后牙锁牙合矫治之临床改良新型矫治器的设计与应用

后牙锁牙合是口腔临床常见的错牙合类型,即上下颌后牙颊舌向关系的异常,严重影响口颌功能、美观、健康。考虑到医疗资源分配、医师自身技术水平及患者自身意愿,很难说某一种矫治方法完全适用于某一病例。医师应充分了解该后牙锁牙合发生的原因后,根据具体情况选用、改良或设计快速有效安全舒适的方法。本文对后牙锁牙合的病因、危害、临床传统矫治方法的不足、改良设计后牙锁牙合矫治器所要遵循的要点,治疗中可能出现问题的防治做一综述,以及介绍了3种改良新型矫治器的应用,为临床工作选用实用性方法治疗后牙锁牙合提供参考。

Design and Application of Modified Appliance for Posterior Crossbite

The posterior crossbite is a common malocclusion characterized by abnormal buccal/lingual relationship between the maxillary and mandibular posterior teeth,which seriously affected the oclussal function, aesthetics, and oral health. There are multiple clinical manifestations, considering the distribution of medical resources, the orthodontist's technical level, and patient's wishes. It is hard to say that a correction method is perfectly suitable for a certain case. After fully understanding the malocclusion causes,orthodontists should select, improve, or design a more fast, effective, safe, and comfortable method according to specific circumstances. This paper provides an overview of posterior crossbite about etiology, clinical harm, the shortcomings of traditional clinical treatment methods, principles of improvement or design, and the prevention and treatment of possible problems in the process. And the application of three improved new appliances is introduced, which will provide reference for clinical practical treatment of posterior crossbite.