。得出的结论是，卡雷亚指数是一种可靠的方法，可用于估计正常和拥挤牙列牙弓的身高，对男女以及牙弓的左右两侧均有用。然而，该方法对于有间隙的半牙弓不可靠。
