Whitening Warning: Bleaching Blunders Can Have Painful Effects - Houston Chronicle

Whitening Warning: Bleaching Blunders Can Have Painful Effects Houston Chronicle “That's the number one mistake made by people who try to do too much too quickly, or who accidentally leave the trays in too long,” says Dr. Steffens. “Leaving any bleaching agent in your mouth longer than 30 minutes is a major blunder. and more »