At-Home Whitening Process using Custom Made Trays:
Many over-the-counter products are available for whitening teeth without dentist supervision. However, for the most effective and safest whitening treatment, the American Academy of Cosmetic Dentistry recommends using custom-fitted mouth trays made by your dentist. Tooth whitening gel can leak out of ill-fitting trays causing irritation to your gums, as well as not whitening as efficiently as custom trays. With trays that specifically fit your mouth and bite, you can avoid these problems.
Before starting the whitening process, it is strongly recommended to have a professional cleaning done and treat any gum disease. The dentist would take upper and lower impressions to fabricate the custom trays. Then you will receive the trays and the bleaching solution to use at home. Please follow the instruction on how much bleaching solution to apply.
Patients are often amazed at how much whitening takes place during this time, and an occasional treatment now and then is all you'll need to keep your teeth looking their best. Some patients do notice some tooth sensitivity to cold during the course of at-home whitening within one to three days after completing the whitening process, however, the sensitivity usually disappears