Microshear bond strength according to dentin cleansing methods before recementation

Taşar, Simge; Ulusoy, Mutahhar; Meriç, Gökçe

doi:10.4047/jap.2014.6.2.79

Cited by 14 publications

(17 citation statements)

References 39 publications

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“…It is essential to effectively remove the residual resin cement from the prepared tooth surface before recementing the resin bonded restoration so that the cement remnants do not interfere with recementing process 819262728. Despite the efforts to offer the proper chemical and mechanical methods for cleaning the provisional cement off the tooth surface, no definite protocol is in hand for cleaning the residual permanent cement from the dentin surface.…”

Section: Discussionmentioning

confidence: 99%

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The effect of resin cement type and cleaning method on the shear bond strength of resin cements for recementing restorations

2017

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PURPOSEThis laboratory study assessed the effect of different dentin cleaning procedures on shear bond strength of resin cements for recementing prosthesis.MATERIALS AND METHODS4 × 4 flat surface was prepared on the labial surface of 52 maxillary central incisors. Metal frames (4 × 4 × 1.5 mm) were cast with nickel-chromium alloy. All specimens were randomly divided into 2 groups to be cemented with either Panavia F2.0 (P) or RelyX Ultimate (U) cement. The initial shear bond strength was recorded by Universal Testing Machine at a crosshead speed of 0.5 mm/min. Debonded specimens were randomly allocated into 2 subgroups (n = 13) according to the dentin cleaning procedures for recementation. The residual cement on bonded dentin surfaces was eliminated with either pumice slurry (p) or tungsten carbide bur (c). The restorations were rebonded with the same cement and were subjected to shear test. Data failed the normality test (P < .05), thus were analyzed with Mann Whitney U-test, Wilcoxon signed rank test, and two-way ANOVA after logarithmic transformation (α = .05).RESULTSThe initial shear bond strength of group P was significantly higher than group U (P = .001). Pc and Uc groups presented higher bond strength after recementation compared to the initial bond strength. However, it was significant only in Pc group (P = .034).CONCLUSIONThe specimens recemented with Panavia F2.0 provided higher bond strength than RelyX Ultimate cement. Moreover, a tungsten carbide bur was a more efficient method in removing the residual resin cement and increased the bond strength of Panavia F2.0 cement after recementation.

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Section: Discussionmentioning

confidence: 99%

“…Remnants of previous permanent cements interfere with the etching quality of self-etch primer. They can even prevent the infiltration of adhesive system and subsequent polymerization reaction of monomers 810. Removing residual resin improves the dentin-adhesive system interface and consequently the bond strength 8111213…”

Section: Introductionmentioning

confidence: 99%

The effect of resin cement type and cleaning method on the shear bond strength of resin cements for recementing restorations

2017

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“…As residual endodontic sealer may compromise the longevity of dental restorations, 22,23 further studies should evaluate which substances are effective for removal of endodontic sealer residues, without interfering with the hybrid layer formation after acid etching and application of a dentin adhesive system.…”

Section: Discussionmentioning

confidence: 99%

Effect of the time-point of acid etching on the persistence of sealer residues after using different dental cleaning protocols

et al. 2016

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Endodontic sealer residues remaining within the pulp chamber dentin after root canal obturation and cleaning with various solvents may compromise the appearance and the durability of dental restorations. Acid etching is routinely performed prior to application of dentine adhesive systems, but is effect on residual sealer material and the optimal time-point for performing etching, are unknown. Here, we evaluated the effect of acid etching on the dentin surface when performed either immediately or 7 days after removal of the endodontic sealer with two solvents, i.e., 95% ethanol or xylol. Forty crowns fragments from bovine incisors were impregnated with sealer and divided into 4 groups (n = 10 each), according to the dentin cleaning protocol and to the acid etching time-point: G1, 95.0% ethanol and immediate acid etching; G2, xylol and immediate acid etching; G3, 95.0% ethanol and acid etching after 7 days; and G4, xylol and acid etching after 7 days. Scanning electron microscopy (SEM) images (2000 ×) were obtained from each specimen and the number of open dentinal tubules counted and compared. Another 40 fragments were similarly prepared, and SEM images were obtained (500 ×) to score and compare the persistence of sealer residues on the dentin. G4 showed the most open dentinal tubules and the least epoxy resin-based sealer residues on the dentin surface (p < 0.05). The least epoxy resin-based sealer residues was obtained when acid etching, using 37% phosphoric acid, was performed after 7 days after cleaning the dentin with xylol.

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“…The average output varied from 0.1-8W [32]. For dentin irradiation, several researchers have recommended that irradiation outputs varying from 1.25-5W can be used [33]. High energy values have been related to more harmful thermal effects on dentin, especially when irradiation is not accompanied by cooling.…”

Section: Discussionmentioning

confidence: 99%

Effects of dentin surface treatments including Er,Cr:YSGG laser irradiation with different intensities on the push-out bond strength of the glass fiber posts to root dentin

Kırmalı¹,

Kuştarcı²,

Kapdan³

et al. 2014

Acta Odontologica Scandinavica

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Microshear bond strength according to dentin cleansing methods before recementation

Cited by 14 publications

References 39 publications

The effect of resin cement type and cleaning method on the shear bond strength of resin cements for recementing restorations

The effect of resin cement type and cleaning method on the shear bond strength of resin cements for recementing restorations

Effect of the time-point of acid etching on the persistence of sealer residues after using different dental cleaning protocols

Effects of dentin surface treatments including Er,Cr:YSGG laser irradiation with different intensities on the push-out bond strength of the glass fiber posts to root dentin

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