What can i use to put on my gum shield to whiten my teeth ?

Varies: If you are doing whitening at home and if you have proper fitting trays gel should not go on gums..Ifyou aredoing inoffice dentist will use liquidam isolation material and other means and ensure gel doesn't penetrate on gums..As the concentration is much higher than take home ..

Teeth whitening: Beware of the do it yourself teeth whitening. Because you can damage your teeth and tissues. The safest way is to see a dentist