As biomaterial and biomechanics have been growing and developing rapidly, the indication of clear aligner treatment has been broadened from simple crowding or spacing to moderate malocclusion including either extraction or non-extraction cases. Considering the advantage of its prospective three-dimensional digital planning as well as the disadvantage of limited capability of three-dimensional tooth movement control, orthodontists have to be fully aware of the characteristics and weakness of this appliance so as to choose proper indications and achieve good treatment results. Meanwhile, orthodontists also have to play an important role in modifying the three-dimensional digital plan with pouring in their clinical experience on treating cases and estimating different tooth movement efficiency in various kinds of malocclusions.
近年，在材料学和生物力学领域不断创新的影响下，无托槽隐形矫治技术的治疗范围逐步扩大，从简单的拥挤排齐、间隙关闭到轻中度错 畸形的减数或非减数治疗。然而，无托槽隐形矫治技术既有前瞻性三维设计的独特优势，也有牙齿移动三维控制方面的不足，因此正畸医师必须全面了解无托槽隐形矫治的特点，才能选择适合的病例进行矫治，进而提高矫治效果。同时，正畸医师也需在三维矫治方案设计中充分发挥临床经验、充分预估不同类型牙齿移动实现效能的差异，以达到最佳的临床效果。.
Keywords: Clear aligners; Orthodontic appliances, removable; Orthodontics, corrective.