Please recommend a dentist in Incheon or Bucheon~!!

I'm planning to get teeth whitening and scaling.

I'm looking for a dentist who can perform scaling without pain because my teeth feel weak and hurt every time I get scaling done.

These days, there are things like anesthetic sprays similar to mouthwash used even during scaling.

I asked at the local dental clinic I go to, and they said they don't have anything like that.

I really dislike the cold sensation every time I get a scaling, so I keep delaying and avoiding it.

I'm thinking of receiving it this year..

Please recommend a dental clinic that performs scaling painlessly!!

Please recommend a place where I can get whitening treatment and was satisfied with the results.