<s>[INST] Behind my bottom back tooth is a small white place sitting atop the end of my lower right gums. It looks like the there s a similar place on the left side too in the same spot, but smaller. What could this mean? Could this be caused by my bruxism or is it something else? [/INST] Thanks for your query, I have gone through your query. The white patch can be a frictional keratitis or irrational fibrous or inflammatory hyperplasia secondary to the irritation by the teeth(sharp usual edges) or chronic biting over that region. Nothing to be panic, It is a benign lesion. Consult an oral physician and get it examined. If there are any sharp usual edges, then get the enameloplasty done to prevent further complications like ulcerations. If there is a growth which is coming at the line of occlusion, then get it surgically removed. I hope my answer will help you, take care. </s>