Orthodontic extraction: the riskless extraction of the impacted lower third molar close to the man

Summary: The study aims was to describe an orthodontic approach to move the third molar's root, which are radiographically close to the mandibular canal, away from the neuro-vascular unit in order to perform riskless extractions. Materials and methods: SEventy impacted lower third molars were extruded (patient's age between 18 and 50 years). The procedure consists of various phases: Phase 1: Creation of orthodontic anchorage Phase 2: Surgical exposure of the third molar crown Phase 3: Orthodontic extrusion of the third molar Phase 4: Radiographic assessment of the extrusion level Phase 5: Third molar extraction Results. Sixty eight lower third molars were orthodontically extruded until the roots were moved out of the mandibular canal. Two patients stopped the extrusion and had temporary paresthesia after the extraction. The treatment time was 3 to 6 months in vertically impacted teeth and 6 to 10 months in horizontally impacted teeth. Conclusion: The orthodontic-surgical approach to the impacted lower third molar is a simple technique for the dentist and minimally traumatizing for the patient. This technique makes the extraction easier and quicker, without risk of paresthesia or mandibular fracture, with less post-operative discomfort and with advantages on a periodontal level.