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200761

Evaluation of Micro-Shear Bond Strength and Surface Roughness of repaired all ceramic restoration with different surface treatments

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Last updated: 23 Jan 2023

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Abstract

Aim of study: This study aimed to evalute ceramic surface roughness and micro shear bond strength of selfadhesiveflowable composite versus traditional flowable composite to all ceramic restoration. Materials   and Methods:Sixty discs of IPS e.max press 8mm in diameter and 2mm thickness were fabricated according to manufacture instruction, based on surface treatment used, specimens were divided into 3 equal group (N=20) GA were treated with hydrofluoric acid etching for 30s, GB sandblasted with (30 μm) silica cojet at 4bar pressure, GC irradiated with ND:YAG laser 1W (pulse energy), Surface roughness was detrmined firstly by profilometry and surface morphology was evaluated by SEM.Two types of flowable composite, self-adhesive I and conventional flowable composite IIwere used to bonding to ceramic surface.Micro-shear bond strength evaluated by UTM with cross head speed 0.5mm/min, One-way ANOVA followed by tukey's test were used to analyze the results. Stereomicroscope was used to examine the fractured parts and determine mode of failure. Results:The highest mean surface roughness value (Ra) was GA (0.253±0.002), and  the lowest was GB (0.249±0.0004) with significant difference. GCII was recorded highest mean micro-shear bond strength value (Mpa) (36.93±11.33), significantly difference with GBII which showed lowest mean value. High incidence of interface adhesive failure demonstrated among the groups. Conclusions:HF is best treatment to rough glass ceramic surface, ND:YAG could accomplish the same efficiency as  HF. Silica Coating of IPS e.max press are not effective, Self-adhesive flowable composite has same bonding ability of two step adhesive.

DOI

10.21608/mjd.2014.200761

Volume

1

Article Issue

1

Related Issue

28316

Issue Date

2014-01-01

Receive Date

2021-10-23

Publish Date

2014-01-01

Page Start

29

Page End

35

Print ISSN

2735-4172

Online ISSN

2812-5479

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https://mjd.journals.ekb.eg/article_200761.html

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https://mjd.journals.ekb.eg/service?article_code=200761

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5

Type

Original Article

Type Code

1,715

Publication Type

Journal

Publication Title

Mansoura Journal of Dentistry

Publication Link

https://mjd.journals.ekb.eg/

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Article

Created At

23 Jan 2023