There are different types of nightguards available to address various dental needs. The most common types include stock nightguards, boil-and-bite nightguards, and custom-made nightguards. Stock nightguards are pre-formed and ready to use but may not provide the best fit. Boil-and-bite nightguards can be customized by softening them in hot water and molding them to your teeth. Custom-made nightguards, provided by dentists are tailored to your specific mouth structure for optimal comfort and protection.