Are you grinding or clenching your teeth at night and waking up with a sore jaw? That’s not supposed to happen—your teeth are wearing down while you sleep, and your body is crying out for help. Left unchecked, bruxism can crack enamel, trigger headaches, and cost you thousands in dental work. Maybe your dentist told you to get a nightguard, but what is a nightguard good for? Do you really need one? A nightguard puts a stop to the damage before it gets worse, but not all nightguards ...

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