Teeth whitening is generally less effective at treating intrinsic stains. These discolorations occur within the tooth due to factors like trauma, certain medications, or aging.
Professional teeth whitening can lighten intrinsic stains to some extent. However, it may not completely remove them.
For more severe intrinsic discoloration, your dentist may recommend alternative treatments. For example, veneers, bonding, or crowns can help you achieve a more uniform and natural-looking smile.