Avalia？？o e mensura？？o da sutura palatina mediana por meio da radiografia oclusal total digitalizada em pacientes submetidos à expans？o rápida maxilar

aim: to evaluate and to measure the midpalatal suture through digitalized occlusal radiographies before and after its disjunction. methods: the sample was comprised by 17 patients, with ages from 7 to 22 years. occlusal radiographies of these patients were obtained before and after the suture's opening. the occlusal radiographies were digitalized in a hp scanjet 6100 c scanner with the hpc 6261 6100 c transparencies adaptor and the deskscan ii software. the statistical analysis used average, standard deviation, variation coefficient, "t" test and anova. conclusions: after the results, it was possible to conclude that: (1) statistically, there was a significant midpalatal opening in the incisors area; (2) there was an opening in the diastema between upper central incisors in about 69.37% of the cases; (3) there was a bigger midpalatal suture opening in the 10mm area from the crest to posterior than in the 3mm area to posterior from the screw; (4) in the 3mm area to posterior from the screw there was an opening of 35.97% and in the 10mm area to posterior of the crest there was an opening of 69.37%.