Meth Mouth (IMAGE) American Dental Association Caption As in the photo, some meth users describe their teeth as "blackened, stained, rotting, crumbling or falling apart." Often, the teeth cannot be salvaged and must be extracted. Credit American Dental Association Usage Restrictions Image may only be used with appropriate caption or credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.