The effects of functional appliance and multi-bracket appliance on Class II malocclusion coupled with verti-cal and transversal problems
10.3969/j.issn.1001-3733.2016.06.012
- VernacularTitle:功能矫治器治疗三维方向错牙合畸形的研究
- Author:
Ting SANG
;
Zhen HUANG
;
Ying ZHENG
;
Jun WU
- Keywords:
Functional appliance;
Malocclusions;
Cephalometric analysis
- From:
Journal of Practical Stomatology
2016;32(6):799-804
- CountryChina
- Language:Chinese
-
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( P<0. 05), ANB were decreased(P<0. 05), upper posterior teeth were intruded and distally moved(P<0. 05), lower posterior teeth were extruded and mesialy moved(P<0. 05). After multi-bracket appliance treatment, the anterior teeth achieved normal overbite and over-jet. The molar relationship changed from class II to class I. Mandibular plane angle was not clockwise rotated(P>0. 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.
