...I don’t know how the hospital you mentioned is like...

I have had my teeth cleaned twice. Let me tell you about my experience...

First, high-pressure wash with acid, then sandblasting, and finally polishing.

I went to a very small outpatient clinic... Yours is a hospital, so there should be one.

My charges at that time were: 80 RMB for teeth cleaning, 50 RMB for sandblasting and polishing, and 130 RMB for dental cleaning.

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Yancheng Yafeng Casting Machinery Wang Xiang from the main factory will give you the answer