Methamphetamine, known on the street as crystal meth, is a stimulant which decreases saliva flow, virtually stopping the body's immunity and defense to cavity causing bacteria. Most meth users end up losing all of their teeth and wearing a denture in a very short period of time.
Anthropologist's study of meth users in Jefferson County, MO.
Face of a Meth User - 10 Years. I knew telling my kids about being illegal, and bad for your health, and the natural negative consequences (like, uh, STDs and getting your teeth knocked out, and unplanned pregnancies... that stuff) of drugs and irresponsible (including underage) drinking would only go so far... So I always REALLY emphasize how it makes them look; I appealed to the kids' very natural sense if vanity. (Faces of Meth) Meth has been glamorized by Breaking Bad... Show your kids!
before and after meth pictures | meth users before and after image search results