Determination of residual double bonds in resin–dentin interface by Raman spectroscopy

Miyazaki, Masashi; Onose, H; Iida, Nobuhito; Kazama, Hideki

doi:10.1016/s0109-5641(02)00039-8

Cited by 72 publications

(60 citation statements)

References 35 publications

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“…However, the hybrid layer is not a uniform layer, especially with respect to the existence of nanospaces within the remaining demineralized dentin after phosphoric acid etching 16) . Previous studies using Raman spectroscopy have suggested that the resin monomers of some selfetching primer bonding systems penetrate deeper than the hybrid layer distinguished by argon ion etching 17,18) . Clearfil SE Bond was a fluoride-free, two-step selfetching primer system.…”

Section: Discussionmentioning

confidence: 99%

The acid-base resistant zone in three dentin bonding systems

Inoue¹,

Nikaido²,

Foxton³

et al. 2009

Dent. Mater. J.

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An acid-base resistant zone has been found to exist after acid-base challenge adjacent to the hybrid layer using SEM. The aim of this study was to examine the acid-base resistant zone using three different bonding systems. Dentin disks were applied with three different bonding systems, and then a resin composite was light-cured to make dentin disk sandwiches. After acid-base challenge, the polished surfaces were observed using SEM. For both one-and two-step self-etching primer systems, an acid-base resistant zone was clearly observed adjacent to the hybrid layer -but with differing appearances. For the wet bonding system, the presence of an acid-base resistant zone was unclear. This was because the self-etching primer systems etched the dentin surface mildly, such that the remaining mineral phase of dentin and the bonding agent yielded clear acid-base resistant zones. In conclusion, the acid-base resistant zone was clearly observed when self-etching primer systems were used, but not so for the wet bonding system.

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Section: Discussionmentioning

confidence: 99%

The acid-base resistant zone in three dentin bonding systems

Inoue¹,

Nikaido²,

Foxton³

et al. 2009

Dent. Mater. J.

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“…Proper demineralization of the dentin substrate, uniform resin impregnation and sufficient mechanical strength of the cured adhesive resin are important factors required to create a high-quality resin/dentin interface for good dentin bonding. [2][3] However, there are few laboratory data discussing the bonding characteristics of the newly developed single-step self-etch systems to primary tooth dentin (primary dentin).…”

Section: Introductionmentioning

confidence: 99%

Bonding Efficacy of Single-step Self-etch Systems to Sound Primary and Permanent Tooth Dentin

Uekusa

Yamaguchi

Miyazaki

et al. 2006

Operative Dentistry

Self Cite

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Single-step self-etch systems are capable of producing a predictable bond to primary dentin, although the bond strength was found to be lower than permanent dentin. SUMMARYCurrently, there is little information regarding the bonding efficacy of single-step self-etch systems to primary tooth dentin. This study examined the microtensile bond strength of single-step self-etch systems (Clearfil tri-S Bond and One-Up Bond F Plus) to sound primary and permanent tooth dentin. Adhesives were applied to flat samples of primary and permanent tooth dentin, and resin composites were bonded according to the manufacturers' instructions. After 24 hours of storage in distilled water at 37°C, hour glass-shaped specimens were produced. They were subjected to microtensile testing at a crosshead speed of 1.0 mm/minute. The results were analyzed using 2-way analysis of variance (ANOVA) followed by the Tukey HSD post-hoc test (α α=0.05). Field-emission scanning electron microscopy (FE-SEM) observations of the adhesive-treated dentin surfaces and the resin/dentin interface were also conducted. The bond strengths of primary tooth dentin were significantly lower than that of permanent tooth dentin for both self-etch systems: 44.7 ± 10.4 versus 54.3 ± 9.0 MPa for Clearfil tri-S Bond and 40.6 ± 9.9 versus 50.0 ± 8.7 MPa for One-Up Bond F Plus (p<0.001). There was no statistically significant interaction between the type of adhesive system and the dentin substrate (p=0.957). Although there was no statistically significant difference in the mean values among the different adhesive systems (p=0.094), there was a statistically significant difference in mean values among the different dentin substrates (p<0.001), which were lower for primary tooth dentin than for permanent tooth Operative Dentistry dentin. The failure modes were also independent of the type of dentin but dependent on the adhesive systems, an equal distribution among the 3 types of failure for Clearfil tri-S Bond and cohesive failures in adhesives for One-Up Bond F Plus. FE-SEM observations of dentin to which adhesive had been applied revealed that the smear layer had been removed and the collagen fibers exposed. Though the bond strengths to primary tooth dentin were lower than to permanent tooth dentin, excellent adaptation of the single-step selfetch systems to both dentin substrates was observed by FE-SEM. Further studies are required to determine the long-term clinical performance of these adhesive systems when applied to primary tooth dentin.

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“…Indeed, solvent removal is only easily accomplished during the clinical procedure when acetonebased adhesives are used; once water/ethanol-based adhesives are applied, air-drying will not be able to induce significant solvent evaporation. Moreover, air thinning the bonding resin prior to light irradiation, significantly reduce dentin bond strength because a thinner layer of adhesive will be much more susceptible to oxygen inhibition of the polymerization [12]. This incomplete polymerization of the adhesives will accelerate the water degradation effects [13].…”

Section: Introductionmentioning

confidence: 99%