References in periodicals archive ?
In this feature, Babakhanov discusses extrinsic and intrinsic stains, offers examples of each, and shares safe treatment options.
Extra White is clinically proven to safely and painlessly remove surface and intrinsic stains for whiter, brighter teeth, while also significantly improving periodontal health.
'Both can be improved, but intrinsic stains are trickier to fade.' The fix: To get teeth back to a youthful shade of white, dentists bleach (whiten) them using hydrogen peroxide gels.