I like Dream Seoul Dental Clinic in Yeonhui-dong.

When I moved to Seoul for college, I happened to visit a local dentist, and I've been going here ever since. Seeing people stay in the same neighborhood for so long tells me it's a place worth going to. Dentists are usually scary and a bit of a turn-off, right? But the dentist here is gentle, and his treatments are gentle and painless. He's also incredibly conscientious and doesn't overtreat, which is especially nice. My mom is picky and very fearful, but she only goes to this dentist. If you live nearby and haven't settled on a dentist, give this one a try.