A night guard is the proper term and device designed to protect teeth against damage caused by teeth grinding (Bruxism). Over time, this can lead to worn-down teeth, increased sensitivity, jaw pain, headaches, and even cracked teeth. A night guard acts as a protective layer as it creates a physical barrier to absorb the force of the grinding, preventing wear on the teeth. 

. Unlike retainers, they’re designed to last and provide maximum protection. Retainers are used to stop the teeth from moving from the new position after wearing braces or other alignment treatment. 

Custom-made night guards are particularly important because they fit perfectly to your teeth, ensuring comfort and stability while you sleep.