Histomorphologic characterization and bond strength evaluation of caries-affected dentin/resin interfaces: Effects of long-term water exposure

Erhardt, Maria Carolina Guilherme; Toledano, Manuel; Osorio, Raquel; Pimenta, Luiz André Freire

doi:10.1016/j.dental.2007.09.007

Cited by 108 publications

(130 citation statements)

References 29 publications

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“…However, CAD is commonly seen after excavation of caries where the restorative material is bonded 16) . The bond between adhesive material and sound dentin is stronger than with CAD 17) . CAD is more porous and softer than sound dentin due to partial demineralization, with narrow and obliterated dentinal tubules due to deposition of intratubular dentin and with a hybrid layer thicker than that of sound dentin 18) .…”

Section: Introductionmentioning

confidence: 98%

“…CAD is more porous and softer than sound dentin due to partial demineralization, with narrow and obliterated dentinal tubules due to deposition of intratubular dentin and with a hybrid layer thicker than that of sound dentin 18) . The interfaces of bonded CAD are more vulnerable to hydrolytic degradation than sound dentin bonds CAD 17) . Furthermore, there are significant dissimilarities in the bond interface, adhesive infiltration and depth of demineralization of CAD as compared to sound dentin CAD 17) .…”

Section: Introductionmentioning

confidence: 99%

“…The interfaces of bonded CAD are more vulnerable to hydrolytic degradation than sound dentin bonds CAD 17) . Furthermore, there are significant dissimilarities in the bond interface, adhesive infiltration and depth of demineralization of CAD as compared to sound dentin CAD 17) . Longevity of a restoration is predicted to some extent by its adhesive ability, and this in turn can be measured by bond strength testing 16) .…”

Section: Introductionmentioning

confidence: 99%

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Shear bond strength of different dentin substitute restorative materials to dentin of primary teeth

et al. 2016

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This in vitro investigation compared the shear bond strength (SBS) of four dentin substitute/replacement materials to caries-affected dentin of primary teeth. Dentin surfaces were randomly divided into four groups of 12 each according to the material used as follows: SDR/Smart Dentin Replacement, Biodentine, Multicore Flow, and Fuji II LC. The SBS was measured and failure modes were determined. There was a statistically significant difference in the mean values of SBS among the four materials (F=741.523, p<0.0001). The mean values of SBS of SDR were statistically significantly higher followed by Multicore Flow compared to the other groups. The mean values of the four materials were significantly different from each other in all combinations of pairs of four materials. The SBS between the four dentin substitute/replacement materials to dentin of primary teeth was significantly different. The highest SBS was for SDR followed by Multicore Flow then Fuji II LC and the lowest was for Biodentine.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shear bond strength of different dentin substitute restorative materials to dentin of primary teeth

et al. 2016

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“…12-Methacryloyloxydodecylpyridinium bromide / MDPB), 66,68,93,125,142,143 incorporated into the primer of Clearfil Protect Bond, Kuraray,(6) and dimethyl sulfoxide (DMSO), 144,145,146 correspondingly. As further efforts are required to ratify related initial encouraging results, for compiled deeper information, one should refer to Perdigão et al 40 and Tjäderhane.…”

Section: Enzymatic Inhibitorsmentioning

confidence: 99%

Bonding efficiency and durability: current possibilities

et al. 2017

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Bonding plays a major role in dentistry nowadays. Dental adhesives are used in association with composites to solve many restorative issues. However, the wide variety of bonding agents currently available makes it difficult for clinicians to choose the best alternative in terms of material and technique, especially when different clinical situations are considered. Moreover, although bonding agents allow for a more conservative restorative approach, achieving a durable adhesive interface remains a matter of concern, and this mainly due to degradation of the bonding complex in the challenging oral environment. This review aims to present strategies that are being used or those still in development which may help to prevent degradation. It is fundamental that professionals are aware of these strategies to counteract degradation as much as possible. None of them are efficient to completely solve this problem, but they certainly represent reasonable alternatives to increase the lifetime of adhesive restorations.

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“…Using this procedure it was removed all soft, stainable, carious dentin. It was left the relatively hard, caries-affected non staining dentin, on the experimental side (Erhardt et al, 2008). A 180-grit silicon carbide (SiC) abrasive paper mounted on a water-cooled polishing machine (LaboPol-4, Struers, Copenhagem, Denmark) was used to produce a clinically relevant smear layer (Koibuchi et al, 2001).…”

Section: Samples Preparationmentioning

confidence: 99%

A zinc chloride-doped adhesive facilitates sealing at the dentin interface: A confocal laser microscopy study

Toledano

Osorio

et al. 2017

Journal of the Mechanical Behavior of Biomedical Materials

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The aim of this study was to understand the effect of Zn-doping of adhesives and mechanical load cycling on the micromorphology of the resin-dentin interdiffusion zone (of sound and caries affected dentin). The investigation considered two different Zndoped adhesive approaches and evaluated the interface using confocal laser scanning microscopy. Sound and carious dentin-resin interfaces of unloaded specimens were deficiently resin-hybridized, in general. These samples showed a rhodamine B-labeled hybrid layer and adhesive layer completely affected by fluorescein penetration (nanoleakage) through the porous resin-dentin interface, but thicker after phosphoric acid-etching and more extended in carious dentin. Zn-doping promoted an improved sealing of the resin-dentin interface at dentin, a decrease of the hybrid layer porosity, and an increment of dentin mineralization. Load cycled augmented the sealing of the Zn-doped resin-dentin interfaces, as porosity and nanoleakage diminished, and even disappeared in caries-affected dentin substrata conditioned with EDTA. Sound and carious dentin specimens treated with the xylenol orange technique produced a clearly outlined fluorescence when resins were Zn-doped, due to a consistent Ca-mineral deposits within the bonding interface and inside the dentinal tubules, especially when load cycling was applied on specimens treated with Zn-doped bonding components of self-etching adhesives. Micropermeability at the resin-dentin interface diminished after combining EDTA pretreatment, ZnCl2-doping and mechanical loading stimuli on restorations. It is clearly preferable to include the zinc compounds into the bonding constituents of the self-etching adhesives, instead of into the primer ingredients. The promoted new mineral segments contributed to reduce or avoid both porosity and nanoleakage from the load cycled Zn-doped resin dentin interface.

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Histomorphologic characterization and bond strength evaluation of caries-affected dentin/resin interfaces: Effects of long-term water exposure

Cited by 108 publications

References 29 publications

Shear bond strength of different dentin substitute restorative materials to dentin of primary teeth

Shear bond strength of different dentin substitute restorative materials to dentin of primary teeth

Bonding efficiency and durability: current possibilities

A zinc chloride-doped adhesive facilitates sealing at the dentin interface: A confocal laser microscopy study

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