Talk to Dentist on Lupus And Dental Problems

I am an SLE patient with reduced saliva production. Some dentists say I also have stains on my teeth. Recently, i recovered from sinusitis and both the ends of my jaws felt stiff off and on. I don't know if wisdom teeth are involved. In addition to this, a dental filing has become loose. My face has also swelled with infection. Do let me know what could be the possible treatment. My neck also feels heavy and i feel some kind of irritated nerve at the back of my neck. The taste of food has also become different. What could be the possible treatment ? Also can i ever have a dental filling lasting for years with the reduced saliva ? My previous filings only lasted for 6 months maximum.