Overjet correction without surgery, does functional appliances work on teenagers as well?

[cobblepot]

Hi, I am 15. And I have developed an overjet, months after I got my braces of (had them for 3 years) probably from oral breathing. I've done a bit of research, and functional appliances are my best bet. At this age, I probably missed my growth spurt, which I could've developed a strong jawline (genetics play a big factor on facial structure development, which my father and my siblings have nice square jaws) but instead I developed a vertical jaw (v-shaped jaw) which really bugs me. My upper teeth seems to stick out, if I don't clench my front teeth together, and gives me a receded chin. I feel really insecure about my jaw even though people do find me attractive. It doesn't seem normal to me, rather it looks quite feminine. From what I've read about, functional appliances are effective on young children (probably aged 6 onward?) and the results are really unreal. It seems that they help on promoting horizontal growth (I saw a picture of a young girl with a vertical jaw, and she has a strong horizontal jaw after treatment), but I worry about my age. Maybe it's too late because my growth is slowly coming to an end? But I do hear that the mandible continues to grow further up to 18 onward. I don't know, but some men do get more square and defined jawlines as they age. I don't know whether functional appliance still works for me, and help my jaw to develop horizontally. I can't get treatment as soon as possible because my family and I just migrated to Canada (Alberta) about 2-3 months ago, and my parents doesn't have any source of income at the moment. I wouldn't risk having jaw surgery as if there are many alternatives to it. I wouldn't like any cosmetic procedures done as well (implants and fillers) as it doesn't really fix the problem which is my jaws and teeth. I'm quite underweight (Weighing only 59 kgs, 5'8 ft tall) so maybe if I work out, maybe I'll developed those jaw muscles and probably give me stronger jaw? (Since most bodybuilders and physically fit people do have square and strong jawlines, I'd probably give it a go) If anyone of you have been through this, your suggestions would be greatly appreciated. Thanks in advance

[lmk]

I wanted to comment even though I don't have any information about functional appliances. A males jaw isn't fully grown at age 15. You are still young and most likely your jaw will change as you age. Hope that gives you a little peace of mind. Most orthodontists offer a free consultation, so I would suggest having your parents make an appointment just to hear what the Dr. would suggest and they will be able to answer all of your questions as well.