Why do meth users lose all of their teeth? will that happen to me?

Here's a good guide: The american dental association has provided a guide to the condition that has come to be known as "meth mouth". Here are two links that will provide you with some useful information: http://www.Ada.Org/2711.Aspx and http://www.Mouthhealthy.Org/en/az-topics/m/meth-mouth.Aspx what happens to you will depend on prevailing over your addiction and enlisting your dentist's help in repairing your teeth.

Meth users: Meth reduces ones ability to take care of themselves and so users tend not to take care of their teeth. Furthermore, it dries the mouth making their teeth very susceptible to tooth decay. Fixing the teeth will get very expensive and if the meth is not stopped, the teeth will re-decay. Meth is very addicting and what will happen to you is up to you until you loose control then it may be too late.