Effect of removal of surface collagen fibrils on resin–dentin bonding

Prati, Carlo; Chersoni, Stefano; Pashley, David H.

doi:10.1016/s0109-5641(99)00052-4

Cited by 131 publications

(151 citation statements)

References 11 publications

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“…This failure primarily accounted where demineralized collagen fibrils were exposed and the resin failed to envelop the collagen network, properly (Prati et al, 1999;Toledano et al, 2006). The increase in the percentage of adhesive failures may be interpreted as a result of the strengthening of the resin-dentin interface from remineralization .…”

Section: Discussionmentioning

confidence: 99%

Ions-modified nanoparticles affect functional remineralization and energy dissipation through the resin-dentin interface

Toledano

Osorio

et al. 2017

Journal of the Mechanical Behavior of Biomedical Materials

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The aim of this study was to evaluate changes in the mechanical and chemical behavior, and bonding ability at dentin interfaces infiltrated with polymeric nanoparticles (NPs) prior to resin application. Dentin surfaces were treated with 37% phosphoric acid followed by application of an ethanol suspension of NPs, Zn-NPs or Ca-NPs followed by the application of an adhesive, Single Bond (SB). Bonded interfaces were stored for 24 h, submitted to microtensile bond strength test, and evaluated by scanning electron microscopy. After 24 h and 21 d of storage, the whole resin-dentin interface adhesive was evaluated using a Nano-DMA. Complex modulus, storage modulus and tan delta (δ) were assessed. AFM imaging and Raman analysis were performed. Bond strength was not affected by NPs infiltration. After 21 d of storage, tan δ generally decreased at Zn-NPs/resin-dentin interface, and augmented when Ca-NPs or non-doped NPs were used. When both Zn-NPs and Ca-NPs were employed, the storage modulus and complex modulus decreased, though both moduli increased at the adhesive and at peritubular dentin after Zn-NPs infiltration. The phosphate and the carbonate peaks, and carbonate substitution, augmented more at interfaces promoted with Ca-NPs than with Zn-NPs after 21 d of storage, but crystallinity did not differ at created interfaces with both ions-doped NPs. Crosslinking of collagen and the secondary structure of collagen improved with Zn-NPs resin-dentin infiltration. Ca-NPs-resin dentin infiltration produced a favorable dissipation of energy with minimal stress concentration trough the crystalline remineralized resin-dentin interface, causing minor damage at this structure.

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Section: Discussionmentioning

confidence: 99%

Ions-modified nanoparticles affect functional remineralization and energy dissipation through the resin-dentin interface

Toledano

Osorio

et al. 2017

Journal of the Mechanical Behavior of Biomedical Materials

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“…Most published data are from in vitro studies that used different methodologies (for example, type of NaOCl, application time and technique, type of adhesive). 7,[13][14]17 The evidence of reflectance FTIR microspectroscopy and tapping mode atomic force microscopy suggest that NaOCl treatment of acid-etched dentin reduces the surface organic matrix but does not affect carbonates and phosphates.…”

Section: Introductionmentioning

confidence: 99%

2-year Clinical Evaluation of Sodium Hypochlorite Treatment in the Restoration of Non-carious Cervical Lesions: A Pilot Study

Saboia

Almeida

Ritter

et al. 2006

Operative Dentistry

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This pilot study evaluated the effect of removing acid-etch-exposed dentin collagen on the clinical performance of composite restorations of noncarious cervical lesions placed using 2 different adhesive systems. Fifty-six restorations were placed in 14 subjects, each subject receiving at least 4 restorations. No cavity preparation or mechanical retention form was used. The variables tested were: 1) dentin treatment prior to application of the adhesive (acid-etch only vs acid-etch and collagen removal) and 2) type of adhesive (acetone-vs ethanol-based). For the acid-etch only groups, enamel and dentin were etched with 37% phosphoric acid for 15 seconds, rinsed and blot dried. Prime & Bond 2.1 (Dentsply Caulk) or Single Bond (3M ESPE) was applied and light-cured according to the manufacturer's instructions. For the acid-etch and collagen removal groups, the enamel and dentin were etched and rinsed in the same manner and a 10% sodium hypochlorite (NaOCl) solution was applied for 60 seconds and rinsed before adhesive application. Filtek Z-250 (3M ESPE) was applied to all specimens and light-cured according to the manufacturer's instructions, and the restorations were finished and polished immedi- The use of 10% sodium hypochlorite to remove exposed collagen after acid-etching did not affect the clinical performance of composite restorations of non-carious cervical lesions. Saboia & Others: Clinical Evaluation of NaOCl Dentin Treatment in Non-carious Cervical Lesionsately. The restorations were evaluated for preand post-operative sensitivity, retention, marginal staining and secondary caries at baseline, 12 and 24 months after placement, using modified USPHS criteria. Data were analyzed using the Kruskal-Wallis and Wilcoxon statistical tests (p=0.05). At 24 months, the retention rates for Prime & Bond 2.1 with and without NaOCl pretreatment were 80% and 63%, respectively. The corresponding retention rates for Single Bond were 70% and 90%. Marginal staining was minimal. Statistical analyses revealed no significant differences at any time interval between groups for retention or marginal staining. No post-operative sensitivity or secondary caries was detected during the study.

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“…17,19,40 Perdigão et al, 17 Saboia et al 19 and Prati et al 40 showed that using sodium hypochlorite for removal of organic materials from demineralized dentin before the application of Single Bond (water/alcohol-based( significantly decreases the shear bond strength. This lower strength is probably due to the slower diffusion of alcoholic solvents compared to acetone solvents.…”

Section: Discussionmentioning

confidence: 99%

“…43 The insignificant difference between groups regarding shear bond strength in the current study, despite using one-step-plus acetone bonding compared to other acetone bondings can be explained as following: acidic monomers in the bonding systems with low pH (e.g. Prime & Bond 2-1( may re-etch the inorganic phase of dentin surface which is free from collagen in the depth of 0.3-0.5 µm, so a hybrid layer may be created, which is enough for a high bond strength, 40,44 One-Step Plus bonding is mildly acidic (pH = 4-5( to re-etch deproteinized dentin surface. On the other hand, pH can affect polymerization as well.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Er:YAG Laser Irradiation and Different Concentrations of Sodium Hypochlorite on Shear Bond Strength of Composite to Primary Teeth’s Dentin

2017

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Effect of removal of surface collagen fibrils on resin–dentin bonding

Cited by 131 publications

References 11 publications

Ions-modified nanoparticles affect functional remineralization and energy dissipation through the resin-dentin interface

Ions-modified nanoparticles affect functional remineralization and energy dissipation through the resin-dentin interface

2-year Clinical Evaluation of Sodium Hypochlorite Treatment in the Restoration of Non-carious Cervical Lesions: A Pilot Study

The Effect of Er:YAG Laser Irradiation and Different Concentrations of Sodium Hypochlorite on Shear Bond Strength of Composite to Primary Teeth’s Dentin

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