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- Title
Effect of nano-silica coating on bonding strength of zirconia ceramics to dentin.
- Authors
ZHANG Xian-fang; ZHENG Hu; HAN Dong-wei
- Abstract
PURPOSE: To investigate the effect of silica coating by sol-gel process on bonding strength of zirconia ceramics to dentin. METHODS: Blocks of sintered zirconia ceramics were cut and randomly divided into 4 groups, 16 slices in each group. Each group was subject to one of the 4 kinds of surface treatment (control group, sandblasting, sandblasting +silicone, sandblasting + silica coating + silicone) and then bonded to dentin with resin cement. After preservation in 37°C distilled water for 24 hours, the shear bonding strength of these specimens was tested and the data was analyzed with SAS6.12 software package for analysis of variance. The surface modality of the ceramics was observed under scanning electron microscopy (SEM). RESULTS: The group of sandblasting+ silica coating + silicone attained the highest shear bonding strength, which was significantly different from the other groups (P=0.000); There was no significant difference between the sandblasting and sandblasting + silicone group (P=0.827), which was significantly different from the control group (P=0.001). CONCLUSION: Silica coating by sol-gel process, coupled with silicone, can significantly increase the bonding strength of zirconia ceramics to dentin.
- Subjects
SILICA; DENTAL ceramics; ZIRCONIUM oxide; DENTIN; SILICONES; SCANNING electron microscopy
- Publication
Shanghai Journal of Stomatology, 2009, Vol 18, Issue 2, p198
- ISSN
1006-7248
- Publication type
Article