I like Gyeongbokgung Sky Dental Clinic in Changseong-dong, Jongno-gu.

I went to this hospital a couple of years ago because my wisdom tooth was decaying. The director said half of it had broken off and was missing. It was so badly decayed that I even had root canal treatment. The director didn't recommend overtreatment, and only recommended the necessary treatment. Before coming here, I went to a dentist near my office. They didn't even mention the decay and gave me an estimate of 2.5 million won for a full-tooth resin treatment. Since decayed teeth are covered by insurance, they didn't seem to care. But this hospital only did the front part of the resin, and since the inside wasn't visible, they recommended using the insurance coverage. So I did, and the cost was cheaper than I expected. I was worried about the pain of root canal treatment, but they were incredibly helpful and made it almost painless. The tsundere-like female director is the best. I'll share the location.