I had my wisdom teeth removed five days ago now. My upper left and lower left stitches have dissolved and fallen out, however; my lower left wisdom was removed, along with my second molar. Now, I have noticed there is a decent gap there, and it looks like the stitch is through the gap, just..not holding the gap shut. I'm planning on calling my dentist in the morning, but I don't what when they'll be able to get me in. Is this a major concern?