Bond strength and ultimate tensile strength of resin composite filled into dentine cavity; effect of bulk and incremental filling technique

Nayif, Maan M.; Nakajima, Masatoshi; Foxton, Richard M.; Tagami, Junji

doi:10.1016/j.jdent.2007.12.006

Cited by 31 publications

(18 citation statements)

References 17 publications

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“…The application technique of the resin composite may also influence the bonding effectiveness. 36 In this study, the incremental technique was used in all restorations, as it has been demonstrated to benefit the bond strength of both methacrylatebased 37,38 and silorane composites. 36 The higher polymerization shrinkage of Filtek Z250 combined with high C-factor may create a more unfavorable environment than is associated with Filtek Silorane, as the silorane composite has been reported to undergo up to 1% volumetric shrinkage, 5 according to the manufacturer's information.…”

Section: Discussionmentioning

confidence: 99%

Clinical Evaluation of a Low-shrinkage Composite in Posterior Restorations: One-Year Results

Baracco¹,

Perdigão²,

Cabrera³

et al. 2012

Operative Dentistry

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Filtek Silorane showed acceptable clinical performance after one year. However, the lowshrinkage resin combined with the self-etch adhesive did not provide any advantage over the methacrylate-based composite combined with the total-etch adhesive. SUMMARYObjectives: The aim of this study was to compare the one-year clinical performance of three restorative systems, which included a novel low-shrinkage composite and two bonding strategies.Materials and Methods: Twenty-five patients received three Class I (occlusal) or Class II restorations performed with one of three restorative systems: Filtek Silorane Restorative System (FS); Adper Scotchbond 1 XT, a twostep etch-and-rinse adhesive, with Filtek Z250 (XT); and Adper Scotchbond SE, a two-step self-etch adhesive, with Filtek Z250 (SE). All materials were applied following the manufacturer's instructions. Two independent observers evaluated the restorations at baseline, after six months, and after one year, according to the United States Public Health System modified criteria. The Kruskal-Wallis test and the Mann-Whitney U-test were computed to compare the behavior of the restorative systems; Friedman and Wilcoxon tests were used to analyze the intrasystem data (a=0.05).Results: All restorations were evaluated at one year. FS and XT performed statistically similarly at one year, but marginal staining for SE was statistically worse. Intrasystem comparisons between baseline and one year also showed deterioration of marginal staining for SE, while a deterioration of the marginal adaptation was recorded for both SE and FS. XT was the only system for which there was no

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Section: Discussionmentioning

confidence: 99%

Clinical Evaluation of a Low-shrinkage Composite in Posterior Restorations: One-Year Results

Baracco¹,

Perdigão²,

Cabrera³

et al. 2012

Operative Dentistry

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“…26 The choice of a large and unfavorable C-factor cavity, as well as the bulk insertion technique, was made specifically to concentrate the task of sealing the cavities on the restorative system. Therefore, based on the results of this particular study, associated with the information available in the literature, the layering technique remains recommended even for the low-shrinking materials.…”

Section: Discussionmentioning

confidence: 99%

Low shrinkage composite resins: influence on sealing ability in unfavorable C-factor cavities

et al. 2011

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“…If the contraction force is greater than the bond strength between dentin and resin, it will accumulate stress to cause micro cracks or debonding [24,25]. Bulk-filling using contemporary resin materials results in larger contraction gaps compared to the incremental filling method and will leave uncured resin if the depth is greater than the depth of cure limit.…”

Section: Introductionmentioning

confidence: 99%

In vitro evaluation of adhesive characteristics of 4-META/MMA-TBB resin with organic filler

et al. 2015

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Dentin Self etching a b s t r a c tObjectives. A commercial restorative material, BondfillSB (BF), is a modification of 4-META/MMA-TBB resin cement. BF uses a self-etching primer and added pre-polymerized organic fillers. We compared BF with another self-etching system, EasyBond (EB), in shear bond strength, bonded interface characteristics to human dentin and contraction gap when used in bulk-filling.Methods. Shear bond strength of BF and EB + Z100 (Z), bonded by different experience-level operators, was evaluated. Bonded interfaces were characterized by SEM, AFM, and AFM based nano-indentation. Contraction gaps (CG) at 0 h and 24 h after polymerization were evaluated for BF or EB bulk filled class I cavities. To meet the clinical recommendation, BF's powder was replaced by experimental radioopaque powder (BFO) for the CG study. EB was used with Z (EBZ) or with a resin marketed for bulk-fill base (SureFil-SDR-flow (EBSF)).Results. Shear bond strengths (Mean ± Standard Deviation (S.D.)) of BF (37.4 ± 2.6 MPa; n = 36) were higher and less variable than EBZ (18.2 ± 7.6 MPa; n = 36) (p < 0.0001, One-way ANOVA).Weibull characteristic strength (Á) differed significantly between materials (p < 0.0001) but not between operators (p = 0.90). EBZ often had non-uniform interfaces and a wider band of reduced elastic modulus (E) of greater than 20 m across the interface. BF had uniform interfaces and a smaller width of affected dentin under the interface (∼1 m). There was a difference in dentin-E between EBZ and BF up to 9 m from the interface (mixed-effects model; P = 0.03). A stratified linear regression model used for CG. EBSF and BFO showed significantly smaller CG than EBZ at time 0. None of three combinations showed any significant change between 0h-CG and 24h-CG.Significance. BF possessed bonding characteristics required to serve as a restorative.

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Bond strength and ultimate tensile strength of resin composite filled into dentine cavity; effect of bulk and incremental filling technique

Cited by 31 publications

References 17 publications

Clinical Evaluation of a Low-shrinkage Composite in Posterior Restorations: One-Year Results

Clinical Evaluation of a Low-shrinkage Composite in Posterior Restorations: One-Year Results

Low shrinkage composite resins: influence on sealing ability in unfavorable C-factor cavities

In vitro evaluation of adhesive characteristics of 4-META/MMA-TBB resin with organic filler

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