Journal of implantology and applied sciences ISSN:2765-7833(Print) 2765-7841(Online) 대한구강악안면임플란트학회지

Bone grafts at the maxillary sinus are often required after closure of an oroantral fistula (OAF) to allow for subsequent implant installation. The present report describes a single procedure that provides large OAF closure and bone grafting at the involved sinus. This technique involves sinus mucosal lifting via elevating the sinus membrane, which is recovered as a continuous layer by combining the residual sinus membranes with a flipped part of the oral mucosa around the OAF. This technique involves sinus mucosal lifting via elevating the sinus membrane, which is recovered as a continuous layer by combining the residual sinus membranes with a flipped part of the oral mucosa around the OAF. Autogenous bone from the Ileum was grafted into the prepared sinus space, and the oral side of the graft was covered by a rotated palatal flap. This technique was used to treat 3 patients who had large OAFs in the atrophied posterior maxillay region due to previous multi ple implant failures after sinus lifting. The treatment was successful in all cases. This technique appears to be suitable for large OAFs where implants are subsequently required.