Whether you use a DIY kit or have teeth whitening done at the dentist if you use a product or have a treatment done that doesn't use natural elements to whiten teeth you could get hurt. Many products that aren't naturally based use harsh chemicals that can destroy the surface of your teeth, ruin the enamel of the tooth, or even cause nasty chemical burns on the gums. Chemical burns on the gums can take weeks to heal and they are very painful.
The teeth whitening kits that you can buy in stores are notorious for causing chemical burns and the loss of tooth enamel. Because these kits are made to be one size fits all they often don't fit right. When the tray or the strip doesn't fit your teeth exactly right there is a bigger risk that you will get some of the toxic tooth whitening solution on your gums which will cause burns. And the more you use these DIY kits the more damage will be done. Over time these kits strip the enamel from the teeth which can weaken the tooth and cause discoloration or even tooth loss.
Read Full Article: Danger of Teeth Whitening Using Non-Natural Techniques: Chemical Burns