Misconceptions about mandible reduction procedures.

Mandible reduction procedures are currently very popular in Asian countries. But many misconceptions or differences in concepts about these procedures still exist, mainly because of preconceived ideas and restriction in communication. The author reviewed articles and found some misconceptions about these procedures. Also, the author added some opinions regarding new ideas about these procedures (i.e., minimal incision technique and botulinum toxin), as well as logical backgrounds of associated concepts. The intraoral approach is the safest and most effective procedure. The sagittal split ostectomy is the most important procedure for mandible reduction.