If you’ve been diagnosed with bruxism, your dentist has probably recommended that you use a custom dental guard, which is also called an occlusal splint. Dental guards are not cheap however, and purchasing one from your dentist may cost as much as $500. If the hefty price tag nearly gave you a heart attack, don’t worry, ordering online can reduce this cost to nearly a fifth. Depending on how severe your bruxism is and your specific mouthguard needs, there are numerous mouth guard options online. When you choose a night mouth guard online, it will cost between $100-200 and last from 6 months to 5 years. Keep these things in mind when you choose a night mouth guard.