Estudo comparativo do estágio de maturação da sutura palatina mediana definido em diferentes cortes axiais de tomografia computadorizada de feixe cônico (estudo piloto avaliando corte inferior)

Abstract

Introduction: Angelieri et al. (2013) proposed a new method for assessing the stage of maturation of the median palatal suture (PMS) using cone beam computed tomography (CBCT) exams, in order to assist clinical decision-making in the treatment of transverse maxillary deficiency. Considering the limitations of this method, the objective of the study was to evaluate whether the stage of maturation of PMS varies according to the height of the axial cut in which it is determined in CBCT exams. Material and Methods: A pilot study was carried out with a sample composed of 17 TCFC exams. Of these exams, 8 were male (47.1%) and 9 female (52.9%), aged between 11 and 45 years and a mean of 22 (± 7.10) years. The evaluation of the stage of maturation of the SPM was made using the methodology proposed by Angelieri et al. (2013) and in two axial sections: in the axial section that provided better visualization of the SPM and in an axial section 0.50 mm below the first selected. Results: When comparing the classifications attributed to the 2 axial sections of each individual, an agreement was observed in 6 of the 17 exams. Among the 11 exams in which there was a difference in the assigned classification, 8 of these differences occurred by only one stage. In 3 exams there was a marked difference in classification. Conclusion: It is concluded that the different heights of axial cuts made along the vertical thickness of the palate influenced the classification of the stage of maturation of PMS in more than half of the sample, emphasizing the importance of a study with a representative sample to infer the result in population.