<s>[INST] I have a bump on the right back side of the roof of my mouth. It is right next to the tooth that is farther back. It has pain when I brush my tongue over it. Also giving me a slight headache and earache. I just recently went to to dentist for a cleaning and they said my wisdom teeth were not even showing so what could this be? [/INST] Thanks for your query, I have gone through your query.The lump can be because of the infection from the gums leading to periodontal abscess formation or it can be because of the tooth infection resulting in formation of periapical abscess. The other possible cause can be a exostosis or tori.Consult a oral physician and get it evaluated. If i am your treating doctor, Meanwhile i would have suggested you to take a course of antibiotics amoxicillin 500mg and metronidazole 400mg tid for 5 days (if you are not allergic).Later, you can your teeth cleaned if it is because of gum infection. If it is tooth infection, tooth can be treated with RCT or extraction. If it is a tori or exostosis, it can e surgically treated.I hope my answer will help you, take care. </s>