Wagner Rebecca, Madea Burkhard, Doberentz Elke
Arch Kriminol. 2017 Jan;239(1-2):18-26.
Bite marks are rarely seen in forensic medical examinations. In most cases one can easily differentiate whether a bite mark is of human or animal origin due to the arched shape and crushed character of human bite marks. From a forensic point of view it is more interesting whether a dental imprint has been caused by an adult or a child, because children are often abused for a defensive statement. Two cases of bite injuries in children are presented. In the first case, a two-month-old infant was presented by pediatricians. The second case deals with a one-year-old boy who had allegedly been bitten several times by a two-year-old girl in a nursery school. A comparison could be performed between the bite mark impressions on the victim's skin (based on photographic documentation) and dental imprints of single teeth measuring the tooth width on the one hand and the intercanine distance on the other hand with the help of modeling wax plates. This procedure showed good correlations between the bite marks on the victim and the dental status of the biter. Especially for taking bite impressions on children, modeling wax plates are a simple, fast and cheap alternative to dental impression-taking.
咬痕在法医检查中很少见。在大多数情况下，由于人类咬痕的拱形形状和挤压特征，人们可以很容易地区分咬痕是来自人类还是动物。从法医角度来看，更有趣的是牙印是由成人还是儿童造成的，因为儿童经常因作出防御性陈述而受到虐待。本文介绍了两例儿童咬痕损伤案例。第一例中，儿科医生接诊了一名两个月大的婴儿。第二例涉及一名一岁男孩，据称他在幼儿园被一名两岁女孩咬了好几次。借助造型蜡板，可以将受害者皮肤上的咬痕印记（基于照片记录）与单个牙齿的牙印进行比较，一方面测量牙齿宽度，另一方面测量犬齿间距离。这一过程表明受害者身上的咬痕与咬人者的牙齿状况之间有良好的相关性。特别是对于采集儿童咬痕印记，造型蜡板是一种简单、快速且廉价的替代牙齿取模的方法。
