收集本科48例远中根严重龋坏、吸收的下颌第二磨牙,分根拔除远中根,保留近中根,联合第一磨牙作为桥基牙单端固定桥修复第二磨牙。修复5年后复查,总有效率92.4%,固定桥能正常行使咀嚼功能。远中根严重龋坏吸收的第二磨牙保留近中根,单端固定桥修复第二磨牙疗效好。 Forty-eight cases of secondary maxillary root carious severely carious and absorbed mandibular second molars were collected, the distal roots were removed by rooting, the proximal roots were preserved, and the first molar was used as the single abutment bridge abutment to repair the second molars. Repair 5 years after the review, the total efficiency of 92.4%, fixed bridge can exercise the normal masticatory function. The second molars, which are absorbed by the far root, have a good effect on the second molars.