Harris K P, Weinberg M, Sadowsky C
Department of Orthodontics, University of Illinois at Chicago, College of Dentistry 60612, USA.
Am J Orthod Dentofacial Orthop. 1997 Jun;111(6):640-5. doi: 10.1016/s0889-5406(97)70316-0.
This case report shows the need to extract four first premolars in addition to orthognathic surgery, even though the initial treatment plan involved a nonextraction strategy. The extractions were necessary to reduce maxillary dental protrusion and proclination and also to recover from the mandibular incisor proclination that occurred as a consequence of leveling the mandibular arch.
本病例报告显示，尽管初始治疗计划采用不拔牙策略，但除正颌外科手术外，仍需拔除四颗第一前磨牙。这些拔牙措施对于减少上颌牙前突和牙倾斜以及纠正因整平下颌牙弓而导致的下颌切牙倾斜是必要的。
