Maxillofacial Plastic and Reconstructive Surgery

  • Volume 39
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  • Pages.29.1-29.5
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  • 2017
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  • 2288-8101(pISSN)
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  • 2288-8586(eISSN)
Korean Association of Maxillofacial Plastic and Reconstructive Surgeons (대한악안면성형재건외과학회)
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Intentional partial odontectomy-a long-term follow-up study

  • Kim, Hyun-Suk (Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital) ;
  • Yun, Pil-Young (Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital) ;
  • Kim, Young-Kyun (Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital)
  • Received : 2017.07.03
  • Accepted : 2017.09.04
  • Published : 2017.12.31
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Abstract

Background: The surgical extraction of the third molar is the most frequently encountered procedure in oral and maxillofacial surgery and is related with a variety of complications. This study examined the efficacy of intentional partial odontectomy (IPO) in the third molars which have no periapical lesions and are located near important anatomical structures such as inferior alveolar nerve. Methods: Seven patients (four males, three females, $39.1{\pm}11.6years$), who received IPO to reduce the risk of inferior alveolar nerve injury (IANI), were followed long-term. The treated teeth were horizontally impacted third molars in the mandibular left (n = 5) or mandibular right (n = 4) areas and were all ankylosed with the surrounding alveolar bone. During the IPO, the bone around the crown was removed to expose the crown, and then the tooth was resected at cement-enamel junction (CEJ). Any secondary trauma to the healthy root was minimized and remained intact after primary suture. Results: The mean follow-up time was $63.2{\pm}29.8months$, and all sites showed good bone healing after the crown removal. Also, sensory abnormality was not found in any patients after IPO. In one patient, the bone fragments erupted 4 months after IPO. In other patient, an implant placed on second molar site adjacent to the third molar that received IPO was explanted about 2 years after the patient's persistent discomfort. Conclusions: In case where high risk of IANI exists, IPO may be chosen alternatively to surgical extraction to reduce the risk of nerve damage.

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References

  1. Vafaei N, Ferretti C (2008) Coronectomy: an alternative therapy for the symptomatic, impacted third molar report of 9 cases. Scientific 22:34
  2. Leung YY, Cheung LK (2012) Coronectomy of the lower third molar is safe within the first 3 years. J Oral Maxillofac Surg 70(7):1515-1522 https://doi.org/10.1016/j.joms.2011.12.029
  3. O'riordan BC (2004) Coronectomy (intentional partial odontectomy of lower third molars). Oral Surg Oral Med Oral Pathol Oral Radiol Endod 98(3):274-280 https://doi.org/10.1016/j.tripleo.2003.12.040
  4. Sarwar H, Mahmood-Rao S (2015) Coronectomy; good or bad? Dent Update 42:824-828 https://doi.org/10.12968/denu.2015.42.9.824
  5. Pell GJ, Gregory GT (1942) Report on a ten-year study of a tooth division technique for the removal of impacted teeth. Am J Orthod Oral Surg 28(11):B660-B666 https://doi.org/10.1016/S0096-6347(42)90021-8
  6. Pederson GW (1988) Surgical removal of tooth. In: Pederson GW (ed) Oral surgery. WB Saunders, Philadelphia
  7. Frafjord R, Renton T (2010) A review of coronectomy. Oral Surg 3(1-2):1-7
  8. Renton T, Hankins M, Sproate C, McGurk M (2005) A randomised controlled clinical trial to compare the incidence of injury to the inferior alveolar nerve as a result of coronectomy and removal of mandibular third molars. Br J Oral Maxillofac Surg 43(1):7-12 https://doi.org/10.1016/j.bjoms.2004.09.002
  9. Hatano Y, Kurita K, Kuroiwa Y, Yuasa H, Ariji E (2009) Clinical evaluations of coronectomy (intentional partial odontectomy) for mandibular third molars using dental computed tomography: a case-control study. J Oral Maxillofac Surg 67(9):1806-1814 https://doi.org/10.1016/j.joms.2009.04.018
  10. Williams M, Tollervey D (2016) Lower third molar surgery-consent and coronectomy. Br Dent J 220(6):287-288 https://doi.org/10.1038/sj.bdj.2016.217
  11. Pogrel MA (2009) An update on coronectomy. J Oral Maxillofac Surg 67(8):1782-1783 https://doi.org/10.1016/j.joms.2009.03.065
  12. Knutsson K, Lysell L, Rohlin M (1988) Postoperative status after partial removal of the mandibular third molar. Swed Dent J 13(1-2):15-22
  13. Dolanmaz D, Yildirim G, Isik K, Kucuk K, Ozturk A (2009) A preferable technique for protecting the inferior alveolar nerve: coronectomy. J Oral Maxillofac Surg 67(6):1234-1238 https://doi.org/10.1016/j.joms.2008.12.031
  14. Pogrel MA, Lee JS, Muff DF (2004) Coronectomy: a technique to protect the inferior alveolar nerve. J Oral Maxillofac Surg 62(12):1447-1452 https://doi.org/10.1016/j.joms.2004.08.003

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  2. Does the Coronectomy a Feasible and Safe Procedure to Avoid the Inferior Alveolar Nerve Injury during Third Molars Extractions? A Systematic Review vol.9, pp.6, 2017, https://doi.org/10.3390/healthcare9060750