Effects of Sabbagh Universal Spring 2 fixed functional appliance on class II/1 patients at their postpubertal-peak growth period compared with the extraction method
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文摘
ObjectiveThe aim of this study was to evaluate the therapeutic effects of the Sabbagh Universal Spring 2 (SUS 2) fixed functional appliance compared to the premolar extraction method in correcting class II/1 malocclusion in patients who had passed their peak of postpubertal growth (stages 4–6 of Cervical Vertebral Maturation Index).

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