Gum inflammation occurred after scaling at Jeon Dental Clinic in Siheung-si

I went back after getting a scaling because my gums were a little sore, and it turned out I had inflammation. I think it's because they ground away too much of my gum tissue during the procedure... Honestly, even though I've had it done countless times, this is the first time something like this has happened, so I wasn't exactly upset, but
I had no choice but to get a prescription. It seems like it was because a beginner performed the scaling... Other than that, I went on a Saturday and had to wait quite a while, perhaps because there were a lot of appointments... The doctor only examined me for about 30 seconds, and the dental hygienist handled everything—treatment, consultation, and scaling—all at once... I went because it is near my house, and since they offer evening appointments, I think it wouldn't be too bad.