目的判断3种窝洞消毒剂[葡萄糖酸洗必泰为基质的制剂（Consepsis）；洁尔灭为基质的制剂（Tubulicid red）；碘-碘化钾／硫酸铜为基质的制剂（Ora-5）]对非冲洗性牙本质粘结系统Clearfil SE Bond和Prompt L—Pop产生微渗漏的影响。材料...目的判断3种窝洞消毒剂[葡萄糖酸洗必泰为基质的制剂（Consepsis）；洁尔灭为基质的制剂（Tubulicid red）；碘-碘化钾／硫酸铜为基质的制剂（Ora-5）]对非冲洗性牙本质粘结系统Clearfil SE Bond和Prompt L—Pop产生微渗漏的影响。材料和方法在离体磨牙的颊舌侧牙颈部制备V类洞。洞型的He缘位于釉质内。而龈缘在牙骨质中。实验组窝洞被3种消毒剂中的一种处理后再用Clearfil SE Bond或Prompt L—Pop进行粘结。未经消毒的窝洞作为阴性对照组．既未经消毒又未经牙本质粘结性树脂处理的窝洞作为阳性对照组。树脂充填后将标本经温度循环，染色。然后切片以评判染色的渗透程度。染色标本的牙本质一树脂修复体界面在扫描电镜下检测。结果葡萄糖酸洗必泰为基质的制剂Consepsis和洁尔灭为基质的制剂Tubulicid red在影响Clearfil SE Bond和Prompt L—Pop系统的封闭性方面没有显著性差异。而经碘-碘化钾／硫酸铜为基质的制剂Ora-5处理后在牙本质-树脂修复体界面显现出裂隙．形成明显的微渗漏。结论当使用Clearfil SE Bond和Prompt L—Pop系统对窝洞粘结修复时Consepsis和Tubulicid red可作为窝洞消毒剂而不会对其边缘封闭性产生影响。当使用上述粘结系统时Ora-5则不是一种合适的消毒剂。展开更多
Resin-dentin bond degradation is a major cause of restoration failures. The major aim of the current study was to evaluate the impact of a remineralization medium on collagen matrices of hybrid layers of three differe...Resin-dentin bond degradation is a major cause of restoration failures. The major aim of the current study was to evaluate the impact of a remineralization medium on collagen matrices of hybrid layers of three different ad- hesive resins using nanotechnology methods. Coronal dentin surfaces were prepared from freshly extracted premo- lars and bonded to composite resin using three adhesive resins （FluoroBond II, Xeno-III-Bond, and iBond）. From each tooth, two central slabs were selected for the study. The slabs used as controls were immersed in a simulated body fluid （SBF）. The experimental slabs were immersed in a Portland cement-based remineralization medium that con- tained two biomimetic analogs （biomineralization medium （BRM））. Eight slabs per group were retrieved after 1, 2, 3, and 4 months, respectively and immersed in Rhodamine B for 24 h. Confocal laser scanning microscopy was used to evaluate the permeability of hybrid layers to Rhodamine B. Data were analyzed by analysis of variance （ANOVA） and Tukey＇s honest significant difference （HSD） tests. After four months, all BRM specimens exhibited a significantly smaller fluorescent area than SBF specimens, indicating a remineralization of the hybrid layer （P≤0.05）. A clinically applicable biomimetic remineralization delivery system could potentially slow down bond degradation.展开更多
文摘目的判断3种窝洞消毒剂[葡萄糖酸洗必泰为基质的制剂（Consepsis）；洁尔灭为基质的制剂（Tubulicid red）；碘-碘化钾／硫酸铜为基质的制剂（Ora-5）]对非冲洗性牙本质粘结系统Clearfil SE Bond和Prompt L—Pop产生微渗漏的影响。材料和方法在离体磨牙的颊舌侧牙颈部制备V类洞。洞型的He缘位于釉质内。而龈缘在牙骨质中。实验组窝洞被3种消毒剂中的一种处理后再用Clearfil SE Bond或Prompt L—Pop进行粘结。未经消毒的窝洞作为阴性对照组．既未经消毒又未经牙本质粘结性树脂处理的窝洞作为阳性对照组。树脂充填后将标本经温度循环，染色。然后切片以评判染色的渗透程度。染色标本的牙本质一树脂修复体界面在扫描电镜下检测。结果葡萄糖酸洗必泰为基质的制剂Consepsis和洁尔灭为基质的制剂Tubulicid red在影响Clearfil SE Bond和Prompt L—Pop系统的封闭性方面没有显著性差异。而经碘-碘化钾／硫酸铜为基质的制剂Ora-5处理后在牙本质-树脂修复体界面显现出裂隙．形成明显的微渗漏。结论当使用Clearfil SE Bond和Prompt L—Pop系统对窝洞粘结修复时Consepsis和Tubulicid red可作为窝洞消毒剂而不会对其边缘封闭性产生影响。当使用上述粘结系统时Ora-5则不是一种合适的消毒剂。
基金Project supported by the National Natural Science Foundation of China(No.81271955)the Zhejiang Provincial Natural Science Foundation of China(No.Y2080338)
文摘Resin-dentin bond degradation is a major cause of restoration failures. The major aim of the current study was to evaluate the impact of a remineralization medium on collagen matrices of hybrid layers of three different ad- hesive resins using nanotechnology methods. Coronal dentin surfaces were prepared from freshly extracted premo- lars and bonded to composite resin using three adhesive resins （FluoroBond II, Xeno-III-Bond, and iBond）. From each tooth, two central slabs were selected for the study. The slabs used as controls were immersed in a simulated body fluid （SBF）. The experimental slabs were immersed in a Portland cement-based remineralization medium that con- tained two biomimetic analogs （biomineralization medium （BRM））. Eight slabs per group were retrieved after 1, 2, 3, and 4 months, respectively and immersed in Rhodamine B for 24 h. Confocal laser scanning microscopy was used to evaluate the permeability of hybrid layers to Rhodamine B. Data were analyzed by analysis of variance （ANOVA） and Tukey＇s honest significant difference （HSD） tests. After four months, all BRM specimens exhibited a significantly smaller fluorescent area than SBF specimens, indicating a remineralization of the hybrid layer （P≤0.05）. A clinically applicable biomimetic remineralization delivery system could potentially slow down bond degradation.
