Dwivedi Nidhi, Agarwal Akhil, Kashyap Bina, Raj Vineet, Chandra Shaleen
Department of Oral Pathology and Microbiology, Saraswati Dental College and Hospital, Lucknow, U.P., India.
J Forensic Dent Sci. 2013 Jan;5(1):22-7. doi: 10.4103/0975-1475.114554.
The study aims to develop latent lip prints on glass surface using fingerprint black powder and its comparison with standard lipstick prints and also determines the effectiveness of the technique.
This study included a total of 100 subjects, comprising of 50 males and 50 females with age ranging from 17 to 38 years. Latent lipprint was developed by pressing the lips against a glass slab with lips together and the print formed was developed by sprinkling the black finger print powder and transferred to a bond sheet. Subsequently, standard lipstick print was developed from the same subject. All the samples were coded and graded according to the patterns suggested in the literature.
Out of 100 latent prints only 29 prints showed lip patterns in all four quadrants. The percentage matching with self lipstick print of good latent prints ranged from 25% to 100% and those of random prints ranged from 8% to 92%. Quadrant wise matching ranged from 52.67% to 57.67%. Statistically significant difference was observed between males and females.
The study demonstrates the usefulness of latent lip print in personal identification.
本研究旨在利用指纹黑粉在玻璃表面显影潜在唇印，并将其与标准口红印进行比较，同时确定该技术的有效性。
本研究共纳入100名受试者，其中男性50名，女性50名，年龄在17至38岁之间。通过将嘴唇并拢压在玻璃板上形成潜在唇印，然后撒上黑色指纹粉使形成的唇印显影，并转移到债券纸上。随后，从同一受试者身上获取标准口红印。所有样本均按照文献中建议的模式进行编码和分级。
在100个潜在唇印中，只有29个唇印在所有四个象限中都显示出唇纹图案。良好潜在唇印与自身口红印的匹配百分比在25%至100%之间，随机唇印的匹配百分比在8%至92%之间。按象限匹配的范围在52.67%至57.67%之间。观察到男性和女性之间存在统计学上的显著差异。
本研究证明了潜在唇印在个人识别中的有用性。
