Repair bond strength of composite resin to sandblasted and laser irradiated Y‐TZP ceramic surfaces. Issue 3 (24th February 2015)

• Record Type: Journal Article
• Authors: Kirmali, Omer; Barutcigil, Çağatay; Ozarslan, Mehmet Mustafa; Barutcigil, Kubilay; Harorlı, Osman Tolga
• Is Part Of: Scanning. Volume 37:Issue 3(2015)
• Page Start: 186
• Page End: 192
• Publication Date: 2015-02-24
• Subjects: Scanning electron microscopy -- Periodicals; 502.825
• DOI: 10.1002/sca.21197
• Languages: English
• ISSNs: 0161-0457

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Summary</title> <sec id="sca21197-sec-0001" sec-type="section"> <p>This study investigated the effects of different surface treatments on the repair bond strength of yttrium‐stabilized tetragonal zirconia polycrystalline ceramic (Y‐TZP) zirconia to a composite resin. Sixty Y‐TZP zirconia specimens were prepared and randomly divided into six groups (n<italic> </italic>= 10) as follows: Group 1, surface grinding with Cimara grinding bur (control); Group 2, sandblasted with 30 µm silica‐coated alumina particles; Group 3, Nd:YAG laser irradiation; Group 4, Er, Cr:YSGG laser irradiation; Group 5, sandblasted + Nd:YAG laser irradiation; and Group 6, sandblasted + Er, Cr:YSGG laser irradiation. After surface treatments, the Cimara<sup>®</sup> System was selected for the repair method and applied to all specimens. A composite resin was built‐up on each zirconia surface using a cylindrical mold (5 × 3 mm) and incrementally filled. The repair bond strength was measured with a universal test machine. Data were analyzed using a one‐way ANOVA and a Tukey HSD test (p<italic> </italic>= 0.05). Surface topography after treatments were evaluated by a scanning electron microscope (SEM). Shear bond strength mean values ranged from 15.896 to 18.875 MPa. There was a statistically significant difference between group 3 and the control group (p<italic> </italic>< 0.05). Also, a significant increase in bond strength values was noted in group 6 (p<italic> </italic>< 0.05). All surface treatment methods enhanced the repair bond strength of the composite to zirconia; however, there were no significant differences between treatment methods. The results revealed that Nd:YAG laser irradiation along with the combination of sandblasting and Er, Cr:YSGG laser irradiation provided a significant increase in bond strength between the zirconia and composite resin. SCANNING 37:186–192, 2015. © 2015 Wiley Periodicals, Inc.</p> </sec> </abstract>