Mucosal fenestration is a relatively uncommon complication in orthodontic treatment. It can be easily neglected and thus the management of the condition has not been reported often. Treatment of mucosal fenestration depends on the extent of soft and hard tissue destruction. This article presents the case report of a 42-year-old male patient with fenestration-type defect around maxillary first molar. The patient has a history of complex orthodontic treatment. In this case, the fenestration was treated with buccal root apicoectomy. The healing process went well. Follow-up visits were scheduled after one month and six months after the procedure.

Key words: mucosal fenestration, bone fenestration, orthodontic treatment.