• The natural aging process
  • Using tobacco (smoked or chewed), drinking coffee, tea or red wine.
  • Accumulation of plaque and tartar deposits
  • Treatment with the antibiotic tetracycline during childhood
  • Trauma to the teeth that may cause a brown, gray or black color


There are many reasons for whitening your teeth, including:

  • The boost to your confidence and self-esteem that comes from a great smile
  • A younger appearance
  • A special event such as a wedding, job interview or class reunion
  • To make a positive first impression on others
  • To simply reverse years of everyday staining and yellowing


Before beginning any whitening procedure, be sure to consult with your dentist. Only he or she can evaluate whether you're a suitable candidate for a particular treatment. 

Copyright © 2002, 2003 Colgate-Palmolive Company. All rights reserved.

This article is intended to promote understanding of and knowledge about general oral health topics. It is not intended to be a substitute for professional advice, diagnosis or treatment. Always seek the advice of your dentist or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment.