Night Guard - every 6 mo.For existing NewSmile customers only. New customers in need of night guards click here Once you finish with NewSmile clear aligners, and have achieved the smile you always wanted, wear a night guard to protect your teeth from grinding and gnashing. Each set comes with a top & bottom guard. Teeth grinding and clenching can cause significant damage to your teeth, leading to wear, fractures, and even tooth loss. A night guard acts as a protective