CAJ | 학술논문

目的观察经根管治疗且单端游离缺失的前磨牙只做全冠修复与全冠修复后再做可摘局部义齿修复两种修复方法对其折裂的影响。方法105例患者，共138颗患牙，其中上颌前磨牙63颗，下颌前磨牙75颗；69颗牙只做全冠修复，另69颗牙做全冠修复加可摘局部义齿修复。修复后1年，2年，3年进行复查，了解患牙折裂情况，并进行统计学分析。结果只做全冠修复的69颗患牙1年复查11颗患牙折裂，2年15颗患牙折裂，3年23颗患牙折裂。而全冠加可摘局部义齿修复的69颗患牙折裂1年复查3颗患牙折裂，2年5颗患牙折裂，3年5颗患牙折裂。两种方法差异有统计学意义（X2=9.423 P<0.01）结论全冠修复加可摘局部义齿修复的联合运用可延长经根管治疗且单端游离的前磨牙寿命。
목적관찰경근관치료차단단유리결실적전마아지주전관수복여전관수복후재주가적국부의치수복량충수복방법대기절렬적영향。방법105례환자，공138과환아，기중상합전마아63과，하합전마아75과；69과아지주전관수복，령69과아주전관수복가가적국부의치수복。수복후1년，2년，3년진행복사，료해환아절렬정황，병진행통계학분석。결과지주전관수복적69과환아1년복사11과환아절렬，2년15과환아절렬，3년23과환아절렬。이전관가가적국부의치수복적69과환아절렬1년복사3과환아절렬，2년5과환아절렬，3년5과환아절렬。량충방법차이유통계학의의（X2=9.423 P<0.01）결론전관수복가가적국부의치수복적연합운용가연장경근관치료차단단유리적전마아수명。
Objective: To observe the influence of two different repair methods on root canal therapy and edentulous premolar fracture. One method is full crown restoration, the other one is the combination of full crown and removable partial denture restoration. Method: 105 patients with 138 teeth, 63 maxillary premolars and 75 mandibular premolars. 69 teeth restore with full crown. The other 69 restore with the combination of full crown and removable partial denture restoration. Do the follow-up visiting after 1 year, 2 years, 3 years. Record the fracture and do statistical analysis. Results: There are 11 premolar fractures after 1 year restoration with full crown, 15 after 2 years and 23 after 3 years. The other team is 3 premolar fractures after 1 year , 5 after 2 years , 5 after 3 years. The two methods is Significant differences.(X2=9.423 P<0.01). Conclusion: The combination of full crown and removable partial denture restoration extend the service life of root canal therapy and edentulous premolar.