Comparison of activator-headgear and Twin Block treatment approaches in class II division 1 malocclusion (CROSBI ID 235594)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Špalj, Stjepan ; Mroz Tranesen, Kate ; Birkeland, Kari ; Katić, Višnja ; Pavlić, Andrej ; Vandevska-Radunović, Vaska
engleski
Comparison of activator-headgear and Twin Block treatment approaches in class II division 1 malocclusion
The purpose was to compare the treatment effects of functional appliances activator- headgear (AH) and Twin Block (TB) on skeletal, dental, and soft-tissue structures in class II division 1 malocclusion with normal growth changes in untreated subjects. The sample included 50 subjects (56% females) aged 8–13 years with class II division 1 malocclusion treated with either AH (n=25) or TB (n=25) appliances. Pre- and posttreatment lateral cephalograms were evaluated and compared to 50 untreated class II division 1 cases matched by age, gender, ANB angle, and skeletal maturity. A paired sample, independent samples tests and discriminant analysis were performed for intra- and intergroup analysis. Treatment with both appliances resulted in significant reduction of skeletal and soft-tissue facial convexity, the overjet, and the prominence of the upper lip in comparison to untreated individuals (p<0.001). Retroclination of maxillary incisors and proclination of mandibular incisors were seen, the latter being significantly more evident in the TB group (p<0.05). Increase of effective mandibular length was more pronounced in the TB group. In conclusion, both AH and TB appliances contributed successfully to the correction of class II division 1 malocclusion when compared to the untreated subjects with predominantly dentoalveolar changes.
class II, functional appliance, orthodontic
This study is partially supported by University of Rijeka grant (13.06.2.1.53)
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
2017
2017.
486192-1-486192-9
objavljeno
2314-6133
10.1155/2017/4861924