To investigate the effect of sintering temperature on the bond strength, 11 different sintering schedules were performed on 11 groups of specimens. As shown in Table 5, the bond strength was enhanced with the increasing of sintering temperature, and reached to peak value at 960°C. After then, a declination occurred with the continually increasing of sintering temperature. The p-value between each two groups from Group 3.1 to 3.11 was listed in Table 6.