question about millimeters

[Guest guest]

I've tried looking in the message search for an answer, it did me no

good... Anyway, I'm supposed to have surgery in a month or two for an

open bite. What I'm wondering is if anyone has heard of surgery for

changing a bite by 3 mm. 3 millimeters seems so negligible as to not

warrant any surgery. My upper jaw is supposed to be moved 3 mm

forward and slightly upward (up so I don't end up with a gummy smile).

My os has just mentioned some pretty major things regarding my

surgery (besides the number of millimeters) as sidenotes. Which, are

causing me to question my decision. I feel a bit deceived to be

honest... I'd like to know what the least number of millimeters of

movement via surgery any of you have heard of is.

Thanks, Lara