Coronectomy and dentigerous cysts: A review of 68 patients

Publication date: Available online 20 February 2017
Source:Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Author(s): Marianne Henien, Chris Sproat, Jerry Kwok, Kiran Beneng, Vinod Patel
IntroductionThis large case series retrospectively reviews the outcomes of coronectomy in conjunction with dentigerous cyst removal on 68 patients at the Oral Surgery Department at Guy's Hospital.MethodsA retrospective review of 68 patients was undertaken in a single department where 73 teeth with associated dentigerous cysts were treated by coronectomy to reduce the risk of inferior alveolar nerve injury or mandibular fracture.ResultsOne patient experienced permanent injury of the inferior alveolar nerve. There were no intra-operative mandibular fractures in this series. Four coronectomy roots required retrieval at 2, 4 and 20 months and 10 years from the initial surgery due to persistent surgical site infection, and incomplete coronectomy with retained enamel and associated cystic tissue leading to symptoms. The longest follow-up in this series was 10 years for 2 patients while 30/68 patients were reviewed between 1 and 3 years post-operatively.ConclusionCoronectomy in conjunction with dentigerous cysts is an effective treatment with minimal morbidity seen in both short and long-term periods.



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