The effects of functional appliance and multi-bracket appliance on Class II malocclusion coupled with verti-cal and transversal problems / 实用口腔医学杂志

ABSTRACT

Objective: To evaluate the effects of functional appliance and multi-bracket appliance on Angle Class II malocclusions coupled with vertical and transversal problems. Methods:Headgear-activator, Herbst appliance and multi-bracket appliance were used to treat 20 patients with Class II malocclusions coupled with vertical and transversal problems aged from 10 to 15 years. The lateral cephalograms were measured with Winceph 8. 0 software and statistical analysis was carried by SPSS 13. 0 software. Results:The sagi-tal, vertical, transversal problems had mainly been resolved at the end of functional appliance treatment. The SNB were increased( P0. 05). The upper and lower dentition were harmony in sagital, vertical and transversal. Conclusion: Functional appliance combined with multi-bracket appliance can be used effectively and conveniently for the treatment of Class II malocclusions coupled with vertical and transversal prob-lems.