Chen Lin,Li Chunlin,Liu Jianguo,Wang Hang,Fan Qin,Li Jieyi.Effect of multiple firing opaque on the bond strength of porcelain-fused-to-metal restoration[J].J Amry Med Univ (J Third Mil Med Univ),2011,33(23):2530-2531.
Chen Lin,Li Chunlin,Liu Jianguo,Wang Hang,Fan Qin,Li Jieyi.Effect of multiple firing opaque on the bond strength of porcelain-fused-to-metal restoration[J].J Amry Med Univ (J Third Mil Med Univ),2011,33(23):2530-2531.DOI:
Objective To investigate the effect of multiple firing opaque on the bond strength of porcelain-fused-to-metal (PFM) restoration. Methods Bond strength of PFM restoration after opaque fired for 1
3
5
7 and 9 times was measured using shear bond strength assay. Results The shear bond strength of PFM restoration decreased significantly with the increase of firing times. Significant differences were found between 1
3 times and 5
7
9 times (P0.05). Conclusion Opaque firing for more than three times can decrease the bond strength of PFM restoration.