It is suitable for people with bilateral asymmetry such as stenosis or hypertrophy caused by mandibular angle development disorder or unilateral hyperplasia.

Effect and method of corrective surgery for crooked chin;

X-ray examination should be carried out before chin deviation correction operation to exclude other diseases and determine the treatment scheme. Mark the midpoint of the chin before correcting the deviation of the chin. The body surface is perpendicular to the midline of the face, and then horizontal osteotomy of the chin is performed, or secondary osteotomy is needed to restore the midline of the chin deviating from the midline of the body surface.

1. Transverse and horizontal osteotomy.

2. Cut off too many parts on one side; 3. Move the cut bone piece to another defect area.