Both methods are good, just choose the one that suits you. If you want to make it permanent, it is recommended to make a prosthesis. If you want to recover quickly, it is recommended to make a line carving. Line carving generally works with hyaluronic acid, and the effect is good. It usually lasts for about a year or two. If it is a prosthesis, it usually takes about a week to recover. The recovery is generally red and swollen, and the dressing is not as convenient as thread carving. However, the restored effect is similar to that of line carving, which is permanent and is also adopted.