Padmavathi B N, Makkad Ramanpal Singh, Rajan S Y, Kolli Gopi Krishna
Department of Oral Medicine and Radiology, Darshan Dental College and Hospital, Loyara, Udaipur, Rajasthan, India.
J Forensic Dent Sci. 2013 Jul;5(2):123-8. doi: 10.4103/0975-1475.119780.
Although lip prints have been used as an evidence for human identification in forensic science, there exists a doubt about its role in gender determination.
The present study was designed for documenting common patterns, as well as their variation in the study population, with objective of evaluating uniqueness of the lip print pattern among the study population, as well as to evaluate the possibility of gender determination.
Two hundred and thirty five lip prints were collected from volunteers among out patients of Darshan Dental College and Hospital, as well as community dental care camps of rural areas around Udaipur.
Lip prints were recorded with transparent overlay and transferred on to a bond paper. It was then photographed using a Canon EOS 55OD 16 mega pixel digital camera. Software Picasa 3.6 and Microsoft Picture Manager were used to digitally enhance the quality and magnify the image bearing the groove pattern. Lip prints were later analyzed.
Pearson chi square test was adopted for statistical analysis and probability (P value) was calculated.
In our study, none of the lip prints were identical, thus confirming the role of lip prints in individual identification. Dots, reticular and complex patterns were significant in gender determination.
尽管唇纹已被用作法医学中人类识别的证据，但人们对其在性别判定中的作用仍存疑虑。
本研究旨在记录常见唇纹模式及其在研究人群中的变异情况，以评估研究人群中唇纹模式的独特性，并评估性别判定的可能性。
从达尔尚牙科学院和医院的门诊患者以及乌代布尔周边农村地区的社区牙科保健营的志愿者中收集了235份唇纹。
用透明覆盖物记录唇纹，然后转移到绘图纸上。随后使用佳能EOS 550D 1600万像素数码相机进行拍照。使用软件Picasa 3.6和Microsoft Picture Manager对图像质量进行数字增强并放大带有纹路图案的图像。之后对唇纹进行分析。
采用Pearson卡方检验进行统计分析并计算概率（P值）。
在我们的研究中，没有两份唇纹是相同的，从而证实了唇纹在个体识别中的作用。点状、网状和复杂模式在性别判定中具有重要意义。
