Dias Paulo Eduardo Miamoto, Beaini Thiago Leite, Melani Rodolfo Francisco Haltenhoff
Laboratório de Antropologia e Odontologia Forense (OFLAB-FOUSP), Departamento de Odontologia Social, Faculdade de Odontologia da Universidade de São Paulo, São Paulo, SP, Brazil.
J Forensic Sci. 2012 Sep;57(5):1361-4. doi: 10.1111/j.1556-4029.2012.02225.x. Epub 2012 Jul 16.
A tooth-like foreign body (FB) was found inside a sausage bread. Analysis aimed to investigate whether the FB was a tooth and its origin. The FB was measured, weighed, photographed, and radiographed. Macroscopic findings were suggestive of an anterior tooth. Histological slides of undecalcified cross-sections of the FB and samples of human and swine teeth were prepared. Histological features of the FB (in light microscopy, 125× magnification) were discrepant from human tissues. Compared histological analysis displayed majority of features consistent with a hypsodont swine tooth, probably a canine. Cellularized cementum in crown region, adjacent to the enamel, and shape of the cementocytes were the main criteria excluding the possibility of human origin of the FB. Scanning electronic microscopy and energy-dispersive spectroscopy were not performed because of fewer features to be analyzed and FB size. It was concluded that the FB may have been incorporated during meat grinding of the sausage.
在一个香肠面包内发现了一个牙齿状异物（FB）。分析旨在调查该异物是否为牙齿及其来源。对该异物进行了测量、称重、拍照和X光检查。肉眼观察结果提示为一颗前牙。制备了该异物未脱钙横断面的组织学切片以及人和猪牙齿的样本。该异物的组织学特征（光学显微镜下，放大125倍）与人组织不同。对比组织学分析显示，多数特征与高冠猪牙一致，可能是犬齿。牙冠区域与牙釉质相邻的细胞化牙骨质以及牙骨质细胞的形状是排除该异物为人源可能性的主要标准。由于待分析特征较少且异物尺寸较小，未进行扫描电子显微镜和能谱分析。得出的结论是，该异物可能是在香肠肉馅研磨过程中混入的。
