A dentist mouthguard, also known as an occlusal guard or nightguard, is a dental appliance worn over the teeth to protect them from damage caused by grinding or clenching. Mouthguards are often used to treat bruxism, a condition that causes involuntary teeth grinding, and can also be used to protect teeth from injury during sports or other activities. Mouthguards are typically made from a soft, flexible material, such as silicone or rubber, and are custom-fitted to the individual's mouth.
While mouthguards are generally durable and can last for several years, they can sometimes become damaged or lose their fit. If this happens, it is important to have the mouthguard remoulded by a dentist. Remoulding involves heating the mouthguard and then refitting it to the individual's mouth. This process can ensure that the mouthguard continues to provide adequate protection and comfort.