I have had an excess of tartar for many years and I have had Candida for many years. A dentist once told me that because I had really good teeth, there would be more tartar. Always sounded a little odd to me, so maybe it IS the Candida.
I am on the Master-Cleanse Cleanse right now (yes, I know, I shouldn't be with Candida), and as I detox, I have LOTS of tartar.