Bond strength and computational analysis for silane coupling treatments on the adhesion of resin block for CAD/CAM crowns

Tsukagoshi, Kou; Hirota, Masatsugu; Nomoto, Rie; Hayakawa, Tohru

doi:10.4012/dmj.2019-139

Cited by 11 publications

(11 citation statements)

References 25 publications

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“…The newly developed cement contained a silane coupling monomer that has a longer carbon chain than γ-MPTS according to the manufacturer (https://www.trademarkelite.com/europe/trademark/trademark-detail/0179 96211/Chemical-Affinity-Long-Carbon-chain-Silane-Coupling-Agent-LCS), (11 November 2021), which is more hydrophobic. This monomer did not show hydrolysis when incorporated into the resin cement paste, which could explain why no difference was found in µTBS between the two types of self-adhesive resin cement in this study of [27].…”

Section: Discussionmentioning

confidence: 65%

Effects of Immediate and Delayed Cementations for CAD/CAM Resin Block after Alumina Air Abrasion on Adhesion to Newly Developed Resin Cement

et al. 2021

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The purpose of this study was to evaluate the effect of one week of Computer-aided design/Computer-aided manufacturing (CAD/CAM) crown storage on the μTBS between resin cement and CAD/CAM resin composite blocks. The micro-tensile bond strength (μTBS) test groups were divided into 4 conditions. There are two types of CAD/CAM resin composite blocks, namely A block and P block (KATANA Avencia Block and KATANA Avencia P Block, Kuraray Noritake Dental, Tokyo, Japan) and two types of resin cements. Additionally, there are two curing methods (light cure and chemical cure) prior to the μTBS test—Immediate: cementation was performed immediately; Delay: cementation was conducted after one week of storage in air under laboratory conditions. The effect of Immediate and Delayed cementations were evaluated by a μTBS test, surface roughness measurements, light intensity measurements, water sorption measurements and Scanning electron microscope/Energy dispersive X-ray spectrometry (SEM/EDS) analysis. From the results of the μTBS test, we found that Delayed cementation showed significantly lower bond strength than that of Immediate cementation for both resin cements and both curing methods using A block. There was no significant difference between the two types of resin cements or two curing methods. Furthermore, water sorption of A block was significantly higher than that of P block. Within the limitations of this study, alumina air abrasion of CAD/CAM resin composite restorations should be performed immediately before bonding at the chairside to minimize the effect of humidity on bonding.

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Section: Discussionmentioning

confidence: 65%

Effects of Immediate and Delayed Cementations for CAD/CAM Resin Block after Alumina Air Abrasion on Adhesion to Newly Developed Resin Cement

et al. 2021

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“…Use of oligomer contributes to reduce. Long organic chain type SCA such as 3‐methacroxyoctyltrimethoxysilane 34 seems to be useful for both lowering the crosslinking density of network and reducing alcohol generation. Research of SCA with mono‐ethoxy group and bulky organic chains (3‐mercaptopropyl‐ethyoxyl‐di[tridecyl‐pentamethoxy]‐silane) 35 is also done.…”

Section: Resultsmentioning

confidence: 99%

Improvement of coagulating strength and toughness of alkoxysilanes for conservation of cultural heritage

Nakamura

Nagao

Kontani

et al. 2022

J of Applied Polymer Sci

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The optimal restoration agent for the brittle walls of Idout's tomb built 4400 years ago in Saqqara, Egypt, which is located underground in a desert area, was investigated. From x‐ray diffraction analysis of the sand collected near the tomb, the main ingredient is silica. Alkoxysilane and its oligomer are used because its alkoxy groups can react readily with silica. The compressive test of solidified model sand its main component is silica was done. The increase of both molecular weight of oligomer and the content of oligomer with higher molecular weight effectively developed the compressive force. When an earthquake occurs, it is desirable that the reinforced wall will be crushed in ductility. The addition of di‐alkoxy type alkoxysilane to oligomers changed the failure mode from brittle to ductile, because the network becomes looser. When a moderate quantity of di‐alkoxy type is added to oligomers, the solidified model sand deforms with greater displacement, while maintaining a high compressive force. From scanning electron microscopic observation of fractured solidified specimen, alkoxysilane was making the sand particles connect as a binder. Many cracks were clearly observed in the binder layer. Whereas, the formed crack was far smaller for di‐alkoxy added system.

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“…In the present study, all glass fiber posts were silanized, since different authors have reported that applying silane to glass fiber posts improves adhesion to cement and dentin by selectively exposing the glass fibers, unlike other treatments that can cause fractures or cracks, affecting the mechanical stability of the stump. [ 10 20 , 21 26 ] In addition, the application of silane is simple, being a widely accepted pretreatment procedure among researchers. [ 1 27 ]…”

Section: Discussionmentioning

confidence: 99%

“…Instead, silanization is the most commonly used chemical pretreatment when placing a glass fiber post, since coupling agents such as silane are bifunctional molecules in which one end is able to react with the inorganic glass fiber and the other with the organic resin of the luting agent, thus favoring good adhesion. [ 20 21 ]…”

Section: Introductionmentioning

confidence: 99%

Bond strength and failure mode of glass fiber posts with different surface treatments prior to silanization: An in vitro comparative study

Cayo-Rojas¹,

Santander-Rengifo²,

Castillo-Andamayo³

et al. 2023

JISPCD

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A BSTRACT Aim: The use of chemical agents in the surface treatment of glass fiber posts can improve their bond strength to the root canal. The aim of this study was to assess the bond strength and failure mode of glass fiber posts that received different surface treatments prior to silanization. Materials and Methods: In this cross-sectional and in vitro experimental study, 50 human lower premolar roots were randomly divided into five groups and subsequently prepared to receive the cementation of a fiberglass post prior to silanization. They were distributed as group 1 (with 24% hydrogen peroxide), group 2 (with 37% phosphoric acid), group 3 (with 1.23% acidulated phosphate fluoride for 2 minutes), group 4 (with 1.23% acidulated phosphate fluoride for 6 minutes), and group 5 (without pretreatment). After cementation, the roots were sectioned into two discs for each cervical, middle, and apical region. Bond strength was assessed using the push out technique. Adhesive, mixed, and cohesive failure modes were also assessed. For data analysis, ANOVA and Tukey’s post hoc tests were used, as well as Pearson’s chi-square test. A significance of P < 0.05 was considered in all statistical analyses. Results: When comparing the bond strength of root regions, significant differences were obtained in groups pretreated with phosphoric acid ( P = 0.018) and acidulated phosphate fluoride for 2 and 6 minutes ( P = 0.001 and P = 0.000, respectively). Furthermore, significant differences were obtained between posts treated only with silane and those that received phosphoric acid pretreatment ( P = 0.006) and acidulated phosphate fluoride for 6 minutes ( P = 0.001). Significant association of mixed failure mode was observed with hydrogen peroxide ( P = 0.014) and phosphoric acid ( P = 0.006) pretreatments. Cohesive failure was significantly associated with acidulated phosphate fluoride pretreatment for 2 minutes ( P = 0.032) and with posts that did not receive treatment prior to silanization ( P = 0.000). Conclusion: Posts treated only with silane and pretreated with hydrogen peroxide and acidulated phosphate fluoride for 2 minutes presented significantly higher bond strength with respect to those pretreated with phosphoric acid and acidulated phosphate fluoride for 6 minutes. However, acidulated phosphate fluoride for 2 minutes and silane were associated with a better bonding type.

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Bond strength and computational analysis for silane coupling treatments on the adhesion of resin block for CAD/CAM crowns

Cited by 11 publications

References 25 publications

Effects of Immediate and Delayed Cementations for CAD/CAM Resin Block after Alumina Air Abrasion on Adhesion to Newly Developed Resin Cement

Effects of Immediate and Delayed Cementations for CAD/CAM Resin Block after Alumina Air Abrasion on Adhesion to Newly Developed Resin Cement

Improvement of coagulating strength and toughness of alkoxysilanes for conservation of cultural heritage

Bond strength and failure mode of glass fiber posts with different surface treatments prior to silanization: An in vitro comparative study

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