Long term morbidities of coronectomy on lower third molar.
OBJECTIVE To monitor the long term morbidity of retained roots up to 5 years following lower third molars coronectomy with close proximity to the inferior alveolar nerve (IAN) STUDY DESIGN A prospective study on long term morbidities after lower third molar coronectomy. RESULTS This study included 612 lower third molar coronectomies in 458 patients. The prevalence of IAN injury was 0.16% (1/612) and was temporary. Long term postoperative infection occurred in 1 case at 6 months following surgery and another at 12 months. No infection was found after 12 months. The incidence rates of pain at 6 months, 12 months, 24 months after surgery were 0.50% (3/596) 0.38% (2/529) 0.49% (2/411) respectively. Root exposure was noted in 2.3% of cases (14/612) Reoperation to remove the exposed root did not cause any IAN deficit. CONCLUSIONS Lower third molar coronectomy is safe in the long term.
Oral surgery, oral medicine, oral pathology and oral radiology