Adhesive Bonding of Various Materials to Hard Tooth Tissues: Improvement in Bond Strength to Dentin

Bowen, R.L.; Cobb, Everett N.; Rapson, J.E.

doi:10.1177/00220345820610090901

Cited by 244 publications

(108 citation statements)

References 11 publications

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“…When resin cement was applied to the uncured adhesive layer, the adhesive layer was replaced by a new combined layer composed of a mixture of resin cement and adhesive resin. Without the presence of a co-initiator, such as benzene sulfinic acid sodium salt, the tertiary amines from the peroxideamine component can react with acidic monomers to form a charge transfer complex (CT complex) 21 and loose their ability as reducing agents in redox reaction, [19][20][21][22] and a poor polymerization reaction can be expected from the combined adhesive/resin cement layer. However, when a separate co-initiator component is added to the adhesive resin, it reacts with the acidic monomers to form a phenyl-free radical against the CT complex.…”

Section: Fractured Specimen Using All Bond 2 When Primer Was Light mentioning

confidence: 99%

Effect of Curing Mode on Microtensile Bond Strength to Dentin of Two Dual-cured Adhesive Systems in Combination with Resin Luting Cements for Indirect Restorations

Arrais

Giannini

Pashley³

2007

Operative Dentistry

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SUMMARYThis study evaluated the microtensile bond strength (µTBS) of dual-cured adhesive systems when the different components were either light activated or left in the uncured state prior to cementation of an indirect composite restoration. Occlusal dentin surfaces of 40 human third molars were flattened. The teeth were randomly assigned to 8 groups (n=5) according to the dualcured systems (bonding agents/resin cements) and curing modes: All Bond 2/Duolink (AB2-BISCO Inc) and Optibond Solo Plus Dual Cure/Nexus 2 (SOLO-Kerr). Resin cements were applied to pre-cured resin composite discs (2 mm thick/Z-250/3M ESPE), which were fixed to dentin surfaces containing adhesive resin in either cured (LP) or uncured states (SP). The restored teeth were light activated according to the manufacturers' instructions (LRC-XL3000/3M ESPE) or allowed to self-cure (SRC). The restored teeth were water-stored at 37°C for 24 hours. They were then both mesial-distally and buccal-lingually sectioned to obtain bonded specimens (1.2 mm 2 ). Each specimen was tested in tension at a crosshead speed of 0.6 mm/minute until failure. Data (MPa (SD)) were analyzed by two-way ANOVA and Tukey's post-hoc test (p<.05). AB2/SP exhibited higher µTBS than AB2/LP (p=.00001); however, no significant differences were noted between SOLO/LP and SOLO/SP. Results suggested that dual-cured adhesive systems were as strong or even stronger when they were left in the uncured state prior to indirect resin composite cementation.

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Section: Fractured Specimen Using All Bond 2 When Primer Was Light mentioning

confidence: 99%

Effect of Curing Mode on Microtensile Bond Strength to Dentin of Two Dual-cured Adhesive Systems in Combination with Resin Luting Cements for Indirect Restorations

Arrais

Giannini

Pashley³

2007

Operative Dentistry

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“…These inadequacies can include incomplete alteration and/or removal of smear layer components due to composition (pH, osmolality) and strength of the acidic primer, and inadequate resin film thickness, requiring multiple layering techniques and changes in the monomer/water ratio, resulting in phase separations. [1][2][3]9,16,[19][20][21][22] Morphological and histological considerations, and other clinical factors causing inadequate bonding at the material/tooth surface interface, include cavity configuration (C-factor) and dentinal tubule/enamel rod orientation, capillary movement of dentinal tubular fluids, physical characteristics of the restorative material (filler loading, volumetric expansion, modulus of elasticity and polymerization contraction), inadequate margin adaptation of the restorative material during insertion, inappropriate barrier protection (dental rubber dam), tooth location, occlusal stresses/tooth flexure and patient age considerations. [23][24][25][26][27][28][29][30][31] In this study, since hybrid layer morphology was not evaluated microscopically, the specific nature of restoration failure (microleakage) for each adhesive system is unknown, although several factors were strongly suspected: inefficiency of acidic monomers in alteration of the smear layer for classic hybrid layer formation, cavity C-factor, orientation of dentinal tubules/enamel rods to the cementoenamel junction, use of acetone-based solvent primer systems and post-treatment stresses caused by polymerization contraction.…”

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confidence: 99%

Effect of Single Step Adhesives on the Marginal Permeability of Class V Resin Composites

Owens¹,

Johnson²

2007

Operative Dentistry

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SUMMARYThis in vitro study evaluated the coronal and apical marginal microleakage of four self-etch, seventh generation adhesive systems.Sixty non-carious human molars were randomly assigned to four groups (n=12). Class V cavities were prepared on the facial or lingual surface of each tooth with coronal margins in enamel and apical margins in cementum (dentin) at the cementoenamel junction. The preparations were restored using four self-etch adhesive systems (iBond, G-Bond, Xeno IV and Clearfil S 3 Bond) and a control (no adhesive), followed by insertion of Gradia Direct microfilled hybrid resin composite. The teeth (specimens) were thermocycled 1,000 cycles, immersed in 1% methylene blue dye for 24 hours and invested in acrylic resin. The specimen blocks were then sectioned longitudinally, with dye penetration (microleakage) examined using a 20x binocular microscope. Coronal and apical margins were scored separately for microleakage using a 0-3 ordinal ranking system. Data were analyzed using non-parametric tests at a p<0.05 level of significance. A comparison of adhesive and control groups at the coronal and apical margins revealed that significant (p<.0001) differences were exhibited. At the coronal margin, Xeno IV revealed significantly less leakage than the other adhesives, with Clearfil S 3 Bond exhibiting significantly less leakage at the apical margin. Groups with no adhesive treatment (control) showed significantly greater leakage at both the coronal and apical margin locations. A Wilcoxon signed rank test showed no significant differences at the coronal compared to the apical margins of the four adhesive systems and control tested.

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“…amine (π acceptor) can react with an acidic group, i.e., phosphoric acid, phosphonic acid, or carboxylic acid group (π donor) in adhesive monomers to form chargetransfer complexes (CT complexes) 22,23) or undesirable quaternary ammonium salt 4) (Fig. 1).…”

Section: Invention Of Cq/tertiary Amine Photoinitiator Systemmentioning

confidence: 99%

A review of the development of radical photopolymerization initiators used for designing light-curing dental adhesives and resin composites

2010

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This paper reviews our recent studies on radical photopolymerization initiators, which are used in the design of light-curing dental adhesives and resin composites, by collating information of related studies from original scientific papers, reviews, and patent literature. The photopolymerization reactivities of acylphosphine oxide (APO) and bisacylphosphine oxide (BAPO) derivatives, and D,L-camphorquinone (CQ)/tertiary amine were investigated, and no significant differences in degree of conversion (DC) were found between BAPO and CQ/amine system (p>0.05). In addition, a novel 7,7-dimethyl-2,3-dioxobicyclo[2.2.1]heptane-1-carbonyldiphenyl phosphine oxide (DOHC-DPPO=CQ-APO) was synthesized and its ultraviolet and visible (UV-VIS) spectral behavior was investigated. CQ-APO possessed two maximum absorption wavelengths (λmax) at 350-500 nm [372 nm (from APO group) and 475 nm (from CQ moiety)], and CQ-APO-containing resins exhibited good photopolymerization reactivity, excellent color tone, relaxed operation time, and high mechanical strength. It was also found that a newly synthesized, water-soluble photoinitiator (APO-Na) improved adhesion to ground dentin.

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Adhesive Bonding of Various Materials to Hard Tooth Tissues: Improvement in Bond Strength to Dentin

Abstract: Used in sequence, solutions of an acidic mordant, a surface-active comonomer, and a coupling agent having methacrylate and aromatic carboxyl groups were used to prepare dentin surfaces in vitro for strong bonding with a composite resin.

Cited by 244 publications

References 11 publications

Effect of Curing Mode on Microtensile Bond Strength to Dentin of Two Dual-cured Adhesive Systems in Combination with Resin Luting Cements for Indirect Restorations

Effect of Curing Mode on Microtensile Bond Strength to Dentin of Two Dual-cured Adhesive Systems in Combination with Resin Luting Cements for Indirect Restorations

Effect of Single Step Adhesives on the Marginal Permeability of Class V Resin Composites

A review of the development of radical photopolymerization initiators used for designing light-curing dental adhesives and resin composites

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