Title: Coronectomy for mandibular third molars: A retrospective review of clinical outcomes
Abstract:
Objectives: Coronectomy is a recognised surgical technique used in the management of mandibular third molars that are closely associated with the inferior alveolar nerve (IAN). By removing the crown while intentionally retaining the roots, the procedure aims to reduce the risk of nerve injury compared with complete extraction. This study aimed to evaluate the short-term clinical outcomes and complication rates associated with coronectomy procedures performed within a tertiary oral and maxillofacial surgery service.
Materials and Methods: A retrospective review was conducted of patients who underwent coronectomy of mandibular third molars. Twenty consecutive cases involving either the lower right or lower left third molar were identified. Patient records were analysed to assess postoperative outcomes, including complications, emergency department attendance, and re-referral following surgery.
Results: A total of 20 coronectomy procedures were included in the analysis. Nineteen patients (95%) experienced an uncomplicated postoperative course. One patient (5%) presented to the emergency department postoperatively with concerns following surgery. One additional patient was re-referred for postoperative assessment; however, no complications were identified and the patient was discharged without intervention. No cases of inferior alveolar nerve injury were reported.
Conclusion: Within this cohort, coronectomy demonstrated a high success rate and a low incidence of postoperative complications. Notably, no cases of inferior alveolar nerve injury were observed, supporting coronectomy as a safe and effective alternative to complete extraction when mandibular third molars are closely associated with the inferior alveolar nerve. Further studies with larger patient cohorts and longer follow-up periods are recommended to better evaluate long-term outcomes.
