Even when your teeth appear normal, indications such as pain, swelling, or redness in your gums, mouth or face may be the telltale signs of a dental infection. A dental infection (Also known as an abscess) don’t resolve on their own, and can bring along many dangerous health complications if left untreated. When left unaddressed an infection commonly needs to be countered with a root canal, however if it is too severe, only extraction will help.