Influence of Er: Cr: YSGG laser on adhesive strength and microleakage of dentin bonded to resin composite. In-vitro study

Vohra, Fahim; Alghamdi, Abdullah; Aldakkan, Mohammed; Alharthi, Sultan A.; Alturaigi, Osama; Alrabiah, Mohammed; Al‐Aali, Khulud Abdulrahman; Alrahlah, Ali; Naseem, Mustafa; Abduljabbar, Tariq

doi:10.1016/j.pdpdt.2018.08.002

Cited by 51 publications

(12 citation statements)

References 24 publications

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“…Although some previous studies confirmed the results of the present study, 22,[29][30][31] there are a few studies reporting that laser irradiation on unpolymerized adhesive has adverse or no effect on marginal microleakage of composite resin restorations. 22,[32][33][34] Due to the presence of acidic functional monomers, water and solvent in the universal bonding systems, laser irradiation on the unpolymerized adhesive agent can be effective in the formation of the hybrid layer mechanism. Diode laser radiation increases the temperature of the solvent-resin components and the cavity surface.…”

Section: Discussionmentioning

confidence: 99%

Effect of Diode Laser (810 nm) Irradiation on Marginal Microleakage of Multi-mode Adhesive Resins in Class V Composite Restorations

et al. 2019

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Introduction: Some studies have shown that laser irradiation on unpolymerized adhesives can improve composite-dentin adhesion. The aim of the present study was to evaluate the effect of the diode laser (810 nm) on the microleakage of multi-mode adhesive systems at enamel and dentin margins of composite restorations. Methods: Classic class V boxes were prepared on 48 sound premolar teeth and randomly divided into 6 groups (n=16). In the control groups, Scotchbond Universal (SBC), G-Premio (GBC), and Ambar U (AMC) were used by a self-etch mode. In the test groups (SBL, GBL, ABL), the 810 nm diode laser was irradiated (1 W) for 10 seconds before the polymerization of the adhesive. The boxes were restored by the resin composite. After finishing and polishing, the samples were thermocycled (5°C to 55°C) for 1000 cycles and then immersed in 0.1% methylene blue dye (48 hours). Dye penetration through the gingival and occlusal margins was measured by Stereomicroscope. The data were analyzed at the 5% significance level using Kruskal-Wallis and Mann-Whitney U tests. Results: Significant differences were found between the control and test groups (P<0.05). The occlusal margins of the SBL and GBL groups and the cervical margin of the SBL group exhibited the lowest microleakage (P<0.05). The AM control group showed maximum microleakage at cervical and occlusal margins. Conclusion: The irradiation of the 810 nm diode laser on the unpolymerized universal adhesive systems in a self-etch mode caused a significant reduction in enamel and dentin marginal microleakage of composite restorations.

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Section: Discussionmentioning

confidence: 99%

Effect of Diode Laser (810 nm) Irradiation on Marginal Microleakage of Multi-mode Adhesive Resins in Class V Composite Restorations

et al. 2019

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“…These results indicate that ECL application on dentin at 4.5 W and 30 Hz has a similar effect to that of EDTA, that is, removal of the smear layer, improved dentine surface wettability, and opened dentinal tubules without carbonization and melting, making the surface amenable and viable to bonding. 13,26,27 Therefore, based on these observations, the authors do not recommend the clinical use of EDTA in the surface conditioning of lased dentin when bonded to BAC and RMGIC.…”

Section: Discussionmentioning

confidence: 99%

“…10,11 Recently, the use of laser application as a photo bio-modulating agent in treating dental and medical conditions has gained mounting interest. [12][13][14] Laser therapy in the form of erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er,Cr:YSGG laser (ECL)) causes the hydration of water and other organic components from the dentinal tissue, resulting in internal pressure causing ablation and destruction of surface before the melting point is reached. 15 ECL conditioning of dentin increases the concentration of calcium and phosphate ions, which form a more stable compound that is resistant to acid attack.…”

Section: Introductionmentioning

confidence: 99%

Influence of photobio-modulation with an Er,Cr: YSGG laser on dentin adhesion bonded with bioactive and resin-modified glass ionomer cement

Alkhudhairy

Naseem

Ahmad

et al. 2019

Journal of Applied Biomaterials & Functional Materials

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The aim of the present study was to evaluate the shear bond strength (SBS) of bioactive cement (BAC) in comparison to conventional dual cure resin-modified glass ionomer cement (RMGIC) with Er,Cr:YSGG laser (ECL) dentin photo biomodulation. Methods: One hundred and twenty extracted human molars were allocated in eight groups (n = 15) based on surface conditioning and cement type. Specimens of groups 2 and 6 were conditioned with ECL whereas, groups 3 and 7 were treated with ECL + ethylenediamine tetra acetic acid (EDTA). Specimens in groups 4 and 8 were surface conditioned by ECL + EDTA + Tetric-N-Bond, and groups 1 and 5 were considered as control (non-surface treated). Cement buildups were performed on the surface-treated dentin with BAC (groups 1-4) and RMGIC (groups 5-8). A universal testing machine was used to measure the SBS and the mode of failure was evaluated using a stereomicroscope. Statistical analysis was performed using an analysis of variance and Tukey's post hoc test, at a significance level of p < 0.001. Results: The highest SBS values were observed in group 8, ECL + EDTA + Tetric-N-Bond + RMGIC (21.54 ± 3.524 MPa) and the lowest SBS values were displayed by group 1, with no surface treatment and BAC application (11.99 ± 0.821 MPa). The majority of failures were found to be mixed in lased dentin-treated dentin surfaces. BAC when bonded to dentin surfaces conditioned with ECL showed lower SBS in comparison to RMGIC. Conclusion: Conditioning of dentin with ECL and a bonding agent (Tetric-N-bond) improved bond strength scores for BAC and RMGIC. Use of EDTA improved bond strength values when bonded to BAC and RMGIC; however, this improvement was not statistically significant.

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“…Air and water spray from the handpiece was adjusted to a level of 60% air and 80% water for to prevent the enamel surfaces from overheating, the average exposure time was set at 10 s. Laser energy was delivered through a fiberoptic system to a sapphire tip terminal that was 800 μm in diameter (Tip=MZ 8), using gold hand piece. (30,31) Only (Group III specimens) received an additional acid etching step following laser pretreatment.…”

Section: Methodsmentioning

confidence: 99%

The Effect Of ER,Cr.YSGG Laser on the Shear Bond Strength of Composite Resin Bonded to Primary Enamel “An in-vitro study”

Elkady

El-Geleel

Abdelaziz

2020

Egyptian Dental Journal

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Aims and Objectives: The success of composite resin depends mainly on the bond strength of the restoration to the tooth structure. The type of adhesive, the substrate and the surface treatment are the most important factors that affect the bond strength of composite resin restorations. Despite the fact that phosphoric acid is the standard in enamel pretreatment with the best shear bond strength shown with composites in primary teeth. The aprismatic outer enamel layer distinctive to primary teeth could compromise the bond strength and result in a defective superficial etching pattern. Lasers have been studied as surface pretreatment agents with limited applications in primary teeth. Primary enamel pre-conditioning using erbium, chromium:yttrium-scandium-gallium-garnet (Er, Cr:YSGG) yielded controversial results as regards to enhancing enamel bond strength of composite resins to primary enamel. Aim: The aim of the study is to evaluate and compare the shear bond strength of composite resin bonded to enamel which is pretreated using conventional phosphoric acid etchant and Er,Cr:YSGG laser pretreatment. Materials and Methods: Thirty extracted human primary molar teeth were divided into three groups, (N=10) in each (Groups I, II and III). Group I, prepared surface of enamel was etched using 37% phosphoric acid (Scotchbond, 3M). Group II, enamel was surface treated by an Er, Cr: YSGG laser system (Waterlase MD, Biolase Technology Inc., San Clemente, CA, USA) and Group III, a combination of etching and laser treatment was performed. The bonding agent (Scotchbond Multipurpose, 3M) was then applied over the test areas and light cured. Composite resin (Filtek ™ Z250 XT Nano-hybrid Universal restorative, 3M Espe) was later applied and light cured. The samples were finally tested for the shear bond strength. Results: The Mean shear bond strength for Group III was the highest (23.2 ± 0.44MPa) Followed by Group I (17.4 ± 0.66MPa), these values were significantly higher (P < 0.01) than that of Group II (10.1 ± 0.71MPa).

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Influence of Er: Cr: YSGG laser on adhesive strength and microleakage of dentin bonded to resin composite. In-vitro study

Cited by 51 publications

References 24 publications

Effect of Diode Laser (810 nm) Irradiation on Marginal Microleakage of Multi-mode Adhesive Resins in Class V Composite Restorations

Effect of Diode Laser (810 nm) Irradiation on Marginal Microleakage of Multi-mode Adhesive Resins in Class V Composite Restorations

Influence of photobio-modulation with an Er,Cr: YSGG laser on dentin adhesion bonded with bioactive and resin-modified glass ionomer cement

The Effect Of ER,Cr.YSGG Laser on the Shear Bond Strength of Composite Resin Bonded to Primary Enamel “An in-vitro study”

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