García Jáuregui Lesly Yuliana
División de Odontología Legal y Forense, Universidad Científica del Sur. Lima, Perú.
Rev Cient Odontol (Lima). 2021 Oct 6;9(3):e067. doi: 10.21142/2523-2754-0903-2021-067. eCollection 2021 Jul-Sep.
To demonstrate the effectiveness to determine sex through cheiloscopy using the Vahanwala method in scanned lip impressions at the Tupac Amaru Apurímac Secondary Training Entity for Minors in Lima, Peru in 2017.
94 lip imprint samples were collected for the study, of which 44 were from male and 50 from females. The lip prints were made using black lipstick, adhesive tape, swabs, and bond paper. After the collection, a HP Deskjet 2540 scanner was used to obtain images of the lip prints, and these were analyzed with the Adobe Photoshop CS6 program. The following aspects were recorded and evaluated; type of labial grooves, distribution of the labial commissures, lip thickness and the relationship these aspects had in the differentiation of gender. Concordance between the result of the method and the real sex of the lip print was evaluated with the statistical-kappa test.
55.4% presented horizontal labial commissures in both sexes, 45.5% of the males presented medium lip thickness, while 34.0% of the females presented mixed type lip thickness. In relation to lip furrows, class IV furrows predominated in 59.2% of men, with class I and II furrows being found in 72.0% of women.
The Vahanwala method is effective for sex determination using scanned lip impressions.
验证2017年在秘鲁利马图帕克·阿马鲁阿普里马克未成年人中等培训机构，通过使用瓦汉瓦拉方法进行唇纹检查，在扫描的唇印中确定性别的有效性。
收集94个唇印样本用于该研究，其中44个来自男性，50个来自女性。唇印使用黑色口红、胶带、棉签和绘图纸制作。收集后，使用惠普Deskjet 2540扫描仪获取唇印图像，并使用Adobe Photoshop CS6程序进行分析。记录并评估以下方面：唇沟类型、唇角分布、嘴唇厚度以及这些方面在性别区分中的关系。使用统计kappa检验评估该方法的结果与唇印真实性别的一致性。
55.4%的男女均呈现水平唇角，45.5%的男性嘴唇厚度中等，而34.0%的女性呈现混合型嘴唇厚度。关于唇纹，59.2%的男性以IV类纹为主，72.0%的女性有I类和II类纹。
瓦汉瓦拉方法对于使用扫描唇印进行性别鉴定是有效的。
