RGO: Revista Gaúcha de Odontologia (Sep 2020)

Can Mental Index be used on CBCT images to determine sexual dimorphism?

  • Ana Luiza Esteves CARNEIRO,
  • Sabrina Evelyn Santos MACIEL,
  • Daniela Miranda Richarte de Andrade SALGADO,
  • Jéssica Rabelo Mina ZAMBRANA,
  • Nataly Rabelo Mina ZAMBRANA,
  • Claudio COSTA

DOI
https://doi.org/10.1590/1981-863720200002620180072
Journal volume & issue
Vol. 68

Abstract

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ABSTRACT Objective: Radiomorphometric indices (RI) vary according to gender and age. The objective of this study was to assess bone quality in men and women, using tomographic images Methods: A total of 78 Cone Beam Computed Tomography (CBCT) images of female and male patients were analyzed. The images were obtained from LAPI-FOUSP database, São Paulo, Brazil, and the Mental Index, which is a quantitative index, was evaluated on those images. The images were divided into 2 groups: Group M – Men and Group W – Women and evaluated by one examiner in two different times (T1 and T2). The data was submitted to a statistical analysis with a 95% level of significance (p <0.05) Results: The ICC tests showed an average to good intra-examiner agreement. The age averages were: 48.46 ± 15.3 for group W and 53.87 ± 13.09 for group M. On the MI evaluation, statistically significant differences were observed between the two groups Conclusion: We concluded that MI can be used to determine sexual dimorphism, once the thickness of the mandible cortex in women is smaller than the thickness found in men.

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