Dry mouth is one of the many prominent effects of methamphetamine. swallow it, smoke it, snort it, shoot it, plug it, invent your own transdermal meth patch, administer the methamphetamine to your body via Bluetooth or Wi-Fi. It does not matter, dry mouth will be a result of exposure to methamphetamine, and every single ROA itself represents a means of exposing the drug to the nearest onramp then via the circulatory freeway system on a race to your receptors. Each ROA gets to the circulatory system in a different timeframe, depending on which part of your body it is, which veins are carrying the cargo, whether they undergo first pass metabolism or bypass the liver, but the endgame results in having all ROA's causing (for the vast majority) the same symptoms to a relative degree.
For example, most people who aren't educated on the subject would say vaporization causes meth mouth which isn't entirely true since as we discussed, "all paths lead to Rome", all ROA's are capable of detrimental oral health and tooth decay most often as a direct result of self-neglect, however there is some research out there that claim that when vaporizing/ "smoking" meth, the methamphetamine + whatever it is cut/adulterated with undergo a series of changes when changing from the solid, to liquid, and finally gaseous vapor form (as basic rules of chemistry and physics already explain exactly what changes occur).
The research found that active and inactive ingredients when heated to form vaporized methamphetamine, a vapor that's (if you can believe it), not very healthy and chances of it doing your mouth any favors are not looking good, so the vapor meth 'smokers' are exposed to is like, somewhat corrosive to tooth enamel!
So using vaporized methamphetamine via the inhaled/pulmonary route which likely exacerbates the tooth and oral health decay in those abusing the drug without taking measures or regards to protecting their teeth or general health and hygiene.
So in depth that's why the title of this thread's question is not easy to answer simply and certainly not in a way that applies universally. Every user is unique in their ritual abuse methodology, extent of moderation, wildly fluctuating and lacking basic knowledge of the drug, it's chemistry or pharmacokinetics, and lastly yet critically essential, how one's application and extent/effort of harm reduction both before, during, and after they administer the drug.
To prevent meth mouth: Use less meth, learn everything you can beyond the bare basics of the chemicals you're putting in your body and how this is applied to HR by drinking the daily minimum recommended water intake, use of dental hygiene products from brushing your teeth completely and properly and regularly. Another dental hygiene product, like Biotene (sold pretty much most places mouthwash is sold, and pharmacies) which is a special mouth rinse for Dry Mouth. Similar to mouthwash, it cleans out your mouth, but unlike most mouthwash it has no alcohol since that would worsen dry mouth. It works as a pH buffer to restore neutral pH 7 environment from the acidic conditions produced by the meth and/or poor hygiene.
