Staining in tight spaces usually results from plaque buildup, dark drinks, tobacco use, aging, or hardened tartar. The right fix depends on whether the mark is a simple external stain, a buildup issue ...

What Anita Radini noticed under the microscope was the blue—a brilliant blue that seemed so unnatural, so out of place in the 1,000-year-old dental tartar she was gently dissolving in weak acid. It ...

The development of white spots on the teeth—clinically called "decalcification"—can be distressing. These deposits are common, arising due to plaque and tartar build-up, insufficient enamel, and ...