3种纤维桩修复前牙抗折力的研究  

Study on three kinds of fiber piles for repairing anterior teeth

作　　者：洪席超[1] 李懿 文静[1] HONG Xichao;LI Yi;WEN Jing(Departmentof Stomatology,Medical College of Shaoguan Universty,Shaoguan 512026,China)

机构地区：[1]韶关学院医学院口腔科,广东韶关512026

出　　处：《实用医学杂志》2018年第9期1485-1487,1503,共4页The Journal of Practical Medicine

基　　金：广东省医学科研基金项目(编号:A2012698);韶关市创新资金项目(编号:2060502)

摘　　要：目的对比临床用于前牙修复的3种纤维桩,即预成纤维桩、可塑纤维桩、CAD/CAM一体化纤维桩在进行前牙修复后牙体抗折力的差异。方法收集因非牙体原因拔除的上颌中切牙36颗,经根充及去冠处理后随即分4组:A组CAD/CAM一体化玻璃纤维桩,B组可塑纤维桩+树脂核,C组预成纤维桩+树脂核,然后铸造金属冠修复,D组为对照组根管治疗后金属冠修复。记录修复后试件抗折测试数据并且分析其破坏形式,结果进行单因素方差分析。结果 A组在抗折测试中其抗折力为(247.4±24.43)N,B组(203.5±24.46)N,C组(197.4±25.09)N,D组(260.4±33.43)N。A组强度优于B组及C组(P<0.05),与D组差异无统计学意义(P>0.05),B组与C组比较差异无统计学意义(P>0.05)。各组破坏方式均为牙颈部的损坏。结论一体化纤维桩核的抗折力要优于预成纤维桩和可塑纤维桩,与根管治疗后天然牙体组织抗折性能相似。Objective To investigate the differences of tooth bending force of three kinds of fiber post infront teeth repair. Methods The number of incisor teeth in the upper jaw was 36. Immediately after dealing withthe root canal filling and removing crown in the four groups：group A CAD/CAM integration of glass fiber post,group B plastic fiber pile ＋ resin cores,advance into the fiber pile group C ＋ resin cores,group D as controlmetal crown repair directly after root canal treatment. And the first three samples were selected by using castingmetal crown. After recording and repairing the test data,and analyzing its failure form,the test results wereanalyzed by the single factor analysis. Results In the anti-fold test,the anti-folding force of（247.4±24.43）N,（203.5±24.46）N,（197.4±25.09）N and（260.4±33.43）N was observed in group A to D,respectively. Afterstatistical analysis,group A was better than group B and group C（P〈0.05）,but with no significant differencebetween group A and D,and between group B and C. It was observed that the fracture mode of each group wasdamaged in the neck of the tooth. Conclusion The anti-folding force of the integrated glass fiber core is betterthan that of the preformed glass fiber pile and the plastic fiber pile,which is similar to the anti-folding perfor-mance of the natural tooth structure.

关 键 词：预成纤维桩 铸造金属桩核 抗折力 一体化纤维桩核 

分 类 号：R783.1[医药卫生—口腔医学]