People with healthy teeth and gums but who have stains or a yellowish tint seem to get the best result.
You will not experience any heat or discomfort. On some occasions, you may feel a little tingling or perhaps a slight sensitivity. Teeth and/or gums may be sensitive for a short time after treatment.
You may see temporary bleaching to the gums but this is normal and will disappear, usually in less than a day. your teeth will never be whiter than your genetic traits.
All teeth bleach differently. Possible white spots or demineralization may appear on people who have had braces or who have porous enamel, but this will disappear within 24 hours.
The treatment will not whiten or damage veneers, crowns or false teeth.