I have this problem aswell!
4 years ago i had good teeth and what my last girlfriend said was a 'beautiful smile'. i had a pretty good social life and was always smiling. 14 years old...
but like all things i didn't know what i had till it was gone.
since then my upper jaw has somehow changed shape and now have the exact same problem you are describing.
my upper front teeth are completely hidden behind my top lip giving me what looks like a gaping black hole instead of...teeth!
its completely destroyed my social confidence and now i have lost many of the friends i once had. im also finding it hard to pronounce some words which fustrates me!
after the last year i realised something had to change. i talked to my parents about my problem which i hadnt yet openly spoke to anyone about.
and to be honest, they we're crap. they dissmissed all of it as a make believe problem when it clearly wasnt!!!
only after 6 months they realised that i was serious. i booked an appointment with an orthodontist and waited about 4 months for it.
the ortodontist finally gave me the help i needed, he told me what the problem was and how it could be solved.
this is what i can remember:
my upper jaw has not grown far enough vertically. therefore in order for the front teeth to meet the bottom teeth they have tilted slightly. thus taking off even more vertical face length.
braces may help the situation but not drastically. he advised that if i really wanted to fix the problem i would need surgery. at this point i asked about the cost, which he summed up at around £10,000. Shocker
he described a rotating and moving down of the maxilla bone in order to give me a normal looking jaw.
however! he told me that if i wanted to go ahead with surgery i would also need to go through a 12 month period of wearing braces. only after this could i get the surgery.
..the prospect of waiting another year was the last thing i wanted to hear, aswell as the HUGE price.
noticing this the doctor informed me that there was a small chance that my jaw was formed in a way that would allow surgery to be performed without the lengthy 'brace treatment'. this would also make it cheaper
im currently waiting for another appointment where i can find out if i qualify. Good luck to anyone else with this problem. i hope this helps