Navegando por Palavras-chave "Palate"

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    Accuracy of Palate Shape as sex Indicator in Human Skull with Maxillary Teeth Loss
    (Soc Chilena Anatomia, 2008-12-01) Galdames, Ivan Claudio Suazo [UNIFESP]; Matamala, Daniela Zavando [UNIFESP]; Smith, Ricardo Luiz [UNIFESP]; Univ Talca; Universidade Federal de São Paulo (UNIFESP)
    In forensic medicine, diagnosis of sex is the first step in the identification of human skulls. A first approximation is carried out via the qualitative analysis of a series of morphological indicators of sexual dimorphism. Classical studies (Krogman & Iscan, 1986) described 14 indicators for the diagnosis of sex with an accuracy of 90%, and one of these indicators is the shape of the palate. This study analyzed the effect of the loss of teeth on the accuracy of the diagnosis of sex in Brazilians adult skulls, using the shape of the palate as an indicator. We used 98 skulls of adult Brazilians, comprising 35 females and 63 males with an average age of 39.3 years (SD 7.8). The skulls were classified into two groups, namely the fully edentulous maxilla and the partial edentulous maxilla. An inclusion criterion in the partial edentulous maxilla group was the presence of canine or their alveolus. The accuracy for the diagnosis of sex in the total sample was 75.5% (with a sensitivity of 88.8% for male skulls and 51.5% for female skulls), while it was slightly higher (76.9%) in the fully edentulous maxilla group with a sensitivity from 84% to 70% for both male and female skulls. However, the partial edentulous maxilla group presented lower values of accuracy of 74.5%, and a sensitivity of 90% for male skulls and 26% for female skulls. Thus, this work suggests that the accuracy of diagnosis of sex using the shape of the palate as an indicator of sexual dimorphism is not significantly affected by full edentulism; however, the presence of teeth favors the underestimation of the female skulls
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    Biometria e assimetria do palato ósseo humano em diferentes grupos etários
    (Universidade Federal de São Paulo (UNIFESP), 2006-01-01) Moreira, Rafael Saviolo [UNIFESP]; Smith, Ricardo Luiz [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    The purpose of this study was to evaluate hard palate asymmetry during development. The palates of 248 dry skulls were photographed and the digital images were processed with software. The skulls were divided in 7 groups: fetuses, newborns, infants, children, adolescents, adults and aged. Linear measures were obtained from great palatine foramen (GPF) to incisive fossa (INC) and to posterior nasal spine (PNS). Angular measures were obtained from the former landmarks plus the point on sutures intersection between maxillary and palatine bones (SR). Asymmetry was evaluated intra and inter-groups. All skulls showed some degree of right-left asymmetry in the hard palate. Regardless of hard palate asymmetry, none of the right-left side differences was statistically significant. An asymmetry index was used for inter-groups assessment. From fetuses up to aged group, none of the asymmetry index means were statistically different. The posterior part of palate (PNS x GPF) measures were more asymmetric than the anterior part (INC x GPF), showing respectively 4.6% and 2.8% of mean asymmetry index. Angular measures showed a more symmetric behavior than the linear ones. Hard palate asymmetry occurs even in the absence of masticatory function,showing that this feature begins early in fetal life and persists through development.
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    Palatal asymmetry during development: Am anatomical study
    (Wiley-Blackwell, 2008-07-01) Moreira, Rafael Saviolo [UNIFESP]; Sgrott, Emerson Alexandre [UNIFESP]; Stuker, Henri; Alonso, Luis Garcia [UNIFESP]; Smith, Ricardo Luiz [UNIFESP]; Univ Vale Itajai; Universidade Federal de São Paulo (UNIFESP)
    The purpose of this study was to evaluate hard palate asymmetry during development. the palates of 248 dry skulls were photographed and evaluated digitally. the skulls were divided into seven groups: fetus, newborn, infant, child, adolescent, adult, and aged. Linear measures were obtained from great palatine foramen (GPF) to incisive fossa (INC) and to posterior nasal spine (PNS). Angular measures were obtained from the former landmarks plus the point on sutures intersection between maxillary and palatine bones. Asymmetry was evaluated intra and intergroups. All skulls showed some degree of right-left asymmetry in the hard palate. Regardless of hard palate asymmetry, none of the right-left side differences was statistically significant. for the intergroups assessment, none of the asymmetry index means were statistically different. the posterior part of palate (PNS x GPF) measures was more asymmetric than the anterior part (INC x GPF), showing, respectively, 4.6% and 2.8% of mean asymmetry index. Angular measures showed a more symmetric behavior than the linear ones. Hard palate asymmetry occurs even in the absence of masticatory function, showing that this feature begins early in fetal life and persists through development.