There are number of reasons why teeth can change color. Some common reasons are listed below:
Most whitening products contain either hydrogen peroxide or carbamide peroxide as their main ingredient. These break stains down into small pieces reducing their concentration and allowing your teeth to shine brighter.
It is important to discuss with your Dentist which option is best for you before moving forward. Here are the most common methods for bleaching:
It is important to note that whitening should only be done after discussing with your dentist, to avoid long-term damage to your teeth. Some people report temporary tooth sensitivity after whitening sessions. This happens when the whitening agents make their way to the internal layer of the tooth and cause irritation to the nerves.