Uzun, Ismail HakkiMalkoc, Meral ArslanPolat, Nilufer TulinOgreten, Ayse Tuba2024-08-042024-08-0420160169-42431568-5616https://doi.org/10.1080/01694243.2016.1168503https://hdl.handle.net/11616/97275The aim of this study was to evaluate the shear bond strength (SBS) of a new repairing material including zirconia primer to zirconia and veneering porcelain after various surface treatments. A total of 60 specimens (30 zirconia-Zr and 30 feldspathic porcelain-Feld) were prepared and divided into 6 groups (n=10). Two surface preparations (air abrasion-AA and Erbium Yag (Er-YAG) Laser-Las) were applied to the specimens. Zr and Feld specimens treated with a grinding bur according to manufacturer advice, were used as control (C). Repair material (Cimara Zircon, VOCO, Germany) was applied to the specimens 2mm in height. The SBS was measured in a universal testing machine at 1mm/min crosshead speed. The SBS data (MPa) were analyzed using two-way ANOVA and Tukey HSD multiple comparison tests (=0.05). Significant effects of the material type (p=0.005) and the surface treatment strategy (p=0.000) were found. Interaction terms were also significant (p=0.000). While the Zr-C (68,4MPa) showed the highest SBS (p<0.05), Zr-Las (16,4MPa) had the lowest SBS (p<0.05). The highest SBS value was obtained when both zirconia and veneering porcelain were treated with a grinding bur without any additional surface treatment.eninfo:eu-repo/semantics/closedAccessZirconiafeldspathic porcelainsurface preparationshear bond strengthrepair materialArticle30161741175310.1080/01694243.2016.11685032-s2.0-84963940152Q2WOS:000373945200004Q3