• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of Prosthetic Dentistry >Dentin permeability: self-etching and one-bottle dentin bonding systems.
【24h】

Dentin permeability: self-etching and one-bottle dentin bonding systems.

机译：牙本质渗透性：自蚀刻和一瓶牙本质粘合系统。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

STATEMENT OF PROBLEM: There are many bonding systems available, with or without a prior acid etch. The mechanisms differ from system to system. Therefore it is important that the clinician know which are the most effective and which provide the best seal. PURPOSE: This study measured the infiltration of physiological saline solution across dentin after application of self-etching or 1-bottle dentin bonding systems. MATERIALS AND METHODS: Thirty-six extracted noncarious human third molars from patients 18 to 25 years old were used for this study. Dentin disks were cut from crown segments parallel to the occlusal surface at the incisal portion of the pulp cavity. The 36 disks, each 1 mm thick, were divided into 6 groups (n=6 per group), each of which received one of the following dentin bonding systems: Optibond Solo Plus and Excite, which have ethanol as the solvent; Prime & Bond NT, which has acetone as the solvent; Single Bond, which has a mixed solvent; and Clearfil SE Bond or Prompt L-Pop, both self-etching systems The hydraulic conductance, the volume of fluid transported across a known area of surface (0.28 cm(2)) per unit time under a unit pressure gradient (200 cm H(2)O), was analyzed for the self-etching and 1-bottle dentin bonding systems with the Flodec apparatus. Both sides of each specimen were etched with 36% phosphoric acid for 30 seconds. Measurements were made every 30 seconds for 15 minutes. The initial measurement served as the reference value for each specimen. The measurements were repeated when a smear layer had been formed and, finally, after one of the 6 bonding systems had been applied. The data were analyzed by use of analysis of variance and a posteriori tests (Fischer's PLSD, Duncan's new multiple range) with alpha=.05. RESULTS: The greatest mean reduction (40%, P<.05) in penetration was observed with the 4 products with conventional etching: Optibond Solo Plus, Single Bond, Excite, and Prime & Bond NT. The self-etching products were associated with reductions of 36% (Clearfil SE Bond) and 16% (Prompt L Pop). Standard deviations were high, 50% of the mean value, except for the Single Bond group (-42 +/- 13) and Prime & Bond NT (-41 +/- 14). CONCLUSION: Within the limitations of this study, the 4 bonding systems tested with a phosphoric acid before etching provided a greater decrease in dentin permeability than the 2 self-etching systems. The difference in permeability decrease was significant for Prompt L-Pop but not for Clearfil SE Bond.
机译：问题陈述：有很多键合系统，有或没有事先酸蚀。机制因系统而异。因此，重要的是临床医生必须知道哪些是最有效的，哪些密封性最好。目的：本研究测量了应用自蚀刻或1瓶牙本质粘合系统后生理盐溶液在牙本质中的渗透情况。材料与方法：本研究使用了18至25岁患者的36例非龋齿人类第三磨牙。从与牙髓腔切面平行的咬合面的冠状节段切下牙本质盘。将36个圆盘（每个厚1毫米）分成6组（每组n = 6），每个圆盘都接受以下一种牙本质粘结系统：Optibond Solo Plus和Excite，以乙醇为溶剂; Prime＆Bond NT，以丙酮为溶剂;具有混合溶剂的单键;和Clearfil SE Bond或Prompt L-Pop两种自蚀刻系统液压传导率，是在单位压力梯度（200 cm H（ 2）O），用Flodec设备分析了自蚀刻和1瓶牙本质粘合系统。每个样品的两面都用36％的磷酸蚀刻30秒。每30秒进行一次测量，持续15分钟。初始测量值用作每个样本的参考值。当形成涂片层时，以及最后，在应用了六种粘合系统之一之后，重复测量。通过使用方差分析和后验检验（Fischer的PLSD，Duncan的新倍数范围）对数据进行分析，其中alpha = .05。结果：使用常规蚀刻的4种产品（Optibond Solo Plus，Single Bond，Excite和Prime＆Bond NT）观察到了最大的平均渗透降低（40％，P <.05）。自蚀刻产品减少了36％（Clearfil SE Bond）和16％（Prompt L Pop）。除了单键组（-42 +/- 13）和Prime＆Bond NT（-41 +/- 14）外，标准偏差均很高，为平均值的50％。结论：在本研究的范围内，蚀刻前使用磷酸测试的4种粘合系统比2种自蚀刻系统对牙本质渗透性的降低更大。对于Prompt L-Pop，渗透率下降的差异是显着的，但对于Clearfil SE Bond，则没有。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号