When I was young, I felt that the decree lines were getting deeper and deeper, and my lips were getting thinner and thinner, which was a bit ugly?
If your mouth sticks out, ask Juana Ethan. My colleague is doing orthodontics there. She has done many cases and should have rich experience. If you want to make lingual braces, you should ask Ethan if you can do it, but my colleague just made lingual braces and it's completely invisible outside. Want to know more, you can Baidu.