CAJ | 학술논문

目的探讨热牙胶垂直加压充填技术在根尖封闭性研究中的临床价值.方法采集所在三级甲等医院口腔颌面外科,因牙周疾患拔出的新鲜离体单根牙80颗,随机分为A、B两组.A组(40颗)采用Pro-Taper镍钛机扩预备;B组(40颗)采用不锈钢K锉手动预备.将根备后的A组B组样本牙,各自随机分出A1、A2组和B1、B2组,对以上A1、B1组采用热牙胶垂直加压充填技术;对A2、B2组采用传统冷牙胶侧方加压充填技术,在实验中比较两种根充技术对根尖所产生的微渗漏量,进一步分析热牙胶垂直加压充填技术对根尖封闭性的影响.结果 80例样本牙中,采取不同根管预备方式对根尖区产生的微渗漏量并无明显差异(根备总效应P>0.05);而选择两种根管充填技术,其根尖区产生的微渗漏量存在明显差异,具统计学意义(P<0.05).结论热牙胶垂直加压充填技术的根尖封闭性能优于传统冷牙胶侧方加压充填技术,明显提高了根管治疗的成功率,值得推广.
목적 탐토열아효수직가압충전기술재근첨봉폐성연구중적림상개치.방법 채집소재삼급갑등의원구강합면외과,인아주질환발출적신선리체단근아80과,수궤분위A、B량조.A조(40과)채용Pro-Taper얼태궤확예비;B조(40과)채용불수강K촤수동예비.장근비후적A조B조양본아,각자수궤분출A1、A2조화B1、B2조,대이상A1、B1조채용열아효수직가압충전기술;대A2、B2조채용전통랭아효측방가압충전기술,재실험중비교량충근충기술대근첨소산생적미삼루량,진일보분석열아효수직가압충전기술대근첨봉폐성적영향.결과 80례양본아중,채취불동근관예비방식대근첨구산생적미삼루량병무명현차이(근비총효응P>0.05);이선택량충근관충전기술,기근첨구산생적미삼루량존재명현차이,구통계학의의(P<0.05).결론 열아효수직가압충전기술적근첨봉폐성능우우전통랭아효측방가압충전기술,명현제고료근관치료적성공솔,치득추엄.
Objective Study on the clinical value of hot gutta-percha vertical condensation in sealing performance of apical zone.Methods All the samples in this research were collected from oral and maxillofacial surgery clinic of the fourth clinical hospital of Harbin Medical University,the 80 teeth pulled out for orthodontia or periodontal disease.80 human teeth were randomly divided into group A and B.Group A(40 teeth) used Nickel-titanium rotary device to prepare root canal,however,group B used Mani K file to prepare root canal manually.And then Group A was divided to A1 and A2,Group B was divided into B1 and B2.A1 and B1 filled by hot gutta-percha vertical condensation,A2 and B2 filled by cold lateral condensation.The micro leakage of apical zone of different root canal condensation technique were compared,achieving the effect of hot gutta-percha vertical condensation on sealing performance of apical zone.Results For all the 80 samples,there was no obviousdifferenceof micro leakage of two different root canal preparation methods(P>0.05).But the difference of micro leakage between the two root canal condensation techniquewas statistically significant (P <0.05).Conclusions Hot gutta-percha vertical condensation technique is better than cold lateral condensation technique in sealing performance of apical zone,it can improve the cure rate of root canal treatment,worth to be popularized.