Please recommend a dental clinic in Bucheon, Incheon~!!

I want to get teeth whitening and scaling.

My teeth are weak and it hurts every time I get scaling done, so I'm looking for a dental clinic that does scaling without pain.

These days, they say there are anesthetics like gargles when scaling teeth.

I asked the local dental clinic I go to, but they said there's no such thing...

I hate the tingling sensation every time I get my teeth scaled, so I keep putting it off and not getting it done.

I'm thinking of getting it this year...

Please recommend a dental clinic that does scaling well and painlessly!!

I also want to try whitening, so if there is a place that you have tried whitening and were satisfied with, please recommend it.