›› 2015, Vol. 35 ›› Issue (9): 730-733.

• 基础研究 • 上一篇    下一篇

固化光源强度对双固化树脂粘接纤维桩强度的影响

陈健1,吴凤鸣2,张晓燕2,马骞3,乔萍丽1   

  1. 1. 苏州卫生职业技术学院
    2. 江苏省口腔医院
    3. 南京医科大学附属口腔医院
  • 收稿日期:2015-04-13 修回日期:2015-04-27 出版日期:2015-09-28 发布日期:2015-09-14
  • 通讯作者: 吴凤鸣 E-mail:wudent@sina.com
  • 基金资助:
    江苏高校优势学科建设工程资助项目

Effect of different intensity of light source on fiber post cementation

  • Received:2015-04-13 Revised:2015-04-27 Online:2015-09-28 Published:2015-09-14
  • Supported by:
    2014-37

摘要: 目的 研究不同光源强度对双固化树脂粘结纤维桩固位力的影响。 方法 30颗离体前磨牙,截冠,预备根管,根管充填,BISCO Duo-link双固化粘结剂将BISCO DT light post纤维桩粘固。按纤维桩粘结时使用的固化光源强度不同分成3组:空白组不使用固化光源;低强度组使用600 MW/cm2 LED强度固化光源;高强度组使用1 200 MW/cm2 LED强度固化光源。沿垂直纤维桩长轴方向将牙根切成1 mm薄片,行薄片推出实验,记录推出力量,计算粘结强度。 结果 粘结强度:空白组<低强度组<高强度组。空白组、高强度组各自不同深度粘结强度无差别;低强度组粘结强度:根尖<根中<根颈。 结论 使用双固化树脂粘结剂粘结纤维桩时,固化光源强度增加,有利于增强不同深度粘结剂与桩的粘结强度,增加树脂粘结纤维桩的固位力。

关键词: 纤维桩, 树脂粘结剂, 固化光源强度, 粘结力

Abstract: Objective To verify the influence of different light intensities on the bond strength of fiber posts cemented with dual-cured resin cement.Methods 30 crownless human premolars were prepared.Fiber posts were inserted using dual-cured cement and were randomly divided into 3 groups(n=10):control group:no use of curing light source; low intensity group:the use of 600 MW/cm2 LED curing light intensity; high strength group:the use of   1 200 MW/cm2 LED curing light intensity.After one week,each root was sectioned transversally into three slices (cervical,middle and apical) and the bond strength of each section was determined using a push-out bond strength test.Results The bond strength:blank groupmiddle>apical.Conclusions When using a dual-cured cement,the bond strength of fiber post was influenced by the strength of curing light intensity.With the increase of curing light source intensity,the bond strength of fiber post also increased.

Key words: fiber post, resin cement, curing light source intensity, bond strength

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