There are several known benefits of wearing a TMJ mouth guard. They decrease the amount of contact between your upper and lower teeth to reduce the effects of teeth grinding and clenching. They allow your jaw to rest at night, which helps your muscles relax and eases tension. Wearing a mouth guard can help you prevent injury and damage, ranging from chipped teeth to lost fillings and excessive wear and tear. Although you can purchase over-the-counter mouth guards from your nearest retailer, getting a custom-fit mouth guard from your dentist is in your best interest. You’ll find custom mouth guards are more comfortable to wear and are better for your long-term oral health. Ill-fitting “one size fits all” mouth guards can make oral complications like TMJ disorders worse over time.