How often does anyone take their dog(s) to the vet for teeth cleaning? And at what age? My Sadie's teeth have always been clean & white down to below the gum line, but now the vet is telling me that she "should have it done" (to the tune of a pretty hefty charge, of course) because there is some tartar buildup around the back teeth on one side and that could potentially cause some gum disease problems, etc. etc., etc.
Any thoughts or advice?