Kogod M, Kogod H S
Am J Orthod Dentofacial Orthop. 1991 Mar;99(3):276-80. doi: 10.1016/0889-5406(91)70009-L.
This article describes an orthodontic mechanical variation to unlock and upright mandibular impacted second permanent molars. This is accomplished with a small sectional arch wire that is ligated in a piggyback fashion to the existing arch wire and first molar band attachment. The piggyback buccal sectional arch wire (PBBSAW) technique provides a simple, expedient, and effective mechanical approach to the impacted second molar problem.
本文描述了一种正畸机械变异方法，用于使下颌埋伏阻生的第二恒磨牙萌出并直立。这是通过一根小的片段弓丝来实现的，该弓丝以搭扣的方式结扎到现有的弓丝和第一磨牙带环附件上。搭扣式颊侧片段弓丝（PBBSAW）技术为解决埋伏阻生第二磨牙问题提供了一种简单、便捷且有效的机械方法。
