I have been using a buprenorphine patch for several years and while it is effective in controlling pain and reducing the symptoms of RLS, it can have serious side effects.
I have recently had problems with my teeth, healthy teeth have been crumbling. Because of a very painful infection, I had to have emergency dental treatment. It seems that a side effect of Buprenorphine is that it can inhibit the production of saliva, which is essential for oral health.
I had to have four teeth extracted and it is not certain that the rest can be saved.
I have to say that I am still in shock and I wouldn't like others to have similar experience.