| Literature DB >> 24757351 |
Manesh Lahori1, Rahul Nagrath1, Siddharth Sisodia1, Preety Dagar1.
Abstract
The purpose of this study was to compare the effect of seven different alloy surface treatments on the bond strength of the porcelain-metal interface. Three layers of opaque porcelain and a measured thickness of dentin porcelain were applied to nickel-chromium alloy, A tensile bond strength test was used. The alloy surface treatment that exhibited the highest bond strength was sandblast + surface grinding + sandblast + de-gas, whereas the alloy surface treatment that exhibited the lowest bond strength was sandblast + surface grinding + sandblast + steam cleaning + de-gas. There was a significant difference between the two methods (P < 0.05). It was concluded that de-gassing the alloy prior to porcelain application increased the bond strength and excess surface grinding of the alloy reduced bond strength; steam cleaning the alloy surface prior to de-gassing and porcelain application also significantly reduced the bond strength.Entities:
Keywords: Bond strength; Metal ceramic interface; Sand blasting; Surface treatment
Year: 2013 PMID: 24757351 PMCID: PMC3990771 DOI: 10.1007/s13191-013-0285-3
Source DB: PubMed Journal: J Indian Prosthodont Soc ISSN: 0972-4052