The Shear Bond Strength of Lithium Disilicate Glass

The purpose of this experimental study was to determine and compare the shear bond strength of pressed lithium disilicate ceramic bonded with titanium disc by using four cements; Multilink implant® (MI), RelyX unicem® (RU), Panavia F2® (PF) and Superbond C&B® (SB). Sixty pressed lithium disilicate discs were luted to 60 titanium discs with 1 of 4 luting cements. The bonded materials were subjected for shear bond strength testing by a universal testing machine. Comparison of mean shear bond strength was evaluated by one-way ANOVA and t-test analysis. Shear bond strength of each cement ranked from the highest to the lowest are following; MI was 58.27±2.05 MPa, RU was 45.81±1.88 MPa, SB was 39.55±2.29 MPa, and PF was 39.42±2.11 MPa. Significant differences were observed statistically among groups (p<0.001), except SB and PF.

Dr. Thanatcha Wanichthanom completed her DDS degree with honor from Faculty of Chiang Mai University in 2006. She then pursued her further study and graduated with the Master of Science degree in Esthetic Restorative and Implant Dentistry from Chulalongkorn University in 2013. Her interest are especially in implantology and esthetic dentistry.