I agree saliva cant be all that bad. I used to bite all up along the inside of my cheeks constantly. Enough where theyd bleed alot. The dentist would always say something about it, only one who'd notice. This has long since healed and theres no way of not getting any saliva on the insides of your cheeks. I just stopped biting which wasnt easy. I have a raised scar line on both sides where I used to bite I dont think will ever go away. Ive been curious of what saliva was made up of, but never got around to searching. thanx for the post