|
|
|
| Untersuchte Arbeit: Seite: 9, Zeilen: 26-37 |
Quelle: Bona et al 2007 Seite(n): 11, Zeilen: right col. 25-45 |
|---|---|
| However, some studies reported that sandblasting the high-strength ceramics may be effective for the initial bond to some luting agents, yet it is not stable, since it presents failure when specimens are stored for extended periods in artificial saliva and submitted to thermocycling in water 36). This may be due to the fact that this treatment creates surface irregularities without micromechanical retention.
Application of a silica coating on ceramics with high crystalline (low silica) content, as In-Ceram, has been used as an experimental surface treatment method. This technology was initially developed for metals to increase bonding to resins. The silica coating systems include the Rocatec and Cojet from ESPE (Germany) and the Silicoater MD from Heraeus Kulzer (Germany). Cojet is an in-office silica coating system that uses 30-μm silica-modified Al2O3 particles (Cojet-Sand) blasted to the surface, followed by the application of a silane agent (ESPE-Sil) 37) 36) M. Kern and V. P. Thompson, J Prosthet Dent, 73, 240-9 (1995). 37) M. Guazzato, M. Albakry, M. V. Swain and J. Ironside, Int J Prosthodont, 15, 339-46 (2002). |
However, some studies reported that sandblasting the In-Ceram ceramics may be effective for the initial bond to some luting agents, yet it is not stable, since it presents failure when specimens are stored for extended periods in artificial saliva and submitted to thermocycling in water.15,23 This may be due to the fact that this treatment creates surface irregularities without micromechanical retention.15
Application of a silica coat on ceramics with high crystalline (low silica) content, as In-Ceram, has been used as an experimental surface treatment method. This technology was initially developed for metals to increase bonding to resins. The silica coating systems include the Rocatec and Cojet from ESPE (Germany) and the Silicoater MD from Heraeus Kulzer (Germany). Cojet is an in-office silica coating system that uses 30-μm silica-modified Al2O3 particles (Cojet-Sand) blasted to the surface, followed by the application of a silane agent (ESPE-Sil).9,12 9. Frankenberger R, Krämer N, Sindel J. Repair strength of etched vs. silica-coated metal-ceramic and all-ceramic restorations. Oper Dent. 2000;25(3):209-15. 11. Guazzato M, Albakry M, Swain MV, Ironside J. Mechanical Properties of In-Ceram Alumina and In-Ceram Zirconia. Int J Prosthodont. 2002;15(4):339-46. 12. Haselton DR, Diaz-Arnold AM, Dunne JT Jr. Shear bond strengths of 2 intraoral porcelain repair systems to porcelain or metal substrates. J Prosthet Dent. 2001;86(5):526-31. 15. Kern M, Thompson VP. Bonding to glass infiltrated alumina ceramic: Adhesive methods and their durability. J Prosthet Dent. 1995;73(3):240-9. 23. Wood DJ, Bubb NL, Millar BJ. Preliminary investigation of a novel system for hydrofluoric acid etch-resistant dental ceramics. J Prosthet Dent. 1997;78(3):275-80. |
Nothing has been marked as a citation. |
|