The influence of water storage and C-factor on the dentin–resin composite microtensile bond strength and debond pathway utilizing a filled and unfilled adhesive resin

Armstrong, Steven R.; Keller, John C.; Boyer, Daniel

doi:10.1016/s0109-5641(00)00081-6

Cited by 161 publications

(146 citation statements)

References 35 publications

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“…7 When restoring cavities with high C-factor, the resultant stresses put resintooth interfaces under severe tension as there is less chance for relaxation of shrinkage stress. 8 It has been reported by several investigators [8][9][10][11][12][13] that the increase in C-factor is associated with progressive weakening of the bond strength. Therefore, the strength of the adhesive interaction with tooth structure should be able to counteract the generated polymerization stresses.…”

Section: Introductionmentioning

confidence: 98%

“…The available data regarding bond strength in cavities with different Cfactors have either compared the bond strength in box-like cavities (C5) to a flat bonding surface (C1) without showing the effect of other cavity configurations [9][10][11]23 or were evaluated against an artificial substrate for bonding. 24 The main results from these studies indicate a negative effect of increasing the Cfactor on dentin bond strength.…”

Section: Introductionmentioning

confidence: 99%

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Effect of C-factor on Microtensile Bond Strengths of Low-Shrinkage Composites

El-Sahn

El-Kassas

El-Damanhoury

et al. 2011

Operative Dentistry

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SUMMARY This study evaluated the microtensile bond strength (μ-TBS) of low-shrinkage composites with their corresponding adhesive systems, Filtek Silorane/Silorane adhesive (SIL, 3M ESPE AG, Seefeld, Germany) and Aelite LS/One-Step Plus (AL, BISCO Inc, Schaumburg, IL, USA) in cavities with different C-factors. Filtek Z250/Adper Single Bond Plus (Z, 3M ESPE, St Paul, MN, USA) was used as a control. Method Standardized Class I cavities were prepared in extracted human molars after removing occlusal enamel. Cavities were assigned into six different C-factors by applying nail polish to four walls, three walls, two walls adjacent to each other, two walls opposite to each other, one wall, or no walls. Resin composites with their corresponding adhesive systems were applied according to manufacturer instructions. Specimens were sectioned to obtain four rectangular beams from the center of the restorations and μ-TBS was measured. Data were analyzed by Weibull survival analysis. Shrinkage stresses of the resin composites were determined after 30 minutes from the start of light-curing using a tensometer testing machine. Flexure elastic modulus was determined using standard procedures, in accordance with ISO 4049. Data for shrinkage stress and elastic modulus were analyzed by one-way analysis of variance followed by a Tukey multiple-comparisons test (p<0.05). Results μ-TBS of both SIL and AL were not affected by different C-factors; however, the bond strength of Z decreased significantly when the C-factor increased. Shrinkage stress results were 0.94±0.1, 1.79±0.18, and 2.14±0.23 MPa for SIL, AL, and Z, respectively. The flexural modulus of both the SIL and the AL was significantly lower than that of Z. Conclusions Increasing C-factor did not negatively affect the bond strength of low-shrinkage composites.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Effect of C-factor on Microtensile Bond Strengths of Low-Shrinkage Composites

El-Sahn

El-Kassas

El-Damanhoury

et al. 2011

Operative Dentistry

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“…Recently, bond strength has improved to values greater than the suggested shrinkage stress of 20 ㎫ resulting from the polymerizing resin composite 2) . However, the detrimental effect of the inherent shrinkage of polymerizing resin composite on dentin bond strength has still been investigated with respect to the C-factor by comparing the bond strengths of resin composites filled in the cavities with different C-factors, bonding agents, and various filling techniques [3][4][5] . It is generally accepted that the direction of shrinkage in a light-curing resin composite restoration depends on the cavity shape and bond quality 6,7) .…”

Section: ⅰ Introductionmentioning

confidence: 99%

Effect of cavity shape, bond quality and volume on dentin bond strength

Kim

Lee

Lim

et al. 2005

J Korean Acad Conserv Dent

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The aim of this study was to evaluate the effect of cavity shape, bond quality of bonding agent and volume of resin composite on shrinkage stress developed at the cavity floor. This was done by measuring the shear bond strength with respect to iris materials (cavity shape; adhesive-coated dentin as a high C-factor and Teflon-coated metal as a low C-factor), bonding agents (bond quality; Scotchbond TM Multi-purpose and Xeno � III) and iris hole diameters (volume; 1 ㎜ or 3 ㎜ in diameter × 1.5 ㎜ in thickness). Ninety-six molars were randomly divided into 8 groups (2 × 2 × 2 experimental setup). In order to simulate a Class I cavity, shear bond strength was measured on the flat occlusal dentin surface with irises. The iris hole was filled with Z250 restorative resin composite in a bulk-filling manner. The data was analyzed using three-way ANOVA and the Tukey test. Fracture mode analysis was also done. When the cavity had high C-factor, good bond quality and large volume, the bond strength decreased significantly. The volume of resin composite restricted within the well-bonded cavity walls is also be suggested to be included in the concept of C-factor, as well as the cavity shape and bond quality. Since the bond quality and volume can exaggerate the effect of cavity shape on the shrinkage stress developed at the resin-dentin bond, resin composites must be filled in a method, which minimizes the volume that can increase the C-factor. [J Kor Acad Cons Dent 30(6):450-460, 2005]

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“…Exposure to water is known to degrade dentin bonding (Armstrong et al, 2001). Inadequate infiltration of the adhesive resin cements into wet, hydroxyapatite-depleted collagen may result in incomplete hybridization (Hashimoto et al, 2000).…”

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confidence: 99%

Effects of EDTA irrigation and water storage on the bonding durability of different adhesive resin cements to intra-radicular dentin

Mao

Zhao

Wang

et al. 2014

J. Zhejiang Univ. Sci. B

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One hundred and twenty single-root teeth were selected to evaluate the bonding durability of three different adhesive resin cements to intra-radicular dentin and the effect of ethylenediaminetetraacetic acid (EDTA) irrigation on bonding durability, over six months of water storage. We found that water storage, type of cement, post space pretreatment, and root region were significant factors affecting the push-out bond strength. Water storage reduced the bond strength of RelyX Unicem (RU), especially in the apical region (P<0.05). Super Bond C&B (SB) was stronger than the other two cements, sometimes significantly so. The apical region had the lowest bond strength in all circumstances, although the difference was not always statistically significant. Irrigation with EDTA improved the bond strengths of Panavia F (PF) and RU significantly in each root region (P<0.05). These results showed that water storage decreased the bonding effectiveness of the adhesive resin cements. Irrigation with EDTA after post space preparation was a valuable procedure, especially when used in conjunction with self-etching adhesive or self-adhesive resin cements.As most bonding failures occur at the dentincement interface rather than at the post-cement interface (Faria e Silva et al., 2007;Radovic et al

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The influence of water storage and C-factor on the dentin–resin composite microtensile bond strength and debond pathway utilizing a filled and unfilled adhesive resin

Cited by 161 publications

References 35 publications

Effect of C-factor on Microtensile Bond Strengths of Low-Shrinkage Composites

Effect of C-factor on Microtensile Bond Strengths of Low-Shrinkage Composites

Effect of cavity shape, bond quality and volume on dentin bond strength

Effects of EDTA irrigation and water storage on the bonding durability of different adhesive resin cements to intra-radicular dentin

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