Questions I had about teeth whitening

This time, the CacheDoc health concern topic is teeth.

I have many concerns, but I am particularly interested in teeth whitening.

I am curious about the procedure cost and the duration of its effects after the procedure.

Home care methods that can be done at home include applying something like a film, rubbing lemon, and other folk remedies.

I am curious about how the procedure is carried out and the method of the procedure.

If the person who received it could kindly offer some advice, it would be very helpful as a reference.

:-)