Impacted third molar treatment using the coronectomy technique – clinical features

Vol. 12 – Number 47 – 2021 IMPLANT DENTISTRY NOTEBOOK Case report Page 60-66 Impacted third molar treatment using the coronectomy technique – clinical features Bruno César Parpinelli¹ Aécio Abner Campos Pinto Junior² Sarah Campos de Sales¹ Lucas Moreira Maia³ Bárbara Lopes Freire¹ Luiz César Fonseca Alves¹ Abstract Nerve damage during third molars removal is an inherent risk of the procedure due to the anatomical proximity of these structures. Coronectomy is an effective technique that can reduce the risk of developing paresthesia caused by this injury. The present study aims to report a clinical case in which the coronectomy was performed describing its technique. The procedure was performed on a 25-year-old male patient, with third molars removal indication. The radiological exam suggested an intimate relationship between the lower right third molar roots and the mandibular canal. The coronectomy technique was performed under local anesthesia and the follow-up was performed after seven days, four months and four years. One week after surgery patient reported good recovery and does not showed radiographic signs or clinical symptoms of sensory or other pathological disorders. After four years, a new radiography was performed, where sign of peripheral bone formation and the absence of any pathological aspect or migration were observed. Considering the low complexity and morbidity of the technique, it becomes a good alternative to extraction, aiming to reduce the development of paresthesia in high-risk cases. Descriptors: Oral surgery, mandibular nerve, third molar, paresthesia. ¹ School of Dentistry – UFMG. ² School of Dentistry – UFMG, School of Dentistry – UniBH. ³ School of Dentistry – UIT. DOI: 10.24077/2021;12476066