I love having this myomunchie. We use it daily. We started with putting it in his mouth and making a big deal over it. How fun it was, show the dog, show your toys, making growling noises, etc. It says on the web site to work up to 20 minutes twice a day and I've found that is more than likely not going to happen for Cameron. He just is too impulsive and has very little patience for things that take too long. Not to mention 20 minutes to a 4 y.o. is a LONG time.
Knowing I couldn't follow the protocol recommended, I began keeping the Myomunchie with me all the time. Whenever I heard him begin to grind, in it would go for as long as I could get him to keep it in and as many times as he would allow. There were times it was going in and out of his mouth for close to 10 minutes, each time keeping it in his mouth anywhere from 5 to 20 seconds. At the same time we started telling him his grinding was biting and reminded him that biting hurts. Not that he would hurt anyone else by grinding his teeth but eventually it is going to hurt his own mouth which we want to prevent. Within the first 3 days I noticed I was having to put in the myomunchie less and less. So that's when every time I heard him grind I would say, "Cameron you are biting. Remember owies." Please know I was NOT disciplining him in anyway. There were no owies involved by us, it was just a reminder so as he gets older he will understand that grinding teeth can create owies in his own mouth. Anyway, he quickly learned this so whenever I would mention he was biting, he would ask, "Owies?" Which I could then tell him yes and believe it or not most of the time he stopped grinding at least for a little while. If he didn't, in went the myomunchie.
We are still using it daily but only a few times a day. Usually a simple reminder of biting is all it takes to get him to stop. There are times now he asks to have it too. He chews on it for awhile and then tries to put it in one of his sisters' doll's mouth, then back into his, then back to the doll's.