I'm writing this because a lot of people seem to be curious . Of course, I did it behind my ears too. I came here before the surgery and read a lot of posts, but I don't think there are any answers that are exactly what I want. Of course, each person is different, right? The things I was most curious about before the surgery were that there was no frontal effect if I put it behind the ear, but it was about whether there was a frontal effect or not, and it was about swelling. I will explain only what I know . First of all, it seems that square jaw surgery that is generally performed in the mouth can be viewed in two major ways . Therefore, the front jaw must be cut in a T-shape and then reattached. Now, it's a square jaw behind the ear. Comparing it with a mouth incision, the square jaw surgery behind the ear can be just matched with the square jaw surgery, and the square jaw surgery behind the ear + filler seems to have a similar effect to the V-line square jaw surgery. In the square jaw surgery behind the ear, if the front jaw is not slim, the front jaw is surgically cut and reattached, and a permanent filler is used instead. Cut it long from the back of the ear to the front, and make a V-line with filler at the end. Is there a big difference in cost, swelling, and risk of surgery? In my view, in terms of cost, normal mouth incision square jaw = square jaw behind the ear + filler So, if the frontal effect is important and you want to save time and money for swelling, you can use a square chin and filler behind the ears. You do this by lifting your muscles upwards. I don't want to make a Dayamond type haha Mmm, the director decides on his own. And the swelling is very different depending on whether the square jaw behind the ear is cut long. Of course, you can go around on the 3rd day, but if you can't, it's better to take it for a week. There were a lot of people who said that the frontal effect wouldn't work if I put it behind my ears, so I was worried a lot. I think the front came out better. I guess it's different for each person. Anyway, it's possible to do the V-line surgery behind the ear enough; I think the advantage is that it is advantageous in terms of cost and swelling .