多曲唇挡的设计、作用及临床应用

The Design, Functions and Clinic Applications of Lip Bumper

目的 :探讨多曲唇挡的设计原理、制作、适应证和功能。方法 :①介绍多曲唇挡的设计原理和制作。②通过对两例使用多曲唇挡典型病例的介绍 ,总结多曲唇挡的适应证和功能。结果 :多曲唇挡可以起到缺隙保持器、Fr¨ankel矫治器和增强支抗或推磨牙向后等作用。结论 :多曲唇挡适应范围广 ,可以 2 4h戴用 ,制作简便 ,并可预成 ,患者戴用舒适、隐蔽。

Objective: This paper introduced the principle of design, methods of fabrication, indications and functions of lip bumper, and advocated the application of lip bumper in orthodontic clinic. Methods: Two typical cases treated with lip bumper were introduced. Some notices and experiences of applying lip bumpers were summed up. Results: There were following functions of lip bumper: as a space maintainer, Frnkel effect, headgear effect, post-maxillary expansion retention, derotation of molars, and combined using with headgear. Conclusion: The advantages of lip bumper are inclusions of a wide range of indication, wearing for 24 hours per day, easily fabricating and prefabricating, comfortable and hidden for patients.