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

Hamano, Naho; Ino, Satoshi; Fukuyama, Takushi; Hickel, Reinhard; Kunzelmann, Karl‐Heinz

doi:10.4012/dmj.2013-129

Cited by 14 publications

(10 citation statements)

References 17 publications

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“…There were no significant statistical differences in the bond strength of experimental groups in the study. It is consistent with previous studies (6,16,18,23,24,35). It was found that adhesive generation is not important for having a successful composite repair.…”

Section: Shapiro-wilk Test Was Used For Evaluating Data Distributionsupporting

confidence: 92%

Evaluation of Surface Preparations Combined With Different Generations of Bonding on the Bond Strength of Resin Composite Repair: An Original Article

Valian¹,

Nejatifard²,

Salehi³

et al. 2020

Avicenna J Dent Res

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Background: This study evaluated the effect of different mechanical surface preparation methods, as well as different adhesives including universal bonding agents, on the shear bond strength of composite repairs. Methods: This study was experimentally performed on 64 Z250 composite discs (3M, ESPE) with 6 mm diameter and 2 mm height. A total of 60 samples were randomly divided into 6 groups as follows: Group A) diamond milling + Adper Single Bond 2, group B) diamond milling + Single Bond Universal, group C) diamond milling + All Bond Universal, group D) sandblast + Adper Single Bond 2, group E) sandblast + Single Bond Universal, group F) sandblast + All Bond Universal. Then, the new composite was placed on the bonding layer, cured, and underwent aging again. The samples were assessed for shear bond strength by universal testing machine and their failure mode was investigated under the light microscope (20x and 100x). Finally, 4 remaining samples, which were surface-prepared by diamond milling and sandblasting, were evaluated for qualitative analysis of surface roughness using scanning electron microscopy (SEM) and atomic force microscopy (AFM). Data were analyzed by oneway ANOVA and Fisher's exact tests. Results: There was no statistically significant difference in shear bond strength and failure mode among the groups (P > 0.05). However, diamond milling + Single Bond Universal group showed the highest and Adper Single Bond 2 had the lowest bond strength. Conclusions: There was no significant difference in bond strength using different methods. Therefore, diamond milling + Single Bond Universal was suggested as the best and most available method compared to sandblasting.

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Section: Shapiro-wilk Test Was Used For Evaluating Data Distributionsupporting

confidence: 92%

Evaluation of Surface Preparations Combined With Different Generations of Bonding on the Bond Strength of Resin Composite Repair: An Original Article

Valian¹,

Nejatifard²,

Salehi³

et al. 2020

Avicenna J Dent Res

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“…SIL-based composite is more resistant to water sorption and disintegration, and this leads to smaller changes in material properties resulting from aging. [24,27] SIL-based composite could only be used effectively as a repair composite for aged SIL with the surface treatment combination of DB and OA. Although, the poor shear bond strength results along with the high rate of adhesive failures that the failure mode analysis showed for this group are evidence of the weakness of bonding in this context.…”

Section: Discussionmentioning

confidence: 99%

“…On the contrary a new research on microtensile bond strength of SIL-based composites repaired with MC-based composites showed that silane did not contributed to an increase in the tensile strength. [24] In this study, a silane solution was not employed prior to the adhesive, in order to focus on the influence of grinding and conditioning of the repair surface on the bond. Implementation of silane enhances the wetting of the surface for the bonding agent, which then infiltrates easily into the irregularities created by the surface roughening.…”

Section: Discussionmentioning

confidence: 99%

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The reparability of contemporary composite resins

et al. 2014

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Objective:The objective was to investigate the way that various surface treatments could influence the bond strength of the repair of methacrylate (MC) and silorane (SIL) composites.Materials and Methods:A total of 160 MC and SIL cylindrical specimens were polymerized and aged in artificial saliva solution for 7 days. Depending on the following surface treatment (diamond bur or air abrasion), and the conditioning procedure (orthophosphoric acid or sodium hypochlorite), 16 groups were formed and repaired either with MC, either with SIL composite. Repaired specimens were subjected to an additional aging procedure in artificial saliva for 7 days, followed by thermo-cycling and then stressed in shear at a rate of 0.5 mm/min until failure. Failure patterns were analyzed using stereomicroscope and scanning electron microscopy.Results:MC composite showed statistically significant higher bond strength both as a base or repair material than SIL (P < 0.001). Statistically significant differences were not observed, when grinding and conditioning procedures was compared. Pretest failures were observed when aged MC-based composite was repaired with SIL-based.Conclusions:Type of composite seems to be the main factor influencing the bond strength of the repair. MC-based composite showed better repairability than SIL composite. Optimum repair conditions should include knowledge of the composite's composition.

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“…Despite improvements in the properties of composite materials, phenomena such as fracture of the restoration, chipping and discoloration may occur, the dentist needing to repair or replace that obturation [3].…”

mentioning

confidence: 99%

MicroCT Analisys of Dental Adhesives Loaded with Nanoparticles

Zaharia¹,

Sinescu²,

Gabor³

et al. 2019

Rev. Chim.

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Dental decay is an infectious disease that affects more and more people. Dental Restoration Materials are not infallible, after filling a tooth with composite materials, and secondary caries may appear. One of the possible causes involved in the appearance of secondary caries is generated by the uneven thickness of the layer of adhesive that can be fractured by microinfiltration areas. The purpose of this study is to evaluate a new type of dental adhesive that has been loaded with ferric nanoparticles. The thickness of the adhesive layer used in the restoration of the various types of cavities on the surface of the teeth, which were coated with copolymerizable composite materials, was evaluated, making a comparison between the thickness of the uncoated adhesive layer and the thickness of the adhesive loaded with ferric nanoparticles.In this study, 20 extracted teeth were used which presented various carious lesions. The dental caries were removed resulting class I and II Black cavities. The restoration of the cavities was made using adhesive techniques and photopolymerizable fluid-type composites, the adhesive layer being analyzed by the microCT.

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

Cited by 14 publications

References 17 publications

Evaluation of Surface Preparations Combined With Different Generations of Bonding on the Bond Strength of Resin Composite Repair: An Original Article

Evaluation of Surface Preparations Combined With Different Generations of Bonding on the Bond Strength of Resin Composite Repair: An Original Article

The reparability of contemporary composite resins

MicroCT Analisys of Dental Adhesives Loaded with Nanoparticles

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