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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effect of self-etching adhesives on dentin permeability in a fluid flow model.
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Effect of self-etching adhesives on dentin permeability in a fluid flow model.

机译：在流体流动模型中自蚀刻粘合剂对牙本质渗透性的影响。

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STATEMENT OF PROBLEM: Numerous self-etching bonding systems exist, with composition differing from one product to another. It is important for the clinician to know if they are all equally effective, and whether they provide an effective seal between dentin and restorative materials. PURPOSE: This study was designed to measure the hydraulic conductance of physiologic saline across dentin after application of various self-etching bonding systems or of a 1-bottle adhesive system preceded by a phosphoric acid etch. MATERIAL AND METHODS: One hundred extracted noncarious human third molars from patients 18-25 years old were used for this study. Dentin disks were cut from crown segments parallel to the occlusal surface at the top of the pulp cavity. The 100 disks, each 1 mm thick, were divided into 10 groups (n=10 per group), each of which was treated with 1 of 9 self-etching systems-AdheSE, Adper Prompt L-Pop, Clearfil SE Bond, Etch & Prime 3.0, Prime & Bond NRC Nt, One-Up Bond F, optiBond solo Plus Self Etch, Prompt L-Pop, or Xeno III-or a control bonding system (Prime & Bond NT) preceded by a phosphoric acid etch. Hydraulic conductance, the volume of fluid transported across a known area of surface (0.28 cm2) per unit time under a unit pressure gradient (200 cm H2O), was analyzed for the adhesive systems using a fluid flow apparatus (Flodec). First, both sides of each specimen were etched with 36% phosphoric acid for 30 seconds, and the hydraulic conductance was measured every 30 seconds for 15 minutes. The initial set of measurements served as the reference value for each specimen. The measurements were repeated when a smear layer had been formed and, finally, after 1 of the 10 bonding systems had been applied. The data were analyzed using a 1-way ANOVA and Duncan's multiple range test (alpha=.05). RESULTS: The control 1-bottle adhesive used with a phosphoric acid pre-etch did not provide the largest reduction in penetration (42.3%). The greatest mean reduction (68.9%, P<.05) was observed with the self-etching product Xeno III. The mean reduction for the other materials tested were: One-Up Bond F, 60.5%; AdheSE, 58.2%; Etch & Prime 3.0, 56.8%; Adper Prompt L-Pop, 51%; optiBond solo Plus Self Etch, 45%; Clearfil SE Bond, 35.5%, Prime & Bond NRC Nt, 16.4%; and Prompt L-Pop, 16.3%. CONCLUSION: Within the limitations of this study, the self-etching systems tested produced different reductions in dentin permeability. For some, the reduction was much greater than the decrease in dentin permeability provided by the bonding system with a phosphoric acid pre-etch; for others, the reduction was small.
机译：问题陈述：存在许多自蚀刻键合系统，其组成因一种产品而异。对于临床医生而言，重要的是要知道它们是否都同样有效，以及它们是否在牙本质和修复材料之间提供有效的密封。目的：本研究旨在测量在应用各种自蚀刻粘结系统或先进行磷酸蚀刻后的1-bottle粘结系统后，整个牙本质的生理盐水的水力传导率。材料与方法：本研究使用了18-25岁患者的一百颗非龋齿人类第三磨牙。从与牙髓腔顶部的牙合面平行的冠状节切下牙本质片。将100个磁盘（每个磁盘厚1毫米）分成10组（每组n = 10），每个磁盘均用9种自蚀刻系统中的1个进行处理-AdheSE，Adper Prompt L-Pop，Clearfil SE Bond，Etch＆ Prime 3.0，Prime＆Bond NRC Nt，单键Bond F，optiBond solo Plus自蚀刻，Prompt L-Pop或Xeno III-或对照键合系统（Prime＆Bond NT），然后进行磷酸蚀刻。使用流体流动装置（Flodec）分析了粘合剂体系的水力传导，即在单位压力梯度（200 cm H2O）下每单位时间在已知表面面积（0.28 cm2）上传输的流体量。首先，将每个样品的两面都用36％的磷酸蚀刻30秒，然后每30秒测量一次水力传导率，持续15分钟。最初的一组测量值用作每个样本的参考值。当形成涂片层时，以及最后，在施加10个粘结体系中的1个之后，重复测量。使用1向ANOVA和Duncan多范围检验（alpha = .05）分析数据。结果：与磷酸预蚀刻一起使用的对照1瓶粘合剂没有提供最大的渗透率降低（42.3％）。使用自蚀刻产品Xeno III观察到最大的平均减少量（68.9％，P <.05）。测试的其他材料的平均减少量为：单键结合F，60.5％; AdheSE，58.2％; Etch＆Prime 3.0，56.8％; Adper Prompt L-Pop，51％; optiBond solo Plus自蚀刻，45％; Clearfil SE债券，35.5％，Prime＆Bond NRC Nt，16.4％;和提示L-Pop占16.3％。结论：在本研究的范围内，测试的自蚀刻系统导致牙本质渗透性的不同降低。对于某些人来说，这种降低远大于采用磷酸预蚀刻的粘结系统所提供的牙本质渗透性的降低;对于其他人，减少的幅度很小。

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