Shipley Thomas S
Private Practice, Peoria, AZ 85345, USA.
Arizona School of Dentistry & Oral Health, A. T. Still University, Mesa, AZ 85206, USA.
Dent J (Basel). 2018 Jul 12;6(3):32. doi: 10.3390/dj6030032.
Evaluation of the effect of a high frequency acceleration device (HFA) on clear aligner exchange intervals and treatment time required to achieve prescribed tooth movements. Sixteen subjects with similar Class I malocclusions, ≤5 mm crowding, and treated with aligner orthodontic therapy (Invisalign) were divided into two groups. Group 1 (experimental; = 8) underwent aligner treatment in conjunction with daily use of the HFA device and exchanged aligners every five days. Group 2 (controls; = 8) underwent aligner treatment without use of the device and exchanged aligners every 14 days according to the manufacturer's recommended interval. All subjects were treated by one investigator, and results-total number of aligners used, and number of refinements required-were evaluated by both prior to final mobile retention (Vivera) scan. A significant decrease in both treatment time and number of aligners required to complete treatment was observed by HFA subjects vs. controls. In addition, no refinements were required by HFA subjects, whereas six of eight control subjects required one or more refinements. The results of the present preliminary report showed that the use of the HFA device in conjunction with aligner orthodontic treatment resulted in a significant decrease in the length of treatment. Moreover, the number of patients requiring refining treatment was significantly lower.
评估高频加速装置（HFA）对透明矫治器更换间隔以及实现规定牙齿移动所需治疗时间的影响。16名患有相似I类错牙合、拥挤度≤5mm且接受矫治器正畸治疗（隐适美）的受试者被分为两组。第1组（实验组；n = 8）在每日使用HFA装置的同时接受矫治器治疗，每5天更换一次矫治器。第2组（对照组；n = 8）在不使用该装置的情况下接受矫治器治疗，并根据制造商推荐的间隔每14天更换一次矫治器。所有受试者均由一名研究者进行治疗，在最终活动保持器（Vivera）扫描前，研究者对结果——使用的矫治器总数以及所需的精细调整次数——进行评估。与对照组相比，使用HFA的受试者在治疗时间和完成治疗所需的矫治器数量上均显著减少。此外，使用HFA的受试者无需进行精细调整，而8名对照组受试者中有6名需要进行一次或多次精细调整。本初步报告的结果表明，HFA装置与矫治器正畸治疗联合使用可显著缩短治疗时间。此外，需要进行精细治疗的患者数量显著减少。
