I had my chin and jaw done in December. The incision must have been made between gum and lower teeth as there's no visible cut anywhere. After about two weeks it looked as though my gums had come away from my teeth and the stitches didn't appear to be holding anything together in places - it looked as though they were just woven around my teeth. (Eating rice was a no-no as it was difficult to feel what was rice and what was gum and felt pretty uncomfortable.) My stitches (which were white by the way) must have dissolved soon after that and over the weeks since my gums have started to look healthier, appearing to grow back in places around the teeth. I was given a bottle of Corsodyl mouthwash to use by my surgeon, which I think helped and so I'd recommend that if you're not using it already!