Stuart Dan A, Wiltshire William A
Faculty of Dentistry, University of Manitoba, Winnipeg, Manitoba, Canada.
J Can Dent Assoc. 2003 Jun;69(6):374-7.
A 19-year-old man presented for correction of a malocclusion that included a transverse maxillary deficiency. The patient was informed that he required orthognathic surgery to expand his upper jaw and correct his malocclusion, but he refused surgical expansion. Recent evidence indicates that rapid palatal expansion can be used without surgery in young adults; the decision was therefore made to treat the patient nonsurgically. Rapid palatal expansion of the maxillary arch was accomplished by means of a Hyrax appliance, with post-treatment radiographs revealing an opening of the midpalatal suture. The belief still persists among some clinicians that young adult patients require orthognathic surgery for palatal expansion, despite recent evidence supporting a nonsurgical approach after closure of the midpalatal suture.
一名19岁男性因牙列不齐前来矫正，其中包括上颌横向发育不足。患者被告知需要进行正颌手术来扩大上颌并矫正牙列不齐，但他拒绝手术扩弓。最近的证据表明，在年轻成年人中可以不通过手术进行快速腭开展；因此决定对该患者进行非手术治疗。通过Hyrax矫治器实现上颌牙弓的快速腭开展，治疗后X光片显示腭中缝打开。尽管最近有证据支持在腭中缝闭合后采用非手术方法，但一些临床医生仍然认为年轻成年患者需要进行正颌手术来开展腭部。
