Fig. 1

A procedure of bolster dressing with continuous suction over the skin graft in an oral cavity wound. a A polyvinyl alcohol sponge (Merocel®) was inserted with a trocar of a 100 cc Jackson-Pratt (JP) drain. Several suction holes in the line were placed within the sponge. b The drain was anchored with a tagging suture. c The skin graft was placed over the intraoral defect with a pie-crust technique. d JP-tagged Merocel® was placed on the Gelfoam® and anchored with tie-over sutures