Mouthguards can be necessary for multiple reasons. If you are a teeth-grider or jaw clencher, while awake or asleep, a cmouthguard can provide relief from a headache and TMJ jaw pain. The treatment eliminates the intensity of your teeth clenching and so relief from muscular pain comes in just a few days of wearing the mouthguard. More importantly, if you grind your teeth a guard will protect them from excessive wear and fracturing that can lead to cavities and early tooth loss. Another purpose of a mouthguard is to protect the teeth during sports. Wearing a mouthguard while playing football, basketball or any contact sport can help to prevent tooth injury. The mouth is the most commonly injured area of the body during contact sports. Having a custom-made mouthguard helps to protect teeth, gums and in many cases, lips and cheeks.