It was corrected 2-3 years ago, and I am very satisfied now. Below, I will list some of the advantages and disadvantages. The biggest problem is that the crackling noise when I open my mouth is gone, and my jaw doesnt hurt. Disadvantages 1. Street! The author, who lives in Seoul, is not easy to get to Suwon by public transportation. 2. Too many people. But I rather believed in it. Its a hospital that doesnt advertise much, but there are a lot of people? I went there through an acquaintances introduction, and I also recommended it to my acquaintances...