Voss H
Fortschr Kieferorthop. 1989 Jun;50(3):213-9. doi: 10.1007/BF02168743.
Removable/functional appliance therapy can still be further expanded and developed. Retentive elements in the anterior region increase anchorage. Thereby, active forces can be utilised without anchorage loss. Functional appliances are indicated following extraction, to maximise on tooth migration. In first molar extraction cases, treatment with activators is relatively straightforward. When considering premolar extraction cases with possible need for extraction later of the third molars as well, then one should consider extraction of the first permanent molars. With correct use of the appliance, it is possible to optimally align the second molar teeth as well as favourably influencing the soft tissue profile.
可摘式/功能性矫治器治疗仍有进一步扩展和发展的空间。前部区域的固位元件可增强支抗。由此，可在不丧失支抗的情况下利用矫治力。拔牙后应使用功能性矫治器，以最大限度地促进牙齿移动。在拔除第一恒磨牙的病例中，使用肌激动器进行治疗相对简单。当考虑可能后期还需要拔除第三恒磨牙的拔除前磨牙病例时，则应考虑拔除第一恒磨牙。正确使用矫治器，有可能使第二磨牙达到最佳排齐效果，并对软组织侧貌产生有利影响。
