Influence of airborne-particle abrasion on mechanical properties and bond strength of carbon/epoxy and glass/bis-gma fiber-reinforced resin posts

Soares, Carlos José; Santana, Fernanda Ribeiro; Pereira, J. C.; Araujo, Tatiana Santos; Menezes, Murilo S.

doi:10.1016/s0022-3913(08)60106-7

Cited by 77 publications

(76 citation statements)

References 30 publications

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“…air abrasion or sand blasting), chemical treatment with hydrofluoric acid or hydrogen peroxide at various concentrations and durations, and combinations of mechanical and chemical methods. One study revealed that post surface abrasion produced undesirable surface changes 7) . Chemical surface etching is a convenient way to increase surface roughness of the fiber post, and to subsequently increase the bond strength [8][9][10] .…”

Section: Introductionmentioning

confidence: 99%

Effects of various etching protocols on the flexural properties and surface topography of fiber-reinforced composite dental posts

2017

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The purpose of this study was to evaluate the flexural properties and surface topography of fiber posts surface-treated with various etching protocols. Seventy each of three types of fiber posts: RelyX Fiber Post, Tenax Fiber Trans, and D.T. Light-Post Illusion X-Ro, were randomly divided into 7 groups: no surface treatment, surface treated with hydrofluoric acid (HF) 4.5% for 60 s, HF 4.5% for 120 s, HF 9.6% for 15 s, HF 9.6% for 60 s, HF 9.6% for 120 s, and treated with H2O2 24% for 10 min. The specimens were then subjected to a three-point bending test. Surface topographies of the posts were observed using a SEM. The results indicate that fiber post surface pretreatments had no adverse effects on the flexural properties. However, the fiber posts treated with high HF concentrations or long etching times seemed to have more surface irregularities.

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Section: Introductionmentioning

confidence: 99%

Effects of various etching protocols on the flexural properties and surface topography of fiber-reinforced composite dental posts

2017

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“…62,66,67 In the studies that bonding agent was applied immediately after using H 2 O 2 (without silane coupling agent as a mediator), the TBS mean value was reduced. 69 However, some authors claimed that pretreatments are not necessary before silane application. 70 The results of this study showed that there was no significant difference in the push out bond strength among root regions.…”

Section: Discussionmentioning

confidence: 99%

Effect of Different Surface Treatments on Cone Beam Computed Tomography Image and Push Out Bond Strength of Conventional and Reinforced Fiber Posts.

Wahab

El-Sharkawy

2017

ADJ-for Girls

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Statement of problem:Surface treatment of reinforced fiber posts may not always increase adhesion, especially on post/resin based luting agent interface which is weaker than the dentin/adhesive interface. Relatively little information is available on cone beam computed tomography as non-destructive method suitable for investigating the details of the tooth structure and restoration relationship. Purpose: The purpose of this study was performed to evaluate porosities and gaps at post/ root dentin interface by CBCT and correlate them to push out bond strength of conventional and reinforced glass fiber posts after different surface treatments; hydrofluoric acid, hydrogen peroxide and sandblasting. Materials and Methods: Forty human maxillary central incisors were selected, decoronated to set the remaining tooth length to standardized length of 13mm from the root apex and endodontically treated. The prepared roots were randomly divided into 2 fiber post groups(20 per each). Group 1: white posts DC were selected. Group 2: easy-posts TM were selected. Within each group, posts were further subdivided into 4 subgroups (5 per each) according to surface treatments of the posts. Subgroup A: no treatment, the posts acting as control group. Subgroup B: etching by 9% buffered hydrofluoric acid for 1 minute and bonding. Subgroup C: immersion in 20% H2O2 for 15 minutes and double application of silane for 1 minute per each application. Subgroup D: sandblasting by alumina particles and silainization for 1 minute. Posts were cemented inside roots using Duo-link Universal TM resin cement. Samples were examined by CBCT scans to evaluate voids and porosities. The CBCT scans of intra canal posts were measured in the axial plane. All measurements were made at cervical and middle slices in the buccal, lingual, mesial & distal directions. Each specimen was transversely sectioned perpendicular to the long axis of the root to obtain a section 2 mm ± 0.1 in thickness from the root thirds as measured using a digital caliper. Each section was coded and photographed from apical and coronal surfaces using a stereomicroscope.. Three-way analysis of variance ANOVA test of significance was done comparing variables (post, surface treatment and radicular region) affecting mean values. One way ANOVA followed by Tukey's post-hoc test was performed porosities and gaps at post/ root dentin interface by CBCT and correlate them to push out bond strength of conventional and reinforced glass fiber posts after different surface treatments were confirmed.. AL-AZHAR

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“…After analyzing the data with one-way ANOVA for measuring the shear bond strength, they observed a significant difference in between the two study groups. Soares et al 16 assessed the effect of airborne particle abrasion on the tensile bond strength of carbon/epoxy and glass/ Graph 1: Descriptive value of mean bond strength of study samples in all the groups bis-glycidyl methacrylate fiber-reinforced resin posts. They observed a significant difference on the post-type factor in between various study groups, for flexure strength and stiffness.…”

Section: Discussionmentioning

confidence: 99%

Intricate Estimation and Assessment of Surface Conditioning of Posts to improve Interfacial Adhesion in Post–core Restorations: An in vitro Study

Gupta

Sharma

Pathak

et al. 2017

The Journal of Contemporary Dental Practice

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Introduction: Post and core restorations are routinely used for restoring grossly decayed tooth structures. Various chemical agents are known to affect the interfacial adhesions between the post and the core. Hence, we planned the present study to evaluate the effect of various post-surface treatments on the interfacial strength between the posts and composite materials that are used for building up the core portion. Materials and methods:The present study included assessment of the effect of surface conditioning of posts on the interfacial adhesion in post-core restorations. A total of 80 clear post-tapers were included and were divided broadly into four study groups based on the type of chemical testing protocols used. Various chemical treatments included alkaline potassium permanganate, hydrogen peroxide, and phosphoric acid. The fourth group was the control group. The composite core material was used for building up the core. Testing of the tensile load was done on a universal testing machine. All the results were analyzed by the Statistical Package for the Social Sciences (SPSS) software. Results:The highest bond strength was observed in the study group treated with alkaline potassium permanganate, while the lowest was observed in the control group followed by the hydrogen peroxide group. While comparing the mean bond strength in between various study groups, significant results were obtained.

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Influence of airborne-particle abrasion on mechanical properties and bond strength of carbon/epoxy and glass/bis-gma fiber-reinforced resin posts

Cited by 77 publications

References 30 publications

Effects of various etching protocols on the flexural properties and surface topography of fiber-reinforced composite dental posts

Effects of various etching protocols on the flexural properties and surface topography of fiber-reinforced composite dental posts

Effect of Different Surface Treatments on Cone Beam Computed Tomography Image and Push Out Bond Strength of Conventional and Reinforced Fiber Posts.

Intricate Estimation and Assessment of Surface Conditioning of Posts to improve Interfacial Adhesion in Post–core Restorations: An in vitro Study

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