John Has A Hard Time Breathing Because He Wears Dentures

john has a hard time breathing because he wears dentures and says he feels plugged up all the time and drainage goes under the top denture. When he removes dentures, he feel better. he uses a Vicks stick to help and this seems to unblock his passages. Any thoughts? his dentures are 40 years old and work fine except to retain fluid. I would think dentures are new and improved!!! haha I guess i should be asking a dentist??