An In Vitro Investigation of a Comparison of Bond Strengths of Composite to Etched and Air‐Abraded Human Enamel Surfaces

Gray, Gordon B.; Carey, G.; Jagger, DC

doi:10.1111/j.1532-849x.2006.00062.x

Cited by 18 publications

(10 citation statements)

References 9 publications

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“…When comparing the two microetched groups, the group of at 5mm has signifi-cantly higher shear bond strength (SBS) than at 10mm distance. This is due to that, as the distance between the surface and the microetcher nozzle decrease, more surface roughness would be generated and thus more micromechanical bonding characteristics and this is in agreement with Gray et al, (22) Both of the acid etched and microetched groups result in shear bond strength that are much higher than the range of the clinically accepted orthodontic force which is between 6-8 MPa (23) .…”

Section: Discussionsupporting

confidence: 87%

Shear and Tensile Strengths of The Bonded Bracket to The Ceramic Surface

Obaidi¹,

Hanna²

2010

RDENTJ

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Aims:To assess the shear and tensile strengths of the bonded bracket to the treated porcelain surface with hydrofluoric acid, and microetcher. Materials and Methods: The sample included 30 specimens of porcelain blocks (6 mm in diameter and 2mm thickness). The sample was grouped into three groups, 10 specimens for each group. The groups were: acid etched, microetched at 5mm distance, and microetched at 10mm distance. Stainless steel brackets (Roth System) were bonded to the treated porcelain surfaces using light cure Orthodontic composite resin. All the groups were thermocycled. The shear and tensile bond strengths of the bonded bracket were measured by using the shear and tensile Universal testing machine. The results were analyzed statistically; that include: Descriptive, ANOVA and Duncan's multiple analysis range testes at p≤ 0.05 significant level. Results: It was revealed that the shear and tensile bond strength values of the bonded brackets to porcelain surface treated with microetcher at 5mm distance was greater significantly than that treated with acid etch, and microetched at 10mm distance. Conclusions: The porcelain surface treated with microetcher is strongly recommended for bonding orthodontic brackets.

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Section: Discussionsupporting

confidence: 87%

Shear and Tensile Strengths of The Bonded Bracket to The Ceramic Surface

Obaidi¹,

Hanna²

2010

RDENTJ

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“…The result was also consistent with other reports that showed no significant difference in bond strength among the different particle sizes of aluminous oxide. 27 However, the mode of failure was not similarly affected by the particle sizes. The tooth surfaces that were treated with 27 µm particle abrasion increased the cohesive failures in dentin.…”

Section: Discussionmentioning

confidence: 95%

The Effects of Tooth Preparation Cleansing Protocols on the Bond Strength of Self-adhesive Resin Luting Cement to Contaminated Dentin

Chaiyabutr¹,

Kois²

2008

Operative Dentistry

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SUMMARYThis in vitro study evaluated the bond strength of a self-adhesive luting cement after using four different techniques to remove surface contamination on dentin. Extracted human molars were flattened to expose the dentin surface and prepared for full crown preparation. Acrylic temporary crowns were fabricated and placed using temporary cement. The specimens were stored at room temperature with 100% relative humidity for seven days. Following removal of the temporary crowns, the specimens were randomly divided into four groups, and excess provisional cement was removed with 1) a hand instrument (excavator), 2) prophy with a mixture of flour pumice and water 3) aluminous oxide abrasion with a particle size of 27 µm at 40 psi and 4) aluminous oxide abrasion with a particle size of 50 µm at 40 psi. The microstructure morphology of the tooth surface was evaluated and residual materials were detected using SEM and EDS analysis of randomly selected specimens. The ceramics were treated with 9.5% hydrofluoric acid-etch and silanized to the prepared dentin prior to cementing with self-adhesive resin cement (RelyX Unicem, 3M ESPE). The shear bond strength was determined at a crosshead speed of 0.5 mm/minute. The results were analyzed with one-way ANOVA, followed by Tukey's test. Particle abrasion treatment of dentin with an aluminous oxide particle provided the highest values of bond strength, while hand instrument excavation was the lowest (p<0.05). Aluminous oxide particle size did not significantly influence the bond strength at 40 psi. The use of low pres- Y Chaiyabutr • JC Kois Clinical RelevanceTooth preparation cleaning protocol surface management with lower pressure aluminous particle abrasion provides a significant improvement in bond strength to dentin.

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“…The target substance must be hard and brittle enough to cause rapid deceleration of the particles, so that their kinetic energy can cause a destructive collision. 29 As a result, contaminants may be removed from the surface, avoiding the formation of a poor-quality bond.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Tooth-preparation Cleansing Protocol on the Bond Strength of Self-adhesive Resin Cement to Dentin Contaminated with a Hemostatic Agent

Chaiyabutr¹,

Kois²

2011

Operative Dentistry

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This study evaluated the effect of tooth-preparation cleansing protocols on the bond strength of a self-adhesive resin cement to dentin contaminated with two different types of hemostatic agents. The occlusal surface of extracted third molars was flattened to expose the dentin surface and prepared for a full crown. Acrylic temporary crowns were fabricated and placed using temporary cement. The specimens were stored at 100% relative humidity for seven days. Following removal of the temporary crowns, the specimens were surface debrided using aluminum oxide abrasion with a particle size of 27 µm at 40 psi. The specimens were randomly assigned to three groups, according to the hemostatic agents: Group I-an agent containing aluminum chloride was applied to the tooth surface; Group II-an agent containing ferric sulfate was applied to the tooth surface and Group III-uncontaminated (control). The contaminated specimens were then further subdivided into three subgroups (A-C; n=12): Group A-tooth surface cleansing with water spray; Group B-tooth surface cleansing with phosphoric acid etch and Group C-tooth Clinical RelevanceAfter contamination with hemostatic agents, tooth-preparation cleansing protocols using either particle abrasion with low-pressure aluminum oxide particles or phosphoric acid-etching restored bond strengths to pre-contamination levels for a selfadhesive resin cement. Laboratory Research ©Operative Dentistry, 2011, 36-1, 18-26 19 Chaiyabutr & Kois: Effect of Tooth Preparation Cleansing Protocol to Dentin Contaminated with a Hemostatic Agent surface cleansing with aluminum oxide abrasion with a particle size of 27 µm at 40 psi. Ceramic blocks were treated with a 9.5% hydrofluoric acid-etch and silanized prior to being cemented with self-adhesive resin luting agent (RelyX Unicem) to the prepared dentin. The shear bond strength was determined at a crosshead speed of 0.5 mm/minute. The data were analyzed with two-way ANOVA, followed by the Duncan multiple range test, to determine any significant differences between the testing groups. The microstructure morphology of the tooth surface was evaluated using SEM analysis. The results revealed that there was a significant difference between the bond strength of the control and the contaminated testing groups (p<0.05). A tooth preparation cleansing protocol using particle abrasion with low-pressure aluminum oxide particles provided a significant improvement in bond strength to contaminated dentin, while rinsing with water spray resulted in the lowest mean bond strength of the self-adhesive resin cement to dentin (p<0.05).

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An In Vitro Investigation of a Comparison of Bond Strengths of Composite to Etched and Air‐Abraded Human Enamel Surfaces

Cited by 18 publications

References 9 publications

Shear and Tensile Strengths of The Bonded Bracket to The Ceramic Surface

Shear and Tensile Strengths of The Bonded Bracket to The Ceramic Surface

The Effects of Tooth Preparation Cleansing Protocols on the Bond Strength of Self-adhesive Resin Luting Cement to Contaminated Dentin

The Effect of Tooth-preparation Cleansing Protocol on the Bond Strength of Self-adhesive Resin Cement to Dentin Contaminated with a Hemostatic Agent

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