Effect of different surface treatment for the hybrid ceramic on the bonding strength of adhesive resin

ZHU Jia; LIAO Lan

doi:10.19538/j.kq.2017.05.008

Abstract：Objective To study the effect of different surface treatment for hybrid ceramic on bonding strength of adhesive resin.Methods The Vita Enamic block was cut by CAD/CAM.The specimens (36 pieces,size:10 mm ×10 mm × 3 mm) were randomly divided into six groups (6 pieces per group):control group,sandblasting group,etching group,silane group,etching+silane group and sandblasting+silane group.The adhesive area was circle of radius 2 mm,on the center of surface treated.The adhesive resin,EmbracTM,dual cure,was placed on the adhesive area,up to height 4 mm.The bonding strength of each group was detected by the universal material testing machine after 24 h of adhesive resin cure.Results The bonding strength was as follows at the speed of 0.5 mm/min:control group (6.2199 ± 0.9662)MPa,sandblasting group (8.3043 ± 1.2074) MPa,etching group (7.2266 ± 1.1112) MPa,silane group (15.0703 ± 1.1033)MPa,etching+sliane group (9.6446 ± 1.1725)MPa and sandblasting+silane group (13.1765 ± 2.312)MPa.Statistical analysis was performed using AVOVA.There was singnificant difference in the bonding strength between each group,except between etching and sandlasting group,etching and control group (P ＜ 0.05).Conclusion The surface of hybride ceramic treated by sandblasting,etching and silane,alone or combined,can enhance the bonding strength of adhesive resin.The result of sandblasting group is better than etching group,and the silane is the best among them for the bonding strength of adhesive resin with hybrid ceramic.