In a nutshell, whitening gel contain peroxides which are H2O2 molecules. H2O2 interact with organic stains (chromophores) inside teeth and break them up into more simple molecules.
A tooth is made of three parts: Enamel (outer layer), Dentin (Middle layer), and pulp (inner layer). The pulp as all the nervers that makes us feel temperature or pain. Two types of nerves are present in everybody’s teeth A-Delta and C fibers. These two fiber types are responsible for 3 types of tooth pain.
For new parents it is important to monitor you baby’s milk teeth as they erupt. Baby teeth (primary teeth) can cause discomfort as they erupt, and knowing the time they are supposed to come in can prevent unnecessary worry.