Orthodontic extrusion of horizontally impacted mandibular molars
作者： Pei Shen , Chi Yang , Qianyang Xie , Shanyong Zhang , Zhigui Ma
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摘要: Objective: To introduce and evaluate a novel approach in treating horizontally impacted mandibular second third molars. Materials methods: An orthodontic technique was applied for treatment of molars, which included push-type spring rotation first, then cantilever extrusion. There were 8 molars (M3s) 2 (M2s) this study. Tooth mobility, extraction time, the inclination parallelism tooth, alveolar bone height adjacent relationship M3 inferior nerve (IAN) evaluated. Results: Two M2s could be upright arch good occlusal relationships obtained after treatment. All M3s successfully separated from IAN, without any neurologic consequences. The average time 5 minutes. significant change tooth A new apposition with 3.2 mm noted distal to tooth. Conclusions: This two-step as presented here may safe feasible alternative management severely achieves successful separation IAN an excellent position M2s.
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