HUBUNGAN ANTARA PERAWATAN TEKNIK BEGG DAN PERUBAHAN SUDUT BIDANG OKLUSAL TERHADAP PERUBAHAN JARAK AO-BO
The purpose of this study was to determine whether the treatment of class II Division 1 malocclusion with Begg technique fixed appliance would normalize the distance of AO-BO and to determine whether any changes on occlusal plane angulation would have an effect on AO-BO distance. The study was carri...
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| Format: | Thesis |
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[Yogyakarta] : Universitas Gadjah Mada
2013
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| Summary: | The purpose of this study was to determine whether the treatment of class II
Division 1 malocclusion with Begg technique fixed appliance would normalize the
distance of AO-BO and to determine whether any changes on occlusal plane
angulation would have an effect on AO-BO distance.
The study was carried out using 24 pairs of ceph of class II Division 1
malocclusion before and after treatment. These cases were divided into two groups.
One group consisted of 18 samples using extraction of 4 first premolars and the other
group consisted of 6 samples using extraction of 2 upper first premolars. The
distances of AO-BO were measured and analyzed with descriptive statistic test to
determine the direction of the percentage changes whether going towards normal,
away from normal or remain the same. T tests were carried out to determine whether
the changes of AO-BO distance and occlusal plane angulation were significant.
Regression analysis was used to determine whether the changes of occlusal plane
angulation had an effect on AO-BO distance.
The results of the study showed that 50% of the samples became normalize.
The t-test showed that changes were significant with p value = 0.007. The changes in
the occlusal plane angulation were unsignificant with p value = 0.096. Correlation
analysis showed that there were unsignificant correlation between the changes of
occlusal plane angulation and AO-BO distance after treatment. |
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