Are there any long-term side effects of tooth whitening?
In the 80 years that tooth whitening has been around there have been no long-term side effects of tooth whitening reported.
Teeth Whitening is safe as long as the teeth whitening gel is used following the correct instructions and used for short periods, as advised, with safe carbamide peroxide whitening gel strengths. Avoid repeated long-term use of anything acidic or abrasive on your teeth as over 10-20 years this will cause enamel damage.