Effects of Silanation of Ceramic Crowns on Bond Strength using a New Bioactive Cement
Abstract
Purpose: The purpose of this study is to 1) examine and compare the bond strength of silanated Emax crowns and non-silanated Emax crowns cemented with Ceramir calcium aluminate cement, 2) examine and compare the bond strengths of Ceramir cement and RelyX Unicem cement to Emax crowns 7 days post cementation, and 3) determine whether silanation makes a difference overall in bond strengths of bioactive cements. Methods: Four groups total, each with 19 samples were created for a total of 76 samples. Two of the groups were cemented with Ceramir and the other two groups were cemented 'With RelyX Unicem. Within these 2 groups, half were silanated and the other half were not silanated. All samples were created from Emax blocks of different shades, machine polished, and etched with 9.6% hydrofluoric acid. Uniformity of sample surfaces was confirmed under a microscope. Cement buttons were placed on each sample surface and samples were placed in a buffering solution for 7 days. Samples were then tested using the shear bond strength test and maximum bonds strengths were recorded for each sample in megapascals. Modes of failure were determined using a microscope and failures were placed into one of three categories: 1) adhesive, 2) cohesive, or 3) mixed. Results: A significant difference in bond strengths (a=0.05) was found between the RelyX group and the Ceramir group and the silanated group and non-silanated group. Within the Ceramir group, there was no difference between the silanated group and the non-silanated group. Within the RelyX group, there was a difference between the silanated group and the non-silanated group. Conclusions: The bond between RelyX Unicem and Emax was significantly greater than the bond between Ceramir and Emax. This bond using RelyX was increased when the sample was silanated before cementation. Within the Ceramir groups, there was no change in after the samples were silanated.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 09, 2017
- Accession Number
- AD1128278
Entities
People
- Matthew W. Dekow
Organizations
- Uniformed Services University of the Health Sciences