A Study on Repair Restoration of High-Filler-Content Prosthetic Composite Resins. Effect of Surface Treatment Conditions on Bending Bond Strength.

Kawamoto, Yoshikazu; Hinokiyama, Norihide; Nemoto, Mitsutaka; Shima, Hiromitsu; Kawahara, Kazushige; Shimada, Kazuki; Yoshinari, Katsuumi; Asano, Sumiaki; Kakehashi, Yoshiyuki; Igarashi, Takayoshi; Saitoh, Masahiro; Nishiyama, Minoru

doi:10.2186/jjps.45.632

Cited by 5 publications

(3 citation statements)

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“…The silorane-based composites also lack an unpolymerized surface layer, although such a layer is found in methacrylate-based composites due to the deactivated polymerization initializing radicals, because the cationic ring-opening process of the silorane composite is insensitive to oxygen 6) . The most common suggestions include increased surface roughness 7,8) , silane treatment 9,10) and the application of a low viscous bonding agent 10,11) . In our previous study, we evaluated the effects of surface treatments on the bond strengths of repaired methacrylate-based dental composite materials including nanofillers 12) and repaired silorane-based dental composite materials 13) .…”

Section: Introductionmentioning

confidence: 99%

Repair of silorane-based composites: Microtensile bond strength of silorane-based composites repaired with methacrylate-based composites

et al. 2013

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The purpose of our study was to evaluate the effects of surface treatment on the microtensile bond strength (MTBS) of silorane-based composites (Filtek Silorane, 3M ESPE) repaired with methacrylate-based composites (Ceram X, Dentsply). The MTBS were measured before or after thermo-mechanical fatigue simulation (FS). The surface conditioning regimes were: no treatment, bonding agent, silane, and silane+bonding agent. Before and after FS, no significant differences could be observed among the different pretreatment groups. FS did not change the MTBS although FS increased the repair strength of Silorane in our previous study under the same conditions, and after FS all of the failure modes showed adhesive failure, which means that the repair bond strengths between silorane-based composite and methacrylate-based composite were not durable. In conclusion, within the limitations of this study, with this composite neither bonding agent nor silane contributed to an increase in the tensile strength.

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Section: Introductionmentioning

confidence: 99%

Repair of silorane-based composites: Microtensile bond strength of silorane-based composites repaired with methacrylate-based composites

et al. 2013

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“…As aged restorations do not contain an unpolymerized surface layer, several techniques are suggested to maximize the composite repair strength. The most common methods are increasing the surface roughness, using a silane treatment 3) and applying a low-viscosity bonding agent 4,5) . The application of silane is based on the assumption that roughly 50 vol% of the composite consists of glass fillers, which means that any surface area of a composite should have roughly 50% exposed filler surfaces as well.…”

Section: Introductionmentioning

confidence: 99%

Effect of different surface treatments on the repair strength of a nanofilled resin-based composite

et al. 2011

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The purpose of our study was to re-evaluate the effects of surface treatment on the bond strength of repaired methacrylate-based dental composite materials including nanofillers (Ceram X, Dentsply). The microtensile bond strengths were measured before or after thermo-mechanical fatigue simulation. The treatments were as follows: (1)No treatment (negative control), (2)Bonding agent, (3) Acetone, (4)Acetone+Bonding agent, (5)Silane, (6)Silane+Bonding agent. In the digitized SEM image of the polished aged specimens without any surface treatment, the percentage of the visible fillers relative to the whole image was calculated. Before and after fatigue, no significant differences could be observed among the different pretreatment groups. Fatigue increased the microtensile strength values of Acetone and Silane groups. The digitized SEM image reveals that 11.5% of the exposed surface could be identified as uncovered filler surface. None of surface treatments (acetone, silane and bonding agent) contributed to increase the tensile strength of repaired composite samples including nanofillers.

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“…To enhance the bonding of resin composites to a porcelain surface silanated by a ceramic primer, the manufacturer typically recommends the following procedure: (1) apply the adhesive agent on the silanated porcelain surface; and (2) irradiate with visible light. This process is recommended so as to polymerize the applied adhesive agent 13,14) . The adhesive agent serves to improve the "wettability" (spreading) of the resin composite on the silanated porcelain surface, thus avoiding the possible development of any bonding defects at the resin-porcelain interface.…”

Section: Discussionmentioning

confidence: 99%

Effects from Applying Adhesive Agents onto Silanated Porcelain Surface on the Resin Bond Durability

et al. 2008

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This study examined the effects on the bond durability of resins arising from the application of adhesive agent on porcelain surface, silanated by a ceramic primer consisting of γ-methacryloxypropyltrimethoxysilane (γ-MPTS), by comparing shear bond strengths before and after thermocycling. When an adhesive agent was applied to a porcelain surface which had been silanated by a ceramic primer for 10 seconds, a significant reduction in resin bonding durability was observed. Extending the silanating period of the ceramic primer to 60 minutes resulted in an increase in resin bonding durability to the porcelain surface. However, the effect on resin bonding durability resulting from the application of adhesive agent was nearly the same as that without adhesive agent application, even though the porcelain surface was silanated for 60 minutes. In other words, positive effects arising from adhesive agent application on resin bonding durability were not observed.

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A Study on Repair Restoration of High-Filler-Content Prosthetic Composite Resins. Effect of Surface Treatment Conditions on Bending Bond Strength.

Cited by 5 publications

References 0 publications

Repair of silorane-based composites: Microtensile bond strength of silorane-based composites repaired with methacrylate-based composites

Repair of silorane-based composites: Microtensile bond strength of silorane-based composites repaired with methacrylate-based composites

Effect of different surface treatments on the repair strength of a nanofilled resin-based composite

Effects from Applying Adhesive Agents onto Silanated Porcelain Surface on the Resin Bond Durability

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