FAQ 常见问答题

Patients in Western countries generally do orthodontic correction first, do jaw surgery after tooth shape adjustment, and then make secondary adjustments to tooth morphology after surgery recovery to achieve relatively perfect results; But many patients in China, hope that their facial contours, in a short period of time to be improved, unwilling to spend a year or two to do orthodontic correction, in this case, as long as the teeth do not affect the operation, such as the root of the tooth does not affect the alveolar bone, osteotomy line, etc., can directly lower the jaw surgery, and then carry out orthodontic treatment, which saves time, and the orthodontics after surgery is simpler, which is more in line with China’s national conditions.


For simple malocclusion, not accompanied by obvious jaw deformity, such as crowded teeth, dentition gaps, etc., simple orthodontic treatment can be used to achieve satisfactory correction results through tooth movement; However, for skeletal occlusal facial deformity, orthodontic treatment of tooth movement is far from enough, and can only be corrected through the combination of orthodontics and orthognathic surgery.


If orthodontic treatment has been done before the operation, the teeth are arranged neatly, and the dental space left after the operation is normal or close to normal, you can not do orthodontic; In fact, we found that a considerable number of patients, even if there is a certain gap in the teeth after surgery, but because it is hidden in the mouth, it is not easy to find, and they do not have orthodontics; Of course, for those who have not done orthodontics before surgery, the postoperative tooth spacing is too large or uneven, and the patients have high cosmetic requirements, and orthodontic adjustment is still needed.


For mild and moderate mandibular retraction or protrusion, the surgical requirements can be satisfied only by osteotomy under the mandibular root tip, moving the osteopath, tooth structure or sagittal splitting of the mandibular. For severe retraction or protrusion, due to the limited mobility of the above structures, even if the mandible is moved to a maximum extent, it still cannot meet the requirements of normal occlusion. In this case, maxillary surgery is often required at the same time to achieve normal occlusion and aesthetic requirements.


For the impact of massetic muscle, it must be taken into account, because some operations will involve the opening and closing function, and the dissection during surgery will lead to changes in the direction and force of muscle action.


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