Berger J L, Pangrazio-Kulbersh V, Borgula T, Kaczynski R
University of Detroit Mercy, School of Dentistry, Detroit, Michigan, USA.
Am J Orthod Dentofacial Orthop. 1998 Dec;114(6):638-45. doi: 10.1016/s0889-5406(98)70195-7.
At the present time no reports are available on the stability between orthopedic and surgically assisted rapid palatal expansion. This study was designed to examine and compare the dental and skeletal changes over time for both orthopedic maxillary expansion and surgically assisted palatal expansion. The study was divided into two groups. Group one was orthopedically expanded and consisted of 14 males and 10 females. The ages ranged from 6 years to 12 years with a mean of 8.5 years. Group two received surgically assisted rapid palatal expansion and consisted of 12 males and 16 females with ages ranging from 13 years to 35 years and a mean age of 19.25 years. All 52 subjects were white, from the same geographic area, and were treated by the same two operators. Dental models and posterior anterior cephalograms were obtained immediately before and after expansion, at removal of the expansion device, and 1 year after removal of the appliance. A repeated measures analysis of variance test was applied to assess changes over time between groups. The surgical and nonsurgical techniques displayed similar trends over time although the surgical group contained a greater quantity of expansion. Both the orthopedic and the surgical groups showed stable results.
目前尚无关于正畸扩弓与外科辅助快速腭扩展稳定性对比的报道。本研究旨在观察并比较正畸上颌扩弓与外科辅助腭扩展随时间推移产生的牙齿及骨骼变化。研究分为两组。第一组接受正畸扩弓，包括14名男性和10名女性。年龄范围为6岁至12岁，平均年龄8.5岁。第二组接受外科辅助快速腭扩展，包括12名男性和16名女性，年龄范围为13岁至35岁，平均年龄19.25岁。所有52名受试者均为来自同一地理区域的白人，且由同两位医生进行治疗。在扩弓前、扩弓后、拆除扩弓装置时以及拆除矫治器1年后均获取了牙模和头颅正侧位片。采用重复测量方差分析来评估两组随时间的变化。尽管手术组的扩弓量更大，但手术和非手术技术随时间呈现出相似的趋势。正畸组和手术组均显示出稳定的结果。
