What are jaw surgery complications?

Jaw surgery: Infection, bleeding, swelling are common . Numbness, malocclusion, relapse are uncommon.

Many and few: Jaw surgery can cause certain short and long term complications. The most long term complication would be loss of sensation due to nerve trauma or nerves that have been severed. The overwhelmingly most common complication would be post-operative swelling. This is normal and usually easily controlled. Most surgeries turn out well, but a few are complicated by unwanted soft tissue changes. Check.

Many but: Many, but uncommon in the hands of a board certified oral & maxillofacial surgeon. Risks include Infection, bleeding, swelling, unsatisfactory cosmetic result, non healing of bones, anesthetic complications.