| 2583 Shear Bond Strength Between Commercially Pure Titanium (Cast and Milled) and a Ceramic | ||
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K.A.N. OLIVIERI, M.P. NEISSER, E.M.V. COSTA, R.P. AVELAR, V. GIANNINI, and R.S. NISHIOKA, Paulista State University, São José dos Campos, Brazil OBJECTIVES: Metalloceramic restorations combine the aesthetic properties of ceramic materials with the high strength of metals. The titanium has excellent biocompatibility, good mechanical properties and low density, and has been recently used for metalloceramic prosthesis. The purpose of this study was to evaluate the shear bond strength between commercially pure titanium, in two different conditions, with a specific ceramic (Titankeramik - VITA) and to compare to control group with gold alloy (Degudent U - Degussa - Hülls) and ceramic (Omega 900 - Vita). METHODS: Thirty specimens were prepared and divided in three groups : CG (control group) - gold alloy+Omega 900 ceramic ; G1 group - milled commercially pure titanium + Titankermik ceramic and G2 group - cast plus milled commercially pure titanium + Titankermik ceramic. The shear bond strength mechanical assay was performed in an universal test machine (Instron 4031) with capacity of 500Kg and a velocity of the 0,5mm/min. All the groups were observed under scanning eletronic microscope. RESULTS: The numerical results, put in tables, were; CG= 40,55MPa (+/- 4,8), G1= 63,56 MPa (+/- 1,73) and G2= 68,16 MPA (+/- 1,19). The statistical analysis (ANOVA and Turkey 5%) showed no significant statistically differences between groups G1 and G2 and the values were larger (significant statiscally) than CG. CONCLUSION: Considering the mechanical test used and the results obtained we can concluded that the commercially pure titanium milled or cast plus milled are alternatives to metalloceramic restorations. Supported by FAPESP # 00/08975-0. | ||
| Seq #264 - Clinical Simulation of Adhesion Properties and Adhesion to Metal/Ceramic Substrates 11:00 AM-12:15 PM, Saturday, 28 June 2003 Svenska Massan Exhibition Hall B | ||
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