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  • Title: Orthodontic extrusion of the lower third molar with an orthodontic mini implant.
    Author: Park W, Park JS, Kim YM, Yu HS, Kim KD.
    Journal: Oral Surg Oral Med Oral Pathol Oral Radiol Endod; 2010 Oct; 110(4):e1-6. PubMed ID: 20674416.
    Abstract:
    Neurologic changes owing to damage to the inferior alveolar nerve (IAN) are the most serious complication of lower third molar (M3) extraction because of their close spatial relationship. We adopted the concept of regional orthodontic treatment and extrusion, using skeletal anchorage with an orthodontic mini implant. Two malformed M3s that were closely apposed to the IAN were extruded with the aid of 3 or 4 orthodontic brackets and a mini implant. Both of the M3s were extruded successfully. The patients experienced little discomfort with the orthodontic appliances and there was neither permanent neurologic damage nor fracture of the root fragments following subsequent M3 extraction. Orthodontic treatment using a miniscrew to separate the IAN and M3, or luxation of the M3 may be a good alternative treatment option for extrusion of a vertically impacted lower M3 with fragile roots.
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