Effect of simulated pulpal pressure on dentin permeability and adhesion of self-etch adhesives

Sauro, Salvatore; Pashley, David H.; Montanari, Emanuele; Chersoni, Stefano; Carvalho, Ricardo Marins de; Toledano, Manuel; Osorio, Raquel; Tay, Franklin R.; Prati, Carlo

doi:10.1016/j.dental.2006.06.010

Cited by 144 publications

(167 citation statements)

References 28 publications

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“…[5][6][7] Previous one-step self-etching adhesives had low pH (less than 1) due to the composition which was based on acidic primers with a high concentration of hydrophilic monomers. This category of adhesives seems to produce a low degree of conversion, forming regions of incomplete polymerization, which are capable of attracting water and increasing permeability through the bonded interfaces.…”

Section: Declaration Of Interestsmentioning

confidence: 99%

Effect of adhesive system and application strategy on reduction of dentin permeability

et al. 2012

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This study evaluated the effect of adhesive systems and application strategies on dentin hydraulic conductance (HC). The buccal enamel was removed from bovine incisors to simulate laminate cavity preparations. After removing the roots and the coronal pulp, the buccal dentin was treated with EDTA solution (0.5 M) for 5 minutes, rinsed, ultrasonicated for 12 minutes and connected to a permeability device. HC of the specimens was measured at 10 psi (n = 5). Permeability was measured before and after bonding procedures using G-Bond (GB), Clearfil Tri-S Bond (CTS), Hybrid Coat (HY), Bond Force (BF), Adper Easy Bond (AEB) Silorane (SI), Clearfil SE Bond (CSE) and Adper Scotchbond Multi-Purpose (SMP) adhesives systems, which were applied following three strategies: 1) according to the manufacturers' instructions; 2) two coats of all-in-one self-etching adhesives (GB, CTS, HY, BF, AEB) or priming step plus two coats of bonding resin for the other systems (SI, CSE and SMP); and 3) a thin layer of a flowable composite applied over one coat of all-in-one self-etching adhesives or primed surface for SI, CSE and SMP adhesives. No significant difference was observed among the application modes concerning their ability to reduce HC. None of the adhesives showed complete sealing (100%) of the bovine tooth dentin. SI exhibited lower HC than SMP, however, they were not significantly different from the other systems. The results suggest that all systems tested result in an HC reduction of more than 90%. The wet bonding technique seemed to be more sensitive for dentin sealing.

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Section: Declaration Of Interestsmentioning

confidence: 99%

Effect of adhesive system and application strategy on reduction of dentin permeability

et al. 2012

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“…Thus, MDPB would be immobilized within the polymer network and would not induce weakness or degradation in the bonding layer through dissolution and substitution by water 23) . On this score, PB exhibited significantly lower permeability compared to TS and other adhesives under simulated pulpal pressure 36) . With enamel, PB exhibited a bonding behavior different from that with dentin.…”

Section: Discussionmentioning

confidence: 99%

Effects of One-year Storage in Water on Bond Strength of Self-etching Adhesives to Enamel and Dentin

et al. 2008

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The aim of this study was to compare the bond strengths of three self-etching materials during one year of storage. Clearfil SE Bond (SE), Clearfil Protect Bond (PB), and Clearfil Tri-S Bond (TS) were used for bonding to dentin and enamel according to manufacturer' s instructions. Microshear bond strength values were measured after 24 hours, six months, and one year. Two-way ANOVA showed that the interaction of material type and storage time was significant for dentin. At baseline, SE had the highest bond strength to dentin. There were no significant changes in bond strength for each material during the storage period, except for PB which showed increased bond strength to dentin after one year. All materials performed reliably after one year. However, the antibacterial and fluoride-releasing effects of PB would further contribute to the long-term clinical benefits of this material.

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“…In a study by Sauro et al, it was also suggested that water from within the dentinal structure led to bond strength reduction 15) . This was because water flow from within the dentinal structure not only impeded the diffusion of hydrophobic monomer into dentin, but also hindered the curing of adhesive monomer at the adhesive interface.…”

Section: Discussionmentioning

confidence: 99%

Diffusion of GM primer and dentin adhesive into EDTA-conditioned dentin

et al. 2010

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The aim of this study was to investigate the diffusion of red-stained experimental GM primer and blue-stained dentin bonding agent into EDTA-conditioned dentin and the effect of GM priming on contraction gap formation. After GM priming at 0, 35, 70, or 100 vol%, marginal adaptation was evaluated by measuring the wall-to-wall contraction gap width of a light-activated resin composite (Palfique Estelite, Tokuyama Dental, Japan) mediated with a commercial dentin bonding agent (Clearfil Photo Bond, Kuraray Medical, Japan). Contraction gap formation was completely prevented when treated with 35 vol% GM primer. Moreover, after treatment with 35 vol% GM, the red and blue dyes of stained GM primer and dentin bonding agent diffused up to a depth of 40 µm into the dentin surface. The diffusion of primer and bonding agent into EDTA-conditioned dentin was essential for bonding efficacy although SEM observation revealed an absence of hybrid layer formation.

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Effect of simulated pulpal pressure on dentin permeability and adhesion of self-etch adhesives

Cited by 144 publications

References 28 publications

Effect of adhesive system and application strategy on reduction of dentin permeability

Effect of adhesive system and application strategy on reduction of dentin permeability

Effects of One-year Storage in Water on Bond Strength of Self-etching Adhesives to Enamel and Dentin

Diffusion of GM primer and dentin adhesive into EDTA-conditioned dentin

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