Teeth whitening

Teeth whitening is one of the topics of interest.

Even just scaling makes my teeth sensitive.

Plaque and tartar on teeth through scaling

I heard that they start by removing it.

Protects the boundary between teeth and gums

On teeth coated with protective and whitening agents

They say they shine light using a dental whitening device.

They say they do this process about twice.

Will it hurt?

And even if you apply a whitening agent to this surface

There are no particular side effects later on.

Is there none?