NTI device is a modified anterior bite stop which prevents your back teeth from contacting as well as your canine teeth from contacting while worn. This device is used to treat headaches and muscle soreness due to TMJ problems or malocclusion. The NTI device is also approved by the FDA for treatment of migraine headaches. The NTI device is fabricated in the office and is very effective and conservative treatment for headaches and TMJ problems. For more information, log on to www.nti-tss.com .