About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Manufacturing and Processing of Advanced Ceramic Materials
|
| Presentation Title |
Innovative Electrostatic Painting of 3Y-TZP With Epoxy Powder for Enhanced Bond Shear Strength of Dental Prostheses to Dentin |
| Author(s) |
Carlos Nelson Elias, Alessandro Brito Thomaz, Heraldo Elias Salomão, Celso Souza Resende, Claudinei dos Santos |
| On-Site Speaker (Planned) |
Carlos Nelson Elias |
| Abstract Scope |
Although sandblasting and acid etching improve the adhesion of zirconia to other materials, the bond failure rates of dental prostheses remain high. This study proposes an innovative surface modification technique that involves electrostatically painting zirconia with epoxy powder paint, which possesses antibacterial and antifungal properties, to enhance adhesion to dentin. The samples were divided into four groups: those without surface painting, those painted without surface treatment, those etched with hydrofluoric acid before painting, and those blasted with alumina before painting. The lowest bond strength was observed in untreated zirconia (3.51 MPa). The painted zirconia without surface treatment exhibited the highest bond strength (15.51 MPa). The zirconia etched with HF had a lower shear strength (5.75 MPa) than the blasted (7.76 MPa). Cytotoxicity assays confirmed the biocompatibility of the epoxy-coated zirconia. This novel electrostatic painting technique increased the shear bond strength of zirconia to dentin and is a promising surface treatments. |
