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Why do you need braces before the surgery?

When jaws differ in size, teeth come in contact to some extent, but their position and inclination inside the jaw bones is incorrect and non-physiological most of the time. Therefore, teeth need to be aligned and dental arches need to be reshaped, otherwise dental arches will not fit one another during surgery. During orthodontic setup teeth may be proclined or retroclined and result in a bigger or smaller overjet of teeth and therefore, in a bigger or smaller jaw movement at the time of surgery. Facial features determine the preferred amount of jaw movement which is critical in achieving facial harmony, but in order to perform the preferred movement, proper orthodontic preparation of teeth and decompensation of dental arches must be completed. If the correction of inclination and position of teeth is underperformed and dental arches are not set properly, there is a greater risk of unstable bite after surgery and there is some risk for the recurrency of malocclusion, and of course, facial imbalance may remain undercorrected. Teeth move slowly inside the bone, therefore, orthodontic treatment takes quite a long time – from 12 to 18 months.
 
 
 
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