Correlação da maturação óssea vertebral e carpal frente à mineralização dentária em imagens radiográficas digitais

Abstract

The objective of this study was to determine the correlation between carpal bone and vertebral maturation stages of the front tooth mineralization through analysis of digital radiographs. The study was cross-sectional with sample totaling 113 subjects aged 9-15 years and 339 digital radiographs having been observed (carpal, and panoramic radiographs). The bone maturation in the carpal radiographs were analyzed by Fishman (1982) modified method, which uses four phases of bone maturation, observed in six anatomical sites. For radiographs the method used was proposed by Hassel and Farman (1995) and modified by Baccetti, Franchi and McNamara (2005), which consists of observing the anatomic changes of the 2nd, 3rd and 4th cervical vertebrae. The stage of tooth mineralization was analyzed in panoramic radiographs, based on the method of Dermijian (1973) and modified; the degree of development of the crown and root were observed. The analyses were performed by a calibrated examiner and the data were analyzed using the SPSS and the tests of Spearman correlations. The correlations were statistically significant between the indices of vertebral and carpal bone maturation and the dental mineralization stages of the canine, second and third molars in both sexes. The second molars had higher correlations (M = 0.80 and F = 0.78) and the third molars the lowest ones (M = 0.48 and F = 0.54) at p <0.05. It was concluded that the dental maturation stages can be used as a parameter for the determination of bone maturation in orthodontic treatments.