Did Mayo Clinic test you for serinegative Sjogrens? I was tested for it came up positive. The thing I dislike the most is I had my teeth cleaned six months ago and went back. I need seven crowns from cavities. I brush, floss, use a water pick along with using prescription fluoride.
The test include brain scan,
lip biopsy and two eye test to check for dry eyes and scratches on the cornea. They can also biopsy the salvia gland.