Sandblasting: Effectively resist tobacco stains and tea stains. The price is generally between 80- 120 for outpatients and 0/40-180 for hospitals.
The combination of the two can achieve the best effect.
If you use scaling to wash the cigarette stains, it will cause some damage to the tooth surface, but it is invisible to the naked eye and can only be seen under the microscope. Just eat coarse grains for two days.
I hope it helps you.