Conversation: The conversation between human and AI assistant.
[|Human|] I have a tooth that was worked on 6 months ago.. they took my grey cavity out and filled it w a white one and also protected it w something.... they spent awhile on it. months later it was infected, so I took anti biotic... only bothered me a few times after minimal compared to b4 antibiotic... Now say 4 months I have a pimple like bubble on the side of my tooth... Is this conhhenry1978cerns to me suggestion I need a root canal??
[|AI|]  Hi, Welcome to Chat Doctor forum, Your tooth which was filled earlier has got infection due to any residual caries or secondary caries. Due to caries, infection has reached the pulp and periapical abscess has formed. This pimple like bubble is due to abscess formed because pus needs a way to extrude itself. Consult a dentist for radio graphical examination done. Root canal treatment has to be done in this tooth. Take care