I was referred to Dr. Griffin by a physician for treatment of a sleep-apnea problem. Previously, I snored like a chain saw and never did really achieve deep sleep. I frequently awoke gasping for air and hiccups were a occasional problem. With the adjustable DNA appliance, my upper arch was slowly expanded over the course of about a year, whereupon I reached my goal. The appliance takes some getting used to, but it is compact and unpowered. It is something like a retainer. I don't have to lug a CPAP "scuba" mask, fan motor and filter along when I travel. Now, the only disadvantage is that I sleep so quietly, my wife sometimes kicks me to make sure I'm alive!
-- Harold S