hi guys
i have 3 questions,about the surgery which concern me:
1)If the underbite is corrected,only with lower jaw surgery,lets say...12mm setback,will be there enough space for tongue in the mouth?
2)How can be done damaged to the TMJ during surgery?Can damage be done while doing BSSO?i mean,the are operated in this surgery isnt awya from TMJ?
3)A rare complication is facial nerve trauma..I think this can be done when inserting the screws.Has anybody had his facial nerve damaged?And if yes,can it be corrected?
3 questions
Moderator: bbsadmin
Hiya, sorry don't really know the answers to the others questions as i had the oposite - an overbite!
i think the nerves are always damaged on every patient. After my op 7 weeks ago mine my face was completly numb all over but most of the feeling came back after 2 weeks. The lip and Chin though as i was told are the last places to come back and i still cant feel either now, im told they will take up to a year to come back and if they havent come back by a year they probably never will.
i think the nerves are always damaged on every patient. After my op 7 weeks ago mine my face was completly numb all over but most of the feeling came back after 2 weeks. The lip and Chin though as i was told are the last places to come back and i still cant feel either now, im told they will take up to a year to come back and if they havent come back by a year they probably never will.
John,
1) Not sure about this. I had a slight setback (1-2 mm) and haven't noticed anything diffent.
2) I had BSSO and my TMJs weren't bothered. The OS (oral surgeon) makes the incision behind your molars. This is a good Website that explains it and shows the incision sites:
http://herkules.oulu.fi/isbn9514267508/html/c237.html
3) There is usually some sort of trauma due to the nerves being stretched during surgery. My surgeon told me they always know where the major nerve, the inferior alveolar nerve (IAN) is. It is about the diameter of a piece of spaghetti. I don't know how a surgeon could accidentally put the screws in the wrong place, but the OS could (very rarely) accidentally sever the major nerve and then it would need to be re-sutured together. I have read that nerves heal at a rate of 1mm per day, so it would take about 25 days for one inch of progress.
I'm not a medical professional; this is mainly research and experience. I hope it helps!
Lo
1) Not sure about this. I had a slight setback (1-2 mm) and haven't noticed anything diffent.
2) I had BSSO and my TMJs weren't bothered. The OS (oral surgeon) makes the incision behind your molars. This is a good Website that explains it and shows the incision sites:
http://herkules.oulu.fi/isbn9514267508/html/c237.html
3) There is usually some sort of trauma due to the nerves being stretched during surgery. My surgeon told me they always know where the major nerve, the inferior alveolar nerve (IAN) is. It is about the diameter of a piece of spaghetti. I don't know how a surgeon could accidentally put the screws in the wrong place, but the OS could (very rarely) accidentally sever the major nerve and then it would need to be re-sutured together. I have read that nerves heal at a rate of 1mm per day, so it would take about 25 days for one inch of progress.
I'm not a medical professional; this is mainly research and experience. I hope it helps!
Lo
john21,
To answer question #1:
I had my severe Class III corrected six weeks ago, with LeFort I (upper) AND BSSO (lower). My total change was about 12mm (maxilla advanced 5, mandible set back 7). I think that I read somewhere that 10mm is the standard for maximum surgical movement, otherwise stability becomes a greater issue. Of course, your surgeon/orthodontist will look at your profile, and assess where your deficiency might be, and then propose the appropriate treatment. Some people have a Class III due to an underdeveloped maxillary arch, and some due to an overdeveloped mandible. My case was a combination of both, which I understand is pretty common among Class III.
I have heard of cases where they do surgery to reduce the tongue in drastic setback cases. Ask your surgeon about this.
Check out the facts yourself, but a setback of 12mm sounds like a lot of movement!
To answer question #2:
A skilled surgeon should know how to deal with the temporomandibular joints during surgery. I would think that risk of damage to them would be very small. Proper orthodontics/surgery should ultimately improve their function, if there was any problem with them before.
I think that Lo did a great job of answering #3!
Good luck!
To answer question #1:
I had my severe Class III corrected six weeks ago, with LeFort I (upper) AND BSSO (lower). My total change was about 12mm (maxilla advanced 5, mandible set back 7). I think that I read somewhere that 10mm is the standard for maximum surgical movement, otherwise stability becomes a greater issue. Of course, your surgeon/orthodontist will look at your profile, and assess where your deficiency might be, and then propose the appropriate treatment. Some people have a Class III due to an underdeveloped maxillary arch, and some due to an overdeveloped mandible. My case was a combination of both, which I understand is pretty common among Class III.
I have heard of cases where they do surgery to reduce the tongue in drastic setback cases. Ask your surgeon about this.
Check out the facts yourself, but a setback of 12mm sounds like a lot of movement!
To answer question #2:
A skilled surgeon should know how to deal with the temporomandibular joints during surgery. I would think that risk of damage to them would be very small. Proper orthodontics/surgery should ultimately improve their function, if there was any problem with them before.
I think that Lo did a great job of answering #3!
Good luck!
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eggraid101
- Posts: 86
- Joined: Mon Aug 06, 2007 11:39 am
- Location: Leesburg, VA
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eggraid101
- Posts: 86
- Joined: Mon Aug 06, 2007 11:39 am
- Location: Leesburg, VA
Thanks for the answers!
Whoa,Phil,reduce the tongue???Hell,no.I would not do this!I will put a link here to a greek site which has after and before photos of overbite,underbite and i think the second is assymetric underbite.
http://www.pepagnh.gr/pnh_klinikes/gnat ... malies.htm
The second guy's underbite is excactly like mine..from the profile.And it has been corrected with BSSO and genioplasty.What do you think?
Whoa,Phil,reduce the tongue???Hell,no.I would not do this!I will put a link here to a greek site which has after and before photos of overbite,underbite and i think the second is assymetric underbite.
http://www.pepagnh.gr/pnh_klinikes/gnat ... malies.htm
The second guy's underbite is excactly like mine..from the profile.And it has been corrected with BSSO and genioplasty.What do you think?