Effect of etching on the strength of aluminous porcelain jacket crowns

Hussain, Mohd Azmal; Bradford, E. W.; Charlton, G.

doi:10.1038/sj.bdj.4804294

Cited by 18 publications

(13 citation statements)

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“…For the adhesive cementation procedures, the silica-based ceramic surfaces are usually etched by hydrofluoric acid (HF) with or without gritblasting for mechanical interlocking, and then silanated for chemical bonding. However, a major concern exists about the use of HF acid etching due to its hazardous effects on health (Meldrum, 1999) and possible deleterious effects on ceramic strength (Hussain et al, 1979;Hooshmand et al, 2002). Still research continues in introducing effective silane solutions to optimize the chemical bond provided by silanes such that there would be no need for the HF acid etching of the ceramic surfaces.…”

Section: Introductionmentioning

confidence: 98%

Bond strength of a dental leucite-based glass ceramic to a resin cement using different silane coupling agents

Hooshmand

Matinlinna

Keshvad

et al. 2013

Journal of the Mechanical Behavior of Biomedical Materials

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Section: Introductionmentioning

confidence: 98%

Bond strength of a dental leucite-based glass ceramic to a resin cement using different silane coupling agents

Hooshmand

Matinlinna

Keshvad

et al. 2013

Journal of the Mechanical Behavior of Biomedical Materials

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“…[8][9] The number and size of the irregularities created have been associated with etching time, [10][11][12] acid formulation and dilution of the acid solution. 9,13 Empress Esthetic ceramic (Ivoclar Vivadent) is recommended to be conditioned for 60 seconds.…”

Section: Introductionmentioning

confidence: 99%

Surface/Interface Morphology and Bond Strength to Glass Ceramic Etched for Different Periods

Naves

Soares²,

Moraes³

et al. 2010

Operative Dentistry

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Increased etching periods may impair the bond strength to ceramics, while the use of an unfilled resin after silane may improve bond strength. The application of a bonding resin may also provide better infiltration to the irregularities created on etched surfaces, irrespective of the conditioning time. LZ Naves • CJ Soares • RR Moraes LS Gonçalves • MAC Sinhoreti • L Correr-Sobrinho SUMMARYThis study evaluated the influence of etching periods on the surface/interface morphology and bond strength to glass ceramic with or without application of an unfilled resin after silane. Ceramic discs were divided into 12 groups, defined by etching time with 10% hydrofluoric acid: G1/G7 -etching for 10 seconds, G2/G8 -20 seconds; G3/G9 -40 seconds; G4/G10 -60 seconds; G5/G11 -120 seconds and G6/G12-60 + 60 seconds. All the groups were silanated after etching and G7 -G12 received a layer of unfilled resin after silane. Microshear testing using resin cement was performed, with 12 resin cylinders tested per group. The data was submitted to two-way ANOVA and the Student-Newman-Keuls' test (p<0.05). Evaluation of the etching pattern and bonding interfaces was conducted by SEM. The bond strength means (MPa) were: 19.4 ± 3.5, 22.3 ± 5.1, 22.2 ± 3.2, 17.8 ± 2.1, 15.3 ± 3.0 and 14.3 ± 1.8 for G1-G6 and 17.4 ± 4.8, 21.3 ± 2.1, 21.1 ± 2.3, 24.7 ± 5.8, 20.4 ± 2.2 and 18.5 ± 4.6 for G7-G12. Poor etching was detected after 10 seconds of conditioning; whereas deep channels were extensively 421 421 Naves & Others: Bonding to Ceramic Using Unfilled Resin observed on surfaces etched for 120 and 60 + 60 seconds. Unfilled voids underlying the ceramiccement interface were detected when only silane was applied. Full completion of the irregularities on G11 was detected using unfilled resin. When only silane was applied, the 60-second group and those etched for longer periods showed lower bond strengths. When both silane and unfilled resin were applied, all etching periods generally showed similar values. In conclusion, the etching period influenced the surface/interface topography and bond strength to ceramic. The application of unfilled resin was able to infiltrate all unfilled voids beneath the ceramic-cement interface, except on re-etched surfaces.

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“…The discovery that most dental ceramics could be acid etched to create a micromechanical bond to resin has led to the development of acid-etched and bonded ceramic restorations 39 . This concept was extended to include the repair of fractured dental ceramic restorations in the mouth.…”

Section: Introductionmentioning

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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Effect of etching on the strength of aluminous porcelain jacket crowns

Cited by 18 publications

References 0 publications

Bond strength of a dental leucite-based glass ceramic to a resin cement using different silane coupling agents

Bond strength of a dental leucite-based glass ceramic to a resin cement using different silane coupling agents

Surface/Interface Morphology and Bond Strength to Glass Ceramic Etched for Different Periods

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

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