二氧化锆根管桩用于前牙大面积缺损修复的临床研究  

Clinical research of the application of zirconia ceramic post in the restoration of anterior teeth with large defects

作　　者：庞希瑶 周洲[1] 许涛 景双林[1] 吴锦涛[1] 金琳[1] 于金华[1] 

机构地区：[1]南京医科大学口腔医学院牙体牙髓科,江苏南京210029 [2]南京市中心医院口腔科,江苏南京210018

出　　处：《口腔医学》2017年第5期418-421,共4页Stomatology

基　　金：国家自然科学基金(81371144);浙江舟山5313行动计划科技创新创业团队A类项目

摘　　要：目的探讨二氧化锆根管预成桩在治疗前牙大面积缺损修复中的临床疗效。方法随机选取200例大面积缺损的前牙,经完善的根管治疗后分为两组,各100例。试验组采用二氧化锆根管桩加复合树脂联合修复,对照组采用玻璃纤维桩加复合树脂联合修复。定期随访,观察临床疗效。结果随访2年,试验组成功94例,失败6例,成功率94%;对照组成功72例,失败28例,成功率72%。两组成功率有显著差异(P<0.01)。二氧化锆根管桩组桩折断、修复体松脱、修复体边缘缺陷的发生率均明显低于纤维桩组(P<0.05)。修复体部分脱落发生率组间无统计学差异(P>0.05)。观察期内两组均未发生根折、基牙松动(P>0.05)。结论在前牙大面积缺损的修复治疗中,二氧化锆根管桩较纤维桩更有优势,可提高治疗成功率,且并发症少,值得临床进一步推广应用。Objective To evaluate the clinical effects of zirconia ceramic post on the restoration of large defects of anterior teeth. Methods A total of 200 anterior teeth with large-area defects were randomly selected after sound root canal treatment and divided into 2 groups （each contains 100 cases）. Teeth in the experimental group were restored with zireonia ceramic post in combination with com- posite resin, while those in the control group received the restoration of glass fiber post and composite resin. All the cases were regularly followed up to evaluate the clinical effects. Results After two years of follow-up, 94 cases in experimental group were successful, while 6 cases failed. Meanwhile, 72 cases in the control group were successful and 28 cases failed. Significant difference was detected between the experimental group （94%） and control group （72%, P〈0.01 ）. The failure rate of zirconia ceramic post was significantly lower than the glass fiber post according to the occurrence rate of the post fracture, restoration fall-off and gingival edge defect （P〈 0.05 ）. No significant difference was detected in terms of the part loss of resin（ P〉0.05 ）. Neither root fracture nor luxated abutment was observed in the two groups （P〉0.05）. Conclusion During the treatment of anterior teeth with large defects, the zirconia ceramic post is superior to glass fiber post. The former has a higher success rate and fewer complications which is worth of further clinical applica- tion.

关 键 词：二氧化锆根管桩 玻璃纤维桩 前牙 大面积缺损 

分 类 号：R781.05[医药卫生—口腔医学]