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Bond Strength of Resin Composite to Laser Treated Dentin Using Different Adhesive Systems (An in vitro study)

Authors: Zena A. Ahmed --- Makdad N. Chakmakchi
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2015 Volume: 15 Issue: 2 Pages: 405-411
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To evaluate the effect of three different adhesive systems on shear bond strength of composite resin to Er,Cr:YSGG lased dentin. Materials and methods: Twenty one sound third molars were used. Occlusal third of crowns was cut using minitom machine to expose flat dentin surface. Laser irradiation was performed on a circular test area demarcated on each dentin surface. Samples randomly assigned to three groups (n=7) according to the adhesive systems that used which were: total etch adhesive (Adper single bond, 3M ESPE), two step self etch adhesive (Clearfil SE bond, Kurary), and all in one adhesive (Adper easy one, 3M ESPE). Adhesives were applied to the lased dentin surface according to manufacture instruction. Composite rod was applied over the bonded area and cured. Samples were stored in distilled water at 370for 24 hours. The evaluation of shear bond strength was employed by the use of universal testing machine. Results: Statistical analysis of data by analysis of variance (ANOVA) test and Duncanes multiple range test revealed no significant difference in the shear bond strength between the adhesive systems (P≤ 0.05). Conclusions: The results show that all the tested adhesive systems have relatively the same effect on the shear bond strength of composite resin to lased dentin surface.

Keywords

Dentin --- Er --- Cr:YSGG laser --- adhesive system.

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