用于无牙义齿佩戴者法医鉴定的腭皱纹图案数字匹配。

IF 1.5 4区 医学 Q2 MEDICINE, LEGAL
Forensic Science, Medicine and Pathology Pub Date : 2025-03-01 Epub Date: 2024-06-24 DOI:10.1007/s12024-024-00852-1
Javier A Rojas-Torres, Sandra López-Lázaro, Joan Viciano, Gabriel M Fonseca
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引用次数: 0

摘要

在法医鉴定中识别无牙受害者是一项重大挑战。据报道,使用假牙复制和比较腭部Rugae(PR)模式对于识别无牙者至关重要,但目前还没有有效的规程来执行这一程序。在这项研究中,我们开发并验证了一种用于上部义齿内表面石膏模型制作的新方法,以及涉及焦点堆叠照片和参考刻度的规程。38 名无牙受试者参加了研究,获得了患者(PM)的石膏模型,并对他们的假牙(AM)进行了标准化处理。使用标准照明对 AM/PM 模型进行突出显示和拍摄,每个模型使用不同的 Z 聚焦拍摄十张照片,并使用管状水平仪和模型粘土对准 PR 垂直于摄影轴的位置。使用堆叠技术对图像进行处理,并由三位观察者使用 Adobe® Photoshop® 通过建议的协议对图像进行分析。分析结果基于观察者内部和观察者之间的一致性水平,置信区间为 95%。这项研究表明,从参与者及其假牙上获得的腭鲁盖(PR)和上颌形态匹配结果具有高精度的观察者内和观察者间一致性(k = 1)。该方案简单、经济、精确。它使获取石膏模型的技术标准化,PR 的曝光和照相规程最大程度地减少了图像中的伪影,从而降低了出错的可能性,提高了记录技术和 PR 比对的可重复性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Digital matching of palatal rugae patterns for forensic identification in edentulous denture wearers.

Digital matching of palatal rugae patterns for forensic identification in edentulous denture wearers.

Identifying edentulous victims in forensic contexts poses a significant challenge. It has been reported that having a denture to reproduce and compare Palatal Rugae (PR) patterns is crucial for identifying edentulous individuals, yet there are no validated protocols for conducting this procedure. In this study, a new method was developed and validated for plaster molding of the internal surface of upper dentures, along with a protocol involving focus-stacked photographs and reference scales. Thirty-eight edentulous subjects participated in the study, obtaining plaster models of the patients (PM), and their dentures (AM) were standardized. The AM/PM model was highlighted and photographed with ten shots in different z-focuses for each model, using standard lighting and aligning the position of the PR perpendicular to the photographic axis using tubular spirit levels and modeling clay. The images were processed using the stacking technique and analyzed by three observers through the proposed protocol using Adobe® Photoshop®. The results were analyzed based on the intra-observer and inter-observer agreement levels, with a 95% confidence interval. This study demonstrated high-precision intra-observer and inter-observer agreement (k = 1) in the matching of Palatal Rugae (PR) and maxillary morphology obtained from participants and their dentures. The protocol is simple, cost-effective, and precise. It enables standardization of the technique for obtaining plaster models, and the exposure of PR and photographic protocol minimizes the presence of artifacts in the images, thereby reducing the likelihood of errors and promoting the reproducibility of both the recording technique and the comparison of the PR.

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来源期刊
Forensic Science, Medicine and Pathology
Forensic Science, Medicine and Pathology MEDICINE, LEGAL-PATHOLOGY
CiteScore
3.90
自引率
5.60%
发文量
114
审稿时长
6-12 weeks
期刊介绍: Forensic Science, Medicine and Pathology encompasses all aspects of modern day forensics, equally applying to children or adults, either living or the deceased. This includes forensic science, medicine, nursing, and pathology, as well as toxicology, human identification, mass disasters/mass war graves, profiling, imaging, policing, wound assessment, sexual assault, anthropology, archeology, forensic search, entomology, botany, biology, veterinary pathology, and DNA. Forensic Science, Medicine, and Pathology presents a balance of forensic research and reviews from around the world to reflect modern advances through peer-reviewed papers, short communications, meeting proceedings and case reports.
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