Effect of Erbium-yttrium, scandium, gallium and garnet (ErYSGG) laser on the bond strength of lithium disilicate ceramics | Al-Rifaiy | Pakistan Journal of Medical Sciences
 
مبل راحتی صندلی مدیریتی صندلی اداری میز اداری وبلاگدهی گن لاغری بازی اندروید تبلیغات کلیکی آموزش زبان انگلیسی پاراگلایدر مارکت اندروید تور آهنگ محسن چاوشی مسیح و آرش پروتز سینه پروتز باسن پروتز لب میز تلویزیون

Effect of Erbium-yttrium, scandium, gallium and garnet (ErYSGG) laser on the bond strength of lithium disilicate ceramics

Mohammed Qasim Al-Rifaiy

Abstract


Objectives: To assess the bond strength of LD ceramics with resin composite material and surface conditioning using Er:YSGG laser and HF acid.

Methods: Thirty LD ceramic (Emax, Ivoclar vivadent) discs were prepared using hot pressing technique and treated with hydroflouric acid (Group-1-HF acid) (9%) (n=10) and Er- yttrium, scandium, gallium and garnet laser (Group-2-ER-YSGG laser) (Waterlase iPlus, 10 Hz and power of 0.5 W, pulse duration of 230 μs) (n=10). Ten specimens were left untreated to be included as controls (Group-3-Control). All the specimens were treated with Adper Single Bond adhesive (3MESPE , St. Paul , MN , USA). Multicore buildups (3mmx3mm) were performed using a rubber mold on the ceramic surfaces and cured using LED light-curing unit for 140 sec. All specimens were tested using shear bond test and failure modes were assessed with a stereomicroscope and scanning electron microscope. Data was analysed using ANOVA and Tukey Kramer multiple comparisons test.

Results: The maximum and minimum shear bond strength values were achieved in HF Acid specimens (Group-1) (28.15±4.72 MPa) and control specimens (13.47± 3.14 MPa) respectively. Specimens treated with HF acid showed significantly higher bond strength in comparison to laser treated and control specimens (p<0.01). Laser treated specimens had significantly higher bond strength as compared to controls (p<0.01).

Conclusions: Hydrofluoric (HF) acid treatment showed significantly better outcomes than YSGG laser surface treatment.

doi: https://doi.org/10.12669/pjms.341.13916

How to cite this:Al-Rifaiy MQ. Effect of Erbium-yttrium, scandium, gallium and garnet (ErYSGG) laser on the bond strength of lithium disilicate ceramics. Pak J Med Sci. 2018;34(1):32-36.   doi: https://doi.org/10.12669/pjms.341.13916

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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