Tooth grinding during sleep is a very common habit, which not only leads to teeth cavities and periodontal problems, but it can also make your teeth weak and sensitive. Therefore, Dr. Syeda Amina R. Bukhari. D.D.S recommends nightguards for patients to have a habit of excessively grinding their teeth during sleep. However, nightguards offer only symptomatic treatment. It is essential that the underlying cause of night-time tooth grinding be diagnosed and managed properly to prevent permanent damage to your teeth and other dental structures.