Many dentist are worried that teenagers are putting their teeth and oral health at risk by trying dangerous do-it-yourself teeth-whitening techniques found on the Internet. Many teenagers go to on line tips of do it yourself whitening since money and access to proper dental whitening care may not be in their reach.  However Children who are mixing  up quantities of different chemical and applying them for long periods of time are at risk of eroding their tooth enamel and damaging their gums. In turn increasing their risk of oral infection. The best course of action is to talk to your dentist about safely whiting your teeth or what over the counter product they my suggest to be use.