Every thing in moderation is good if you are chewing the gum all the time it can have bad effect on your teeth as wearing off the teeth will be more and muscles will becme sore as they do not get any rest and that can affect the TMJ. But if you chew it for some time then it is good as it increases the salivation and has the cleansing effect on the teeth . More so ever the gums remain healthy. If you want to know more about the dental topics you can browse our web site.