Orthodontic extrusion of the lower third molar with an orthodontic mini implant

Wonse Park, Joãon Soo Park, Yun Mi Kim, Hyung Seog Yu, Kee Deog Kim

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)e1
JournalOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
Issue number4
Publication statusPublished - 2010 Oct

Bibliographical note

Funding Information:
This study was supported by a grant of the Korea Healthcare Technology R&D Project , Ministry for Health, Welfare & Family Affairs, Republic of Korea (no. A090381 ).

All Science Journal Classification (ASJC) codes

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology
  • General Dentistry


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