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Posted by dirtywater on June 05, 2006 at 14:18:10:
In Reply to: dental appliance before MMA??? posted by Chinless Wonder on June 01, 2006 at 14:46:29:
I am also normal weight, with a moderately (not extremely) recessed chin. I don't have any problems swallowing.
My surgeon used a diffent approach to predicting MMA success. She took 2 cephalometric (side view of the head) x-rays. For the first, she had me close my mouth normally, and relax my throat. For the second, she had me jut my lower jaw out as far as possible (think of Jay Leno). According to her, the comparison between the first and the second X-ray is a good indicator of whether MMA surgery will be successful. They can see the width of your airway on the X-ray. If it opens up on the second X-ray, that's a good sign. She also did a full orthognathic work-up that involved taking photographs and molds of my teeth, but the X-ray seemed to be key. I haven't had the surgery yet, so I can't tell you whether her prediction was right :-)
I've heard conflicting things about the dental advancement device. One doctor told me they're going out of style and they tend to cause jaw problems such as TMJ. Another doctor told me that a recent study found that they do not tend to cause problems. I've also heard that if you do get the dental device, you should go slowly with it, to avoid stressing the TMJ.
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