Airborne-particle abrasion and tribochemical silica coating are reference pretreatment methods .
STATEMENT OF PROBLEM With a number of  zirconia ceramic material s currently available for clinical use , an overview of the scientific literature on the adhesion methods and their potential influence is indicated .
PURPOSE The purpose of this systematic review was to classify and analyze the existing methods and material s proposed to improve adhesion to zirconia surfaces .
Adhesive monomers are necessary for chemical bonding .
Surface contamination and aging have negative effects on adhesion to zirconia .
Effect of thermocycling on the bond strength between dual-cured resin cements and zirconium-oxide ceramics.
The present study evaluated the durability of bond strength between zirconia and 3 different resin cements . Thirty stabilized tetragonal zirconium-dioxide blocks were duplicated in dual-curing resin core build-up material specimens . Resin blocks were r and omly luted to zirconium surfaces using 1 ) Clearfil Esthetic Cement ( CLF ) , 2 ) RelyX Unicem Aplicap ( RELX ) , or 3 ) Multilink Automix ( MLA ) . After 24 h , half of the specimens from each of the 3 groups were loaded in tension until fracture ( 0.5 mm/min ) . The remaining half were tested after 6,000 thermal cycles ( 5 to 55 ° C ) . Data were analyzed using 2-way ANOVA and the Tukey test ( α = 0.05 ) . Fractographic analysis was performed using a stereomicroscope . Tensile bond strength values were significantly affected by the luting agent system employed and by thermal aging ( P < 0.001 ) . The highest tensile bond strength values in non-thermal-aged groups were observed for specimens from the RELX and CLF groups . In contrast , in the thermal-aged groups , the highest tensile bond strength values were for the MLA and RELX groups . Moreover , while thermocycling significantly affected bond strengths in the RELX and CLF groups , the mean strength of the MLA group did not significantly change after aging . There was little difference in the distribution of failure modes in any group
Airborne-particle abrasion and tribochemical silica coating are reference pretreatment methods .
STATEMENT OF PROBLEM With a number of  zirconia ceramic material s currently available for clinical use , an overview of the scientific literature on the adhesion methods and their potential influence is indicated .
PURPOSE The purpose of this systematic review was to classify and analyze the existing methods and material s proposed to improve adhesion to zirconia surfaces .
Adhesive monomers are necessary for chemical bonding .
Surface contamination and aging have negative effects on adhesion to zirconia .