Komuro T, Tsutsumi H, Takahashi T, Tsutsumi D, Shibata H
Department of Legal Medicine, Nihon University School of Dentistry, Tokyo, Japan.
Nihon Hoigaku Zasshi. 1996 Dec;50(6):390-9.
Findings obtained from dental charts and from radiograph taken one year later for the same individuals were examined and classified according to different criteria. Similarities between the two sources investigated by the canonical correlation method. The results obtained were as follows: 1. The correlation coefficient and the squared multiple correlations (R2) were calculated. Consequently, high similarities were seen between the two sources for the mandibular anterior teeth [sequence: see text], maxillary incisor teeth [sequence: see text], mandibular and maxillary first premolar teeth [sequence: see text], and the corresponding teeth of the same jaws. 2. Three roots showed high elucidative values by the canonical correlation method. The first root was understood to be the mandibular incisor factor, the second the maxillary incisor factor, and the third the first premolar factor. This seemed to indicate, that the similarities between the two sources in these regions were very high. 3. A study of the similarities between the two sources was done based on the individual scores of canonical variable loadings calculated in this analysis. High similarities were seen at [sequence: see text] in category 1 (intact & C1) for chart findings and category 1'(intact, C1-C3 & resin filling) for radiographic findings: at [sequence: see text] in category 2 (C2-C4, inlay & filling of repair) for chart findings and category 3'(stump of tooth) for radiographic findings; and at [sequence: see text] in category 3 (complete crown, jacket crown & post crown) for chart findings and category 3'(stump of tooth) for radiographic findings. 4. The present results suggest that if proper case in taken, one set of information can serve as a substitute for the other. In personal identification, higher efficiency may be achieved if this is borne in mind.
对从牙片以及一年后为同一批个体拍摄的X光片中获得的结果进行了检查，并根据不同标准进行了分类。通过典型相关分析方法研究了这两种来源之间的相似性。得到的结果如下：1. 计算了相关系数和多元相关平方（R2）。因此，在下颌前牙[顺序：见原文]、上颌切牙[顺序：见原文]、下颌和上颌第一前磨牙以及同一颌骨的相应牙齿方面，两种来源之间呈现出高度相似性。2. 三个根通过典型相关分析方法显示出较高的阐释值。第一个根被认为是下颌切牙因子，第二个是上颌切牙因子，第三个是第一前磨牙因子。这似乎表明，这些区域中两种来源之间的相似性非常高。3. 基于本次分析中计算出的典型变量载荷的个体得分，对两种来源之间的相似性进行了研究。在图表结果的第1类（完整&C1）和X光片结果的第1'类（完整、C1 - C3和树脂充填）中，在[顺序：见原文]处观察到高度相似性；在图表结果的第2类（C2 - C4、嵌体和修复充填）和X光片结果的第3'类（残根）中，在[顺序：见原文]处观察到高度相似性；在图表结果的第3类（全冠、甲冠和桩冠）和X光片结果的第3'类（残根）中，在[顺序：见原文]处观察到高度相似性。4. 目前的结果表明，如果采用适当的病例，一组信息可以替代另一组信息。在个人身份识别中，如果牢记这一点，可能会实现更高的效率。
