8 Days ago I had two teeth pulled. The upper molar's just behind the bicuspids on the right and left side. The right extraction site is healing up really well and is almost closed up already but the left side is completely different. When I look at it I can see exactly where the roots went down into. It looks completely open but not raw or bloody. Its as if it healed but didn't close up. It doesn't hurt at all it just has an uncomfortable pressure like feeling to it. There is a white piece of something running parallel to my jaw that is painful when bumped by my tounge or food. Is there anything I can do about this? Or should I worry?