应用MTA封闭根尖和修补根管侧穿的临床疗效观察  

Observation of clinical effect of apical barrier and perforation repair with mineral trioxide aggregate

作　　者：刘彦[1] 牛忠英[1] 李彦[1] 王晓艳[1] 包博[1] 张艳茹[1] 

机构地区：[1]解放军第306医院全军口腔疾病诊治中心,北京100101

出　　处：《实用口腔医学杂志》2010年第3期345-348,共4页Journal of Practical Stomatology

摘　　要：目的：观察MTA（mineral trioxide aggregate）治疗根尖敞开和根管侧穿患牙的临床疗效。方法：病例选择于解放军第306医院牙体牙髓科门诊患者共计23例,其中根尖部敞开7例、根管内吸收、根折造成根管侧穿6例、医源性根管侧穿10例。病程0.5~24个月,X线片显示23例均有根部或根尖周透射影。常规根管清理消毒、封药,于根管显微镜下采用MTA封闭根尖开放部位,形成屏障后热胶垂直加压法充填根管,6、12个月进行复查。结果：1例失访,6个月复诊根尖周透射影增大1例,根尖周透射影减小20例,1例无明显变化。12个月复诊根尖区透射影消失9例,根尖周透射影减小5例,无明显变化2例。结论：应用MTA封闭根尖和修补根管侧穿的临床短期疗效良好,在根管显微镜下实施有助于提高MTA充填的准确性和密合性。Objective：To observe the clinical effect of apical barrier and perforation repair with mineral trioxide aggregate.Methods：Selected 23 samples from out-patients of the department of conservative dentistry of oral disease treatment center of 306 Hospital of PLA.Among them,7 samples were with unshaped root apical,6 samples were with lateral perforation from root canal internal absorption or root fracture,10 samples were iatrogenic lateral perforation.The course of the disease was 0.5-24 months.The images of dental films showed that there was shadow around the root or apical area in all the samples.All the samples received regular root canal treatment.Under root canal microscope,the open sites were sealed with MTA.After the barrier formed,filled the root canal with warm gutta-percha vertical compaction technique.Patients were ordered to re-check on 6 months and 12 months respectively.Results：1 sample dropped out.On 6 months visit,1 sample showed enlarged shadow at the apical area,20 samples showed shrinked shadow,1 sample showed no significant change.On 12 months visit,the shadow vanished in 9 samples;the shadow decreased in 5 samples,and there were 2 samples showed no significant changes.Conclusion：The treatment with MTA on apical barrier and perforation shows acceptable effect in short term observation.The use of microscope helps to enhance the accuracy and leak tightness of MTA filling.

关 键 词：MTA 根尖成形 根管侧穿 

分 类 号：R781.05[医药卫生—口腔医学]