Thank you all for the suggestions, he does have fidgets & other things like that but it doesnt help, gum unfortunately hes not ready for we have thought bout it as it was suggested by my 1 yr olda pt but @ this time dont think its a good idae thanks though. Its frustrating cause hes been doing this since he was 7-8 months old as he had all of his teeth in by then & after 2 yrs of dealing with it im deff worn out. Again thanks everyone your input is appreciated :-)

I give my son a fidget toy, like a plastic clothes pin and he puts it in his mouth, it is safe and it keeps his mouth occupied. He wouldn't do the vibrating toothbrushes or keep the gum in his mouth for long ..

I do not have an answer for your question, but I understand your frustration..so *hug*. I've been dealing with my 4yr old hitting and wanting to bite, though not all that often. I just spoke with a behavior expert this morning and she highly recommended a book called "1-2-3 Magic". http://www.amazon.com/1-2-3-Magic-Effective-Dis...(Phone number can only be seen by the question and answer creators)&sr=1-1 Maybe try to contact your local autism society for advice. I know the Autism Speaks site has a phone number to call for help too: (Phone number can only be seen by the question and answer creators) http://www.autismspeaks.org/family-services/aut... Good luck and hang in there!

see if he will chew gum