用双重冠固定修复纵折的前磨牙米延玲（１）王忠义（１）艾蝇前（１）张蓉（２）（１第四军医大学秦都口腔医学院２广东省职业病防治院门诊部口腔科）前磨牙纵折在临床上虽然较磨牙少见，但也时有发生。由于前磨牙位于口腔易暴露部位，如以常规的结扎固定加金属全冠的方法... (2) (1) Qindu School of Stomatology, Fourth Military Medical University 2 Guangdong Provincial Occupational Disease Prevention and Treatment Clinic Stomatology) premolar longitudinal fold in the clinic although more rare than the molar, but also from time to time. As the premolar teeth in the oral exposure to the site, such as conventional ligation fixed plus metal crown method ...