As we age, our teeth naturally tend to shade darker and darker. In addition to smoking, red wine, coffee and tea and other dietary choices can also lead to dull, stained, yellowing and discoloured teeth. A professional teeth whitening at North Oshawa Dental is fast and easy and offers brilliant results. We have a variety of teeth whitening opens available including custom-fit whitening trays and our in-office Zoom laser tooth whitening system.