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  • Title: Facial soft tissue thicknesses for the Portuguese adult population.
    Author: Codinha S.
    Journal: Forensic Sci Int; 2009 Jan 30; 184(1-3):80.e1-7. PubMed ID: 19124207.
    Abstract:
    In recent years there has been an important increment of studies on the determination of facial soft tissue thicknesses for craniofacial identification purposes. In spite of this, there is no information on the particularities of the facial soft tissue depths for the Portuguese adult population. In order to address this lack, the soft tissue thicknesses of a Portuguese cadaver sample of 151 individuals, 103 males and 48 females with ages between 20 and 99 years old, autopsied at the South Branch of the National Institute of Legal Medicine, were measured using published needle puncture methods at 20 anatomical points. The stature and weight of all cadavers were determined and their body mass index (BMI) calculated. In order to prevent post-mortem distortion, soft tissue depths were assessed prior to the individual's autopsy in cadavers whose time of death did not exceed 24h. From these data, descriptive statistics were calculated and the average soft tissue depths were reported considering the BMI and the sex of the cadavers. In general, males were found to have greater soft tissue depths than females but some landmarks showed the opposite while others presented the same values for both sexes. In spite of this, almost all the differences among the sexes were found to be not statistically significant. The Post Hoc Gabriel test performed between the different BMI categories for mixed sexes and for each sex suggested BMI-related differences on the soft tissue thicknesses, although these vary considerably within and between the sexes with no linear correspondence between the anatomical landmarks. These results, point not only to the necessity to present data in accordance with the sexual dimorphism, but also to consider the BMI as an important variable for better results in the achievement of the likeness of the deceased individuals in both two-dimensional and three-dimensional facial approximations or superimpositions. Additionally, evidence of interpopulation differences in the average soft tissue thicknesses were observed by the comparison of this data set with similar studies from Caucasian groups with different geographic origin.
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