玻璃纤维桩用于前牙残根残冠修复的临床研究(1)
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[摘要] 目的 探讨玻璃纤维桩用于前牙残根残冠修复的临床效果。方法 选择前牙残根残冠患者104例,共192颗患牙,经过完善的根管处理后,均用桩核冠修复。将患者随机分为观察组和对照组。观察组54例,共96颗患牙,采用玻璃纤维桩;对照组50例,共96颗患牙,采用铸造金属桩,治疗后随访2年,观察治疗成功率。结果 所有患者均完成治疗,随访2年时间,观察组成功率为96.9%,对照组成功率为87.5%,差异有统计学意义(P<0.05);两组失败病例中以下颌牙失败多见。结论 玻璃纤维桩修复前牙残根残冠近期临床修复效果较好,但长期临床疗效还需要进一步研究。
[关键词] 玻璃纤维桩;前牙;残冠;残根
[中图分类号] R783.3 [文献标识码] B [文章编号] 1673-9701(2011)36-125-02
The Clinical Research of Glass Fiber Post to Repair Front Teeth Residual Roots and Crowns
CHU Weidong GUO Xiaoqiang
Department of Stomatology, Haining City People's Hospital in Zhejiang Province,Haining 314400,China
[Abstract] Objective To discuss the clinical effect of glass fiber post to repair front teeth residual roots and crowns. Methods To choose 104 cases front teeth with the residual roots and crowns,192 teeth,and after the perfect root canal treatment,all used post-core crown restoration. The patients were randomly divided into research group and control group:the research group of 54 patients,96 teeth,used glass fiber posts,and the control group of 50 patients,96 teeth,used cast metal posts. Follow-up two years after treatment,success rates of treatment were observed. Results All patients completed treatment. Follow-up two years,the success rate of the research group was 96.9% and that of the control group was 87.5%,and the difference was statistically significant(P<0.05). The main failure of two groups was in the mandibular teeth. Conclusion The clinical repair effect of glass fiber post repairing front teeth residual roots and crowns is good in recently,but the long-term clinical efficacy needs to be studied.
[Key words] Glass fiber post;Front teeth;Residual crowns;Residual roots
随着除髓术及根管治疗技术的逐渐完善,运用热牙胶垂直加压技术充填根管使越来越多的残冠残根得到保留。铸造金属桩因其弹性模量远高于牙体组织,当修复体受到较大负荷时,容易导致牙根局部产生应力集中而发生根折[1]。而玻璃纤维桩作为一种新型桩核材料,操作方便,具有良好的力学特性及美学性能,用玻璃纤维桩、树脂作桩核行冠修复,以彻底恢复牙冠的外形,正逐渐应用于临床。我院口腔科于2009年8月~2011年6月将玻璃纤维桩应用于前牙残根残冠的修复治疗,取得满意效果,现报道如下。
1 资料与方法
1.1 纳入与排除标准
纳入标准:①成熟恒牙;②因牙外伤或大面积龋坏所致残根、残冠;③均已行完善的根管治疗,有保留价值;④所有前牙咬合关系基本正常,根管形态无异常;⑤残根长度≤10mm,X线片检查牙根无折裂,根尖周组织正常。
排除标准:①有严重的全身性或系统性疾病;②有严重的牙周病;③年轻恒牙;④精神病患者及沟通障碍者。
1.2 一般资料
收集2009年8月~2011年6月在本院口腔科就诊的104例前牙区残根残冠修复病例,男49例,女55例,共192颗患牙,上切牙58颗,中切牙64颗,上侧切牙51颗,上尖牙19颗,外伤86颗,龋齿114颗。患者年龄20~46岁,平均(38.6±12.3)岁。将患者随机分为观察组和对照组 ......
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