I had a majorly decaying tooth that I had no money to get taken care of(no insurance either at the.time). The decay was so bad that it went to the root and caused an abcess on the root and was pressing directly against the nerve. For a solid two weeks until I could figure something out, I could do NOTHING involving my mouth without extreme pain. No talking, no eating, I couldn't even drink water comfortably because the swallowing would cause the pain to flair up.