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izvor podataka: crosbi

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

Špalj, Stjepan ; Mroz Tranesen, Kate ; Birkeland, Kari ; Katić, Višnja ; Pavlić, Andrej ; Vandevska-Radunović, Vaska Comparison of activator-headgear and Twin Block treatment approaches in class II division 1 malocclusion // BioMed research international, 2017 (2017), 486192-1-486192-9. doi: 10.1155/2017/4861924

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)

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Podaci o izdanju

2017

2017.

486192-1-486192-9

objavljeno

2314-6133

10.1155/2017/4861924

Povezanost rada

Dentalna medicina

Poveznice
Indeksiranost