An incision is made with a scalpel along the edge of the jawbone where it meats the soft tissue. Make this incision the full length of the jaw bone. If the incision is made only along the edge of the jaw line and not through the inside of the mouth, no repair or sewing will be needed. Once the incision is opened the flesh is scraped out using a fish skinning knife, a fleshing tool, scissors etc. Note the flesh has been removed and the inside of the mouth was not punctured. Also note that when the mouth is propped open the incision is no longer visible. No repair work is needed in this area on the mounted fish. The opening of the mouth closes the seam.