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Background This study evaluated the treatment effects of the Carriere Distalizer used with either full fixed appliances (FA group) or lower lingual arches (LLA group). Methods Cephalometric radiographs from 41 orthodontic patients with Class II Division 1 malocclusion before and after use of the Carriere Distalizer were investigated. Eligible individuals possessed a normal maxilla, retrognathic mandible, normal growth pattern, permanent dentition, minimal crowding with well-aligned dental arches, and at least an end-on Class II molar relationship bilaterally. Two matched groups were formed according to sagittal and vertical skeletal characteristics. Full fixed appliances and a lower lingual arch supported Class II elastic use in the FA (n = 19) and LLA (n = 22) groups, respectively. The Wilcoxon signed rank test was used to compare the treatment changes between the two groups. The differences between the study groups were compared using the Mann-Whitney U test. Results The maxillary molar was distalized between 1.6 and 2.5 mm, with the mean amount of molar tipping not exceeding 3.7° in the study sample. No significant differences were observed between the study groups with regard to molar distalization and tipping. Significant reductions in both the Wits and over-jet measurements were observed in both groups (all, P P Conclusions Successful correction of Class II malocclusion was achieved with the Carriere Distalizer appliance in both groups, with minimal molar tipping. However, adverse effects common with Class II elastics accompanied the correction at variable rates in the groups. |
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