Jaw surgery, also known as orthognathic surgery, is a procedure that is performed to correct abnormalities in the jawbones or teeth. The surgery is usually done to improve the patient's ability to speak, chew, and breathe, as well as to enhance their facial appearance. The procedure involves moving the upper or lower jaw, or both, into a new position to correct issues such as a misaligned bite, jaw pain, difficulty chewing or speaking, or sleep apnea. The surgery is usually performed under general anesthesia, and the recovery period can vary from a few weeks to several months depending on the extent of the procedure.