Objectives期刊摘中英翻譯

Objectives: The aim was to evaluate the effect of thermal cycling on the metal–ceramic bond strength. Methods: Four different noblemetal alloys were used. Specimens for the crack initiation test according to ISO 9693 were prepared to assess metal–ceramic bond strength (n = 10). The metal substrates were either air-borne particle abraded or polished prior to veneering. Bond strength was measured after veneering or after 6000 thermal cycles. With one alloy in addition long-term thermal cycling with 15,000 and 50,000 cycles was carried out. Statistical

analysis was performed with one-way ANOVA followed by a post hoc Bonferroni test. Results: Polished metal substrates showed a significantly lower bond strength compared to the air-borne particle abraded substrates. Treatment with 6000 thermal cycles did not significantly reduce the bond strength. Long-term thermal cycling resulted in an exponential decrease of bond strength for both polished and air-borne particle abraded specimens. Conclusions: Air-borne particle abrasion significantly increases metal–ceramic bond strength. Thermal cycling of metal–ceramic composites results in an exponential decrease of bond strength. The crack initiation test is a sensitive method for assessing the metal–ceramic bond strength.

1 Answer

Rating
  • ?
    Lv 4
    1 decade ago
    Favorite Answer

    目标是:这样做的目的是评价热循环对金属陶瓷粘结强度。方法:四种不同noblemetal合金使用。标本的裂纹萌生测试按照ISO 9693准备评估金属陶瓷粘结强度( 10例) 。金属基板被空气传播颗粒磨损或抛光之前饰面。粘结强度测定饰面或之后在6000热循环。一合金除长期热循环与15,000和50,000周期进行。统计

    分析采用单因素方差分析之后,事后Bonferroni测试。结果:抛光金属基板显示粘结强度显着降低,而空气粒子磨损基板。治疗6000热循环没有显着降低粘结强度。长期热循环导致指数减少了粘结强度为抛光和空气传播颗粒磨损标本。结论:空气颗粒磨损显着提高金属陶瓷粘结强度。热循环的金属陶瓷复合材料的结果指数减少了粘结强度。在裂纹萌生测试是一个敏感的方法进行评估的金属陶瓷粘结强度。

Still have questions? Get your answers by asking now.