The best device depends on the patient. That is why the STATDDS Sleep and Bruxism Hime Sleep Monitor is a much needed tool in all dentist’s toolbox… you have the ability to evaluate the patient’s grinding/ clenching to guide the dentist in the best device. For instance, a Somnomed is a wonderful appliance … but with the STATDDS that would help you decide on Flex wings or not… depending on the amount of bruxism occurs in that patient. Also, if the patient has short teeth, less retention and/or undercuts . Hope this helps.