Effect of surface area and air-drying distance on shear bond strength of etch-and-rinse adhesive

El-Askary, Farid Sabry; Nassif, Mohammed S; Andrade, Andréa Mello de; Reis, Alessandra; Loguércio, Alessandro Dourado

doi:10.1590/s1806-83242012005000013

Cited by 15 publications

(11 citation statements)

References 20 publications

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“…[70] A similar trend was noticed in shear bond strengths where smaller surface areas had significantly higher values when compared with those of larger areas. [71]…”

Section: Variables Influencing Macro-bond Strength Test Resultsmentioning

confidence: 99%

Validity of bond strength tests: A critical review: Part I

et al. 2014

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Adhesive systems are selected based on their bond strengths achieved while testing in laboratories. These bond strengths can predict the longevity of a restoration to some extent. There were several discrepancies in the reported bond strengths. To critically review the reliability of macro-bond strength tests used to evaluate resin-tooth interface. Relevant literature published between January 1983 and May 2013 was collected from PubMed database, Google scholar, and hand-searched journals of Conservative Dentistry, Endodontics and Dental materials. Variables that influence the test outcome are categorized into substrate-related factors, factors related to specimen properties, preparation of specimens, and test methodology. Impact of these variables on the test outcome is critically analyzed. There is lack of a standard format for reporting the bond strength tests, which could lead to misinterpretation of the data and bonding abilities of adhesives.

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“…[70] A similar trend was noticed in shear bond strengths where smaller surface areas had significantly higher values when compared with those of larger areas. [71]…”

Section: Variables Influencing Macro-bond Strength Test Resultsmentioning

confidence: 99%

Validity of bond strength tests: A critical review: Part I

et al. 2014

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“…In addition, the bond area in the current study (3.5 mm diameter) was greater than that used by Cantekin (2 mm diameter). It is well established that the larger the bonded area will produce lower SBS values 27) , due to the increased probability of the presence of critical sized defects 28) . The higher SBS value of TheraCal LC compared with MTA and Fuji IX may be due in part to the resin content in TheraCal LC; which provides a chemical bond with the composite.…”

Section: Discussionmentioning

confidence: 99%

Shear bond strength of a novel light cured calcium silicate based-cement to resin composite using different adhesive systems

et al. 2016

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The shear bond strength (SBS) of TheraCal LC to resin composite was evaluated in comparison to Mineral trioxide aggregate (ProRoot MTA) and conventional glass ionomer cement (GIC) using two adhesive systems. A hole was prepared in 90 acrylic blocks (6 mm diameter, 2 mm deep) then filled with TheraCal LC, MTA or Fuji IX (n=30/group). Each group was bonded with either an etch and rinse or 1-step self-etch adhesive. Filtek Z250 composite was bonded to each capping material. Bond strength was tested in a universal testing machine, and data were analyzed using 2-way ANOVA and Duncan's Multiple range test (p<0.05). TheraCal LC displayed the highest SBS (p<0.001). MTA bonded with the 1-step self-etch adhesive showed the lowest SBS (p<0.001), while SBS of TheraCal LC and Fuji IX did not differ between either adhesive (p>0.05). TheraCal LC is the preferred choice in pulp capping procedures when using resin composite restorations.

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“…The presence of organic content and water impairs proper bonding. Furthermore, the presence of solvents and hydrophilic components in the adhesive layer of the SB can additionally compromise the adhesive's proper polymerization 5,11 , mainly in the presence of dentinal wetness, contributing to a reduction of the bonding performance 9 . These aspects can explain the inferior results of the SB when the margins were located in the dentin.…”

Section: Discussionmentioning

confidence: 99%

Marginal adaptation of class V composite restorations submitted to thermal and mechanical cycling

Casselli

Faria-e-Silva

Casselli³

et al. 2013

J. Appl. Oral Sci.

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Objective:This study evaluated the effect of the margin location and an adhesive system on the marginal adaptation of composite restorations.Material and Methods:Class V cavities were prepared in bovine teeth with the gingival margin on the dentin and the incisal margin on the enamel. The cavities were restored with a micro-hybrid composite resin using an etch-and-rinse [Single Bond 2 (SB)] or a self-etching adhesive [Clearfil SE Bond (CL)]. After finishing and polishing the restorations, epoxy replicas were prepared. The marginal adaptation was analyzed using scanning electronic microscopy (SEM, 500 x magnification). The higher gap width in each margin was recorded (T0). After the first evaluation, the samples were submitted to thermal cycling (2,000 cycles of 5ºC±2ºC followed by 55ºC±2ºC - T1) and mechanical cycling (100,000 cycles of 50 kN and 2 Hz - T2). Replicas of samples were rebuilt after each cycling and analyzed under SEM. The data were submitted to Mann-Whitney, Wilcoxon and Friedman testing (a=0.05).Results:The SB presented higher gaps in the dentin than the enamel, while there was no difference between the substrate for the CL. In the dentin, the CL showed better marginal sealing than the SB. The opposite occurred in the enamel. There were no significant differences between the baseline, thermal and mechanical cycling for any experimental condition.Conclusions:The outcomes of the present study showed that the adhesive system and margin location have an important effect on the marginal adaptation of composite restorations.

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Effect of surface area and air-drying distance on shear bond strength of etch-and-rinse adhesive

Cited by 15 publications

References 20 publications

Validity of bond strength tests: A critical review: Part I

Validity of bond strength tests: A critical review: Part I

Shear bond strength of a novel light cured calcium silicate based-cement to resin composite using different adhesive systems

Marginal adaptation of class V composite restorations submitted to thermal and mechanical cycling

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