Complications after coronectomy of third molars

ABSTRACT Background Removal of mandibular third molars can be associated with postoperative complications. Coronectomy with partial removal of the crown, is described as an alternative surgical method when risks for post-operative complications are substantial. Aim The aim of this study was to evaluate risk factors for post-operative complications after coronectomy. Materials and Methods Fifty-six patients (26 men/30 women, median age 51 years) were operated with coronectomy of mandibular third molars. Risk factors were identified from medical records and radiographic examinations. Post-operative complications lasting over 14 days were registered. Results Fifty percent of the patients had a post-operative complication with significant higher risk for complications for patients over 51 years (p = 0.016). The most common complications were pain from surgical site and local infection. Three patients were registered with affected sensory function. Root migration was registered in 16 patients. Gender, comorbidity, medication, tobacco use, cause of referral (bacterial/other causes) or angulation of the third molar did not affect the risk for complications. Conclusion The results indicate that coronectomy is an appropriate surgical technique when the risks for postoperative complications are significant, although a high level of short-term complications has been observed.