Comparación tridimensional del arco dental maxilar en las maloclusiones de clases I y II

Introduction : dental malocclusion refers to the incorrect alignment of the teeth or the form in which the upper and lower teeth fit together and, given its prevalence, nowadays it is considered a public health problem.  Objective : to evaluate the transverse dimensions of the dental arch, the depth and the anteroposterior distance in the maxillary bone, in the classes I and II malocclusions.   Methods : the intercanine, interpremolar, intermolar, anteroposterior distance and depth of the palate in 100 models of permanent teething study. The Korkahaus compass, the Microsoft Excel program and the  Student´s t test were used.  Results : there were significant statistical differences only in the traverse dimensions and the narrowest dental arch was in the class II malocclusion.   Conclusion : class I malocclusion presented the widest dental arch,  class II  has higher depth of the palate and the anteroposterior distance in canine teeth and first bicuspid teeth was higher in the latter and in the second buccal teeth in  class I.