USA Today (1/23, Wagner) reports, “Dental experts told USA TODAY that research has shown root canals do not impair the immune system” despite what some social media posts claim. “Leaving an infected tooth untreated,” however, may have serious consequences. “Performing a root canal treatment has no inhibitory effect on the immune system,” said Kim FitzSimmons, an American Association of Endodontists spokesperson. “An untreated dental infection can lead to more serious health problems, so it’s important to not delay seeing an endodontist or dentist if you are experiencing tooth pain.” Dental professionals “say the false notion that root canals ‘shut down’ the immune system is dangerous because it could lead people to avoid seeking treatment for an infection.”