Jaw surgery necessary to correct underbite/open bite?

[PierreDeFermat]

The camouflage will be the least invasive, but the result may not be stable and it most likely will not fix your open bite decisively.

A LeFort 1 osteotomy is your first surgical option and a competent surgeon will insure you do not have nasal base widening. (If not, a secondary rhinoplasty can correct such a deformity). Moving jaws forward is more stable than moving them backwards, and there is far less chance of permanent nerve damage manipulating the maxilla than the mandible. Your surgeon may recommend a segmental osteotomy.

A BSSO is your second surgical option and maybe recommended as an alternative to (or in conjunction with) a LeFort 1, particularly if you want to reduce the prominence of your lower jaw. Traditionally, the maxilla should be advanced rather than the mandible set back as it can negatively affect aesthetics/airway diameter.

Bimaxillary surgery (upper jaw forward, lower jaw back) is your third option and probably will not be recommended because your case isn't too severe.

The issues you're having with your TMJs may or may not be associated with your latent jaw growth, your clinician will be the one to speak to you regarding the specifics of your case.

Your bruxism (grinding) will most likely not be addressed in any case, so you should talk to your dentist about getting a special mouth guard to wear at night.

You may need braces or Invisalign again before, during, or after surgery.

[Speck]

Lynn (board admin.) is very nice. I recommend sending her a PM with your request.