Weaver N, Glover K, Major P, Varnhagen C, Grace M
University of Alberta, Dentistry/Pharmacy Centre, Edmonton, Canada.
Am J Orthod Dentofacial Orthop. 1998 Feb;113(2):156-64. doi: 10.1016/s0889-5406(98)70287-2.
Canadian orthodontists were surveyed by mail to determine the latest skeletal age at which they would recommend orthopedic therapy and orthognathic surgery and the earliest at which they would recommend orthognathic surgery. For the purposes of this introductory study, orthopedic therapy implied stimulation of physiologic response using appliance force, without specification of appliance type. Response rate from 512 orthodontists was 65% (n = 334), with the response rate by item varying from 92% to 95%. By Greulich and Pyle standards, the latest recommended age for orthopedic therapy was at 97% completion of skeletal growth (females 13.5 years, males 15 years), whereas the earliest recommended age for orthognathic surgery was when skeletal growth is 99% complete (females 14.9 years, males 16.5 years). Surgery would be recommended by 32% of respondents for a patient before the age of 8 years, if deformity is severe. For orthognathic surgery, respondents either perceived no age maximum or recommended 69 years, the maximum age on the questionnaire item. Orthodontists' traits influenced recommendations for timing treatment.
通过邮件对加拿大正畸医生进行了调查，以确定他们建议进行正畸治疗和正颌手术的最晚骨骼年龄，以及他们建议进行正颌手术的最早年龄。在这项初步研究中，正畸治疗是指使用矫治器力量刺激生理反应，未具体说明矫治器类型。512名正畸医生的回复率为65%（n = 334），各项目的回复率在92%至95%之间。按照格罗利希和派尔标准，正畸治疗的最晚推荐年龄是骨骼生长完成97%时（女性13.5岁，男性15岁），而正颌手术的最早推荐年龄是骨骼生长完成99%时（女性14.9岁，男性16.5岁）。如果畸形严重，32%的受访者会建议为8岁前的患者进行手术。对于正颌手术，受访者要么认为没有年龄上限，要么推荐问卷项目中的最大年龄69岁。正畸医生的特征会影响治疗时机的建议。
