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Hard Acrylic Night Guard for Heavy Grinding This hard custom teeth night guard is for heavy to severe teeth grinding.  It protects your teeth and alleviates jaw muscle aches and pains due to teeth grinding. It is made from a firm, durable plastic (elasticized acrylic) and it's approximately 1.5mm in thickness.  This special thermo-plastic material softens in warm water to facilitate fitting.  At body temperature, the material is slightly pliant and offers a comfortable fit.  Rinse the night guard in warm water and then fit it over your teeth for a perfectly contoured fit.  The night guard is durable and may be used for approximately 2 to 5 years, depending on the degree of teeth grinding. Your purchase includes: An impression kit with instructions to take your teeth impression: we take both upper & lower teeth impressions to guarantee a perfect fit for your night guard All inclusive shipping and handling  One custom made Pro Teeth Night Guard for teeth grinding A ventilated, protective case for your custom night guard for teeth grinding Please note: If you're suffering from TMJ disorder or TMJ disorder symptoms, we do NOT recommend ordering a night guard online.  Please consult your dentist directly.  For more information, see this article about bruxism night guard vs TMJ splint. If you have crowns, implants, or veneers in your teeth, we recommend a soft guard or a hybrid guard instead of a hard night guard.