Kathie lives in San Francisco and visits family in North Reading, MA. She has tried all kinds of whitening gels to improve the appearance of her gray, stained teeth, caused by the antibiotic tetracycline. Unfortunately, gray stains like these are the most difficult teeth to whiten. We used the Deep Bleaching Method developed by Dr. Rod Kurty, and she was totally amazed at her results. This method can be used on teeth that have been resistant to previous attempts at whitening. Call our Wilmington dental office for a complimentary teeth whitening consultation to see how you can get the whitest teeth possible.