The effect of dentine location and tubule orientation on the bond strengths between resin and dentine

Phrukkanon, S; Burrow, MF; Tyas, Martin J.

doi:10.1016/s0300-5712(98)00060-8

Cited by 128 publications

(122 citation statements)

References 17 publications

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“…A careful interpretation of the failure mode is required to prevent inappropriate conclusions about the utility of the microtensile test and the adhesion zone phenomena. Several dentin bond strength studies using microtensile test have reported the modes of failure based on SEM observations 6,53,60,61,65,68,72,79 . These studies based the failure classification on the substrate location where the fracture occurred.…”

Section: Bond Strength and Interfacial Fracture Toughness Of Resin/cementioning

confidence: 99%

Characterizing ceramics and the interfacial adhesion to resin: II- the relationship of surface treatment, bond strength, interfacial toughness and fractography

Bona

2005

J. Appl. Oral Sci.

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he clinical success of resin bonding procedures for indirect ceramic restorations and ceramic repairs depends on the quality and durability of the bond between the ceramic and the resin. The quality of this bond will depend upon the bonding mechanisms that are controlled in part by the surface treatment that promote micromechanical and/or chemical bonding to the substrate. The objective of this review is to correlate interfacial toughness (K A ) with fracture surface morphological parameters of the dental ceramic-resin systems as a function of ceramic surface treatment. This analysis is designed to identify mechanisms that promote adhesion of these ceramic-resin systems and an appropriate bond test method to yield relevant adhesion performance data. Uniterms: Ceramics, Resins, Bond strength, Interfacial toughness, Fracture surface. sucesso clínico de procedimentos adesivos para restaurações cerâmicas e reparo destas restaurações depende da qualidade e durabilidade da adesão entre a cerâmica e a resina. A qualidade desta adesão dependerá dos mecanismos adesivos que são controlados em parte pelo tratamento de superfície que promove uma união micro-mecânica e/ou química com o substrato. O objetivo desta revisão é correlacionar a tenacidade de fratura aparente da interface adesiva (K A ) com os parâmetros morfológicos da superfície de fratura de sistemas cerâmica-resina em função do tratamento da superfície cerâmica. Esta análise é desenvolvida para identificar os mecanismos que promovem a adesão nestes sistemas cerâmica-resina e uma metodologia apropriada para testar a resistência adesiva produzindo resultados relevantes da performa adesiva. Unitermos: Cerâmicas; Resinas; Força de adesão; Tenacidade; Superfície de fratura.

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Section: Bond Strength and Interfacial Fracture Toughness Of Resin/cementioning

confidence: 99%

Characterizing ceramics and the interfacial adhesion to resin: II- the relationship of surface treatment, bond strength, interfacial toughness and fractography

Bona

2005

J. Appl. Oral Sci.

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“…In this study, the orientation of the dentinal tubules on the buccal wall was parallel to the bonded interface. Studies have shown that the bonding strength of the resin is not uniform inside a cavity, and the direction of the dentinal tubules appears to be an important variable regarding the formation of a hybrid layer in dentin 16,21 . The influence of tubule direction can result in higher bonding strength values for bonding performed with tubules oriented parallel to the surface 14 .…”

Section: Discussionmentioning

confidence: 99%

Effect of irradiation mode and filling technique on resin/dentin bonding strength in class I cavities

et al. 2004

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Factors such as light-curing mode, filling technique and cavity configuration may affect the bonding strength to dentin. This study evaluated the effect of irradiation mode and filling technique on resin/dentin bonding strength on the buccal wall of class I cavities in human teeth. Occlusal enamel was removed to expose a flat dentin surface. Occlusal cavities (4 x 3 x 3 mm) were prepared in dentin. The adhesive Single Bond was applied according to the manufacturer's instructions and TPH Spectrum composite resin was placed using the following: oblique incremental, horizontal incremental or bulk filling techniques. The composite resin was light-cured either by continuous (600 mW/cm² for 40 s) or Soft-Start (250 mW/cm² for 10 s + 600 mW/cm² for 30 s) modes. Specimens of the control group were obtained by bonding the material to the flat exposed buccal wall of the cavity (C-factor = 1). The teeth were stored in water at 37 o C for 24 h and prepared for microtensile testing. Bonded beams of approximately 0.8 mm² were obtained from the buccal wall and tested with a tension of 0.5 mm/min. Results were analyzed by two-way ANOVA, Tukey's test and Dunnett's test (α = 0.05). Incremental placement techniques with both irradiation modes produced higher bonding strength values than the bulk technique (p < 0.05). Bonding strength tested in the cavities had lower values than those obtained in flat dentin surfaces (control group) (p < 0.05), except for incremental fillings using stepped irradiation. Bonding strength to the cavity walls depends on the filling technique and on the irradiation mode of composite resins. DESCRIPTORS: Composite resins; Dentin; Dental cements; Dental enamel. RESUMO:Fatores como o modo de ativação, a técnica restauradora e a configuração cavitária podem afetar a resistência adesiva à dentina. Este estudo avaliou os efeitos dos modos de ativação e das técnicas restauradoras na resistência de união compósito/dentina na parede vestibular de restaurações classe I. O esmalte oclusal dos dentes foi removido para expor uma superfície dentinária planificada. Cavidades oclusais (4 x 3 x 3 mm) foram preparadas em dentina. O adesivo Single Bond foi aplicado de acordo com as instruções do fabricante, e o compósito TPH Spectrum, inserido através de três diferentes técnicas: oblíqua incremental, horizontal incremental ou incremento único. O compósito foi ativado utilizando o método contínuo (600 mW/cm² por 40 s) ou "Soft-Start" (250 mW/cm² por 10 s + 600 mW/cm² por 30 s). O grupo controle foi obtido pela união somente à parede vestibular planificada (fator C = 1). Os dentes foram armazenados por 24 h em água a 37 o C e preparados para o ensaio de microtração (0,5 mm/min). Os espécimes apresentaram na secção transversal uma área de união de aproximadamente 0,8 mm². Os resultados foram analisados pela ANOVA (dois fatores), pelos testes de Tukey e Dunnett (α = 0,05). A técnica incremental seguida da ativação com ambas as formas de fotopolimerização produziu maiores valores de resistência de união que a técnica...

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“…A bond between adhesive resin and dentin depends on the penetration of the primer and adhesive resin into the conditioned dentin surface to create micromechanical interlocking between the dentin collagen and resin, forming a hybrid layer [10]. The formation of the hybrid layer may be affected by chemical composition and application mode of adhesive systems [11], differences in the dentin location [12,13] and changes in the microstructural features of dentin associated with the caries process [14]. Several previous studies have shown that the hybrid layer created by etch-rinse systems is significantly thicker than that created by self-etch primers [14][15][16] since they are more acidic and therefore result in a deeper demineralized layer.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, the work of Ogata et al [17] indicated the hybrid layer created on the surfaces parallel to the tubules had significantly greater thickness than those in the perpendicular group. The hybrid layer for specimens bonded perpendicular to the tubule axis appeared to be more uniform than that for specimens bonded parallel to the tubules [13,17], but there was no difference in the thickness of the hybrid layer between the specimens with different tubule orientations.…”

Section: Introductionmentioning

confidence: 99%

SEM evaluation of resin-carious dentin interfaces formed by two dentin adhesive systems

et al. 2008

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Objectives-We investigated the influence of dentin tubule direction and identifiable zone of carious dentin on the microstructure and the thickness of the hybrid-like layer (HL) formed by selfetch and etch-rinse adhesive systems.Methods-An etch-rinse and a self-etching adhesive were bonded to dentin carious zones divided into groups with parallel or perpendicular orientation relative to the dentin tubules at the resin-carious dentin interface (N = 5/variable). Bonds were prepared to each of the four zones of carious dentin apparent after staining with Caries Detector: pink, light pink, transparent and apparently normal Six non-carious third molars were controls. The microstructure and thickness of the HL were determined by SEM.and compared using three-way ANOVA and Tukey's multiple comparisons (p<0.05).Results-Etch-rinse controls gave thicker HLs than self-etching systems; ; orientation did not affect thickness for the self-etch system. Perpendicular orientations gave thicker HLs than parallel for the pink zone bonded with the etch-rinse system. For both adhesives, HL thickness in the pink zone were significantly greater than in light pink for the perpendicular group, but no significant differences were found among other variables. HL microstructure was more granular and rougher for the etch rinse than for the self etching system. Pores and cracks were obvious in the more demineralized zones, Resin tags were shorter and irregular in the transparent zone and often were completely absent in the outer demineralized zones (pink, light pink).Significance-Microstructure of bonded interfaces varies markedly depending on adhesive system, tubule orientation and carious zone.

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The effect of dentine location and tubule orientation on the bond strengths between resin and dentine

Cited by 128 publications

References 17 publications

Characterizing ceramics and the interfacial adhesion to resin: II- the relationship of surface treatment, bond strength, interfacial toughness and fractography

Characterizing ceramics and the interfacial adhesion to resin: II- the relationship of surface treatment, bond strength, interfacial toughness and fractography

Effect of irradiation mode and filling technique on resin/dentin bonding strength in class I cavities

SEM evaluation of resin-carious dentin interfaces formed by two dentin adhesive systems

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