Sharma Tamanna, Chaitan S M, Somayaji Nagaveni S, Mahajan Bela, Rajguru Jagadish P, Hajibabaei Sahar, Hegde Shilpa
Department of Oral Pathology and Microbiology, Himachal Dental College, Sundernagar, Himachal Pradesh, India.
Department of Pedodontics and Preventive Dentistry, Sri Siddhartha Dental College and Hospital, Tumkur, India.
J Family Med Prim Care. 2020 Jul 30;9(7):3236-3241. doi: 10.4103/jfmpc.jfmpc_545_20. eCollection 2020 Jul.
Palatal rugae are irregular and asymmetric mesenchymal ridges that extend in a lateral direction away from the incisive papilla and mid-palatine raphe. Their unique characteristics and environmental stableness justify their inclusion in forensic investigations. Dermatoglyphics or fingerprint patterns are epidermal ridges, which are genetically controlled and are specific to an individual. Hence they are used as a forensic tool.
The study aimed to assess the reliability of Rugoscopic and Dermatoglyphic patterns for gender identification.
A total of 200 subjects were recruited in this prospective study. All subjects were between the age range of 18 and 55 years. The subjects were categorized into 100 males and 100 females. Fingerprint dermatoglyphic patterns were recorded using stamp pad, ink, and A4 size white sheets. A subject's fingers were pressed onto the stamped ink pad and lightly pressed over a sheet of paper. Obtained patterns were coded and analyzed as per Galton's criteria into arch, loop, and whorl patterns. Palatal rugae patterns were obtained by making alginate impression material and impression trays. Obtained casts were analyzed for rugae pattern analysis using Kapali's classification. An unpaired t test was used as a statistical tool.
On analyzing dermatoglyphic patterns, the arch pattern was most common among male subjects, whereas loop pattern was found to be most common among females. On rugoscopic pattern analysis, Straight pattern was most frequent among males, whereas the circular pattern was common among females.
A statistically significant difference was noted between gender and rugoscopic patterns ( = 0.02) and dermatoglyphic patterns ( = 0.03).
腭皱襞是不规则且不对称的间质性嵴，从切牙乳头和腭中缝向外侧延伸。其独特的特征和环境稳定性使其适用于法医调查。皮纹或指纹图案是表皮嵴，由基因控制且因人而异。因此，它们被用作法医工具。
本研究旨在评估腭皱襞和皮纹图案在性别鉴定中的可靠性。
本前瞻性研究共招募了200名受试者。所有受试者年龄在18至55岁之间。受试者分为100名男性和100名女性。使用印台、墨水和A4尺寸的白纸记录指纹皮纹图案。将受试者的手指按压在印台上，然后轻轻按压在一张纸上。根据高尔顿标准对获得的图案进行编码和分析，分为弓型、箕型和斗型图案。通过制作藻酸盐印模材料和印模托盘获得腭皱襞图案。使用卡帕利分类法对获得的模型进行皱襞图案分析。采用独立样本t检验作为统计工具。
在分析皮纹图案时，弓型图案在男性受试者中最为常见，而箕型图案在女性中最为常见。在腭皱襞图案分析中，直线型图案在男性中最为常见，而圆形图案在女性中较为常见。
性别与腭皱襞图案（P = 0.02）和皮纹图案（P = 0.03）之间存在统计学上的显著差异。
