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Intentional partial odontectomy-a long-term follow-up study.

Hyun-Suk Kim1, Pil-Young Yun1, Young-Kyun Kim1,2

  • 1Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam City, Gyunggi-do Korea.

Maxillofacial Plastic and Reconstructive Surgery
|October 19, 2017
PubMed
Summary

Intentional partial odontectomy (IPO) offers a safer alternative to surgical extraction for impacted third molars near the inferior alveolar nerve. This method effectively reduces the risk of nerve damage while promoting good bone healing.

Keywords:
HypercementosisMandibular nerveTooth ankylosesTooth extraction

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Dental Implantology
  • Neurosurgery

Background:

  • Surgical extraction of third molars is common but carries risks, including inferior alveolar nerve injury (IANI).
  • Intentional partial odontectomy (IPO) is explored as a risk-mitigation strategy for impacted third molars adjacent to critical anatomical structures.

Purpose of the Study:

  • To evaluate the efficacy of intentional partial odontectomy (IPO) in preventing inferior alveolar nerve injury (IANI).
  • To assess long-term outcomes of IPO in patients with impacted third molars at high risk for nerve damage.

Main Methods:

  • A cohort of seven patients underwent IPO for horizontally impacted, ankylosed mandibular third molars near the inferior alveolar nerve.
  • The procedure involved exposing the crown, resecting the tooth at the cement-enamel junction (CEJ), and minimizing trauma to the root.

Main Results:

  • All surgical sites demonstrated good bone healing during a mean follow-up of 63.2 months.
  • No sensory abnormalities or inferior alveolar nerve injuries were reported post-IPO.
  • Minor complications included bone fragment eruption in one patient and implant explantation in another due to persistent discomfort.

Conclusions:

  • Intentional partial odontectomy (IPO) serves as a viable alternative to surgical extraction when there is a high risk of inferior alveolar nerve injury (IANI).
  • IPO can effectively reduce the incidence of nerve damage associated with third molar surgery.