Abstract
The aim of this study was to evaluate the skeletal and dental changes in Class III patients treated with Modified Jasper Jumper appliance and Delaire face mask before the growth peak. A study sample comprising 16 patients with functional Class III malocclusion treated with Modified Jasper Jumper appliance and 17 patients treated with Delaire face mask was compared with a control group comprising 13 patients. Pancherz analysis was used as the analysis method. In both treatment groups forward movement of maxillary base and incisors and an increase in the overjet while no positional change in the mandibular base was observed. In the Modified Jasper Jumper group, 4.63 mm overjet correction was due to 51.4% skeletal and 48.6% dental changes; 4.77 mm Class III molar correction was due to 49.9% skeletal and 50.1% dental changes. In the Delaire face mask group, 5.17 mm overjet correction was due to 70.6% skeletal and 29.4% dental changes and 4.87 mm Class III molar correction was due to 75% skeletal and 25% dental changes. It was shown that both appliances were skeletally and dentally effective. Therefore, Modified Jasper Jumper therapy may be an alternative treatment modality for patients with poor cooperation, who are not ideal recipients for Delaire face mask.
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