| Autor: |
Ural, Çağrı, Burgaz, Yavuz, Saraç, Duygu |
| Předmět: |
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| Zdroj: |
Quintessence International; 2010, Vol. 41 Issue 7, p585-590, 6p, 4 Black and White Photographs, 1 Chart |
| Abstrakt: |
Objective: To compare in vitro the marginal adaptation of crowns manufactured using ceramic restoration fabricating techniques. Method and Materials: Fifty standardized master steel dies simulating molars were produced and divided into five groups, each containing 10 specimens. Test specimens were fabricated with CAD/CAM, heat-press, glass-infiltration, and conventional lost-wax techniques according to manufacturer instructions. Marginal adaptation of the test specimens was measured vertically before and after cementation using SEM. Data were statistically analyzed by one-way ANOVA with Tukey HSD tests (α = .05). Results: Marginal adaptation of ceramic crowns was affected by fabrication technique and cementation process (P < .001). The lowest marginal opening values were obtained with Cerec-3 crowns before and after cementation (P < .001). The highest marginal discrepancy values were obtained with PFM crowns before and after cementation. Conclusion: Marginal adaptation values obtained in the compared systems were within clinically acceptable limits. Cementation causes a significant increase in the vertical marginal discrepancies of the test specimens. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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