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Information Journal Paper

Title

EFFECTS OF DIFFERENT LASERS AND PARTICLE ABRASION ON SURFACE CHARACTERISTICS OF ZIRCONIA CERAMICS

Pages

  233-241

Abstract

 Objective: The aim of this study was to assess the surface of yttrium-stabilized tetragonal ZIRCONIA (Y-TZP) after surface treatment with lasers and airborne-particle abrasion.Materials and Methods: First, 77 samples of presintered ZIRCONIA blocks measuring 10×10×2 mm were made, sintered and polished. Then, they were randomly divided into 11 groups (n=7) and received surface treatments namely, Er: YAG laser irradiation with out-put power of 1.5, 2 and 2.5 W, Nd: YAG laser with output power of 1.5, 2 and 2.5 W, CO2 laser with output power of 3, 4 and 5 W, AL2O3 airborne-particle abrasion (50m) and no treatment (controls). Following treatment, the parameters of surface roughness such as Ra, Rku and Rsk were evaluated using a digital profilometer and surface examination was done by SEM.Results: According to ANOVA and Tukey’s test, the mean surface roughness (Ra) after Nd: YAG laser irradiation at 2 and 2.5 W was significantly higher than other groups. Roughness increased with increasing output power of Nd: YAG and CO2 lasers. Treated surfaces by Er: YAG laser and AIR ABRASION showed similar surface roughness. SEM micro-graphs showed small microcracks in specimens irradiated with Nd: YAG and CO2 lasers.Conclusion: Nd: YAG laser created a rough surface on the ZIRCONIA ceramic with many microcracks; therefore, its use is not recommended. AIR ABRASION method can be used with Er: YAG laser irradiation for the treatment of ZIRCONIA ceramic.

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    APA: Copy

    ARAMI, SAKINEH, HASANI TABATABAEI, MASOUMEH, NAMDAR, SEYEDEH FATEMEH, & CHINIFORUSH, NASIM. (2014). EFFECTS OF DIFFERENT LASERS AND PARTICLE ABRASION ON SURFACE CHARACTERISTICS OF ZIRCONIA CERAMICS. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), 11(2), 233-241. SID. https://sid.ir/paper/297905/en

    Vancouver: Copy

    ARAMI SAKINEH, HASANI TABATABAEI MASOUMEH, NAMDAR SEYEDEH FATEMEH, CHINIFORUSH NASIM. EFFECTS OF DIFFERENT LASERS AND PARTICLE ABRASION ON SURFACE CHARACTERISTICS OF ZIRCONIA CERAMICS. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2014;11(2):233-241. Available from: https://sid.ir/paper/297905/en

    IEEE: Copy

    SAKINEH ARAMI, MASOUMEH HASANI TABATABAEI, SEYEDEH FATEMEH NAMDAR, and NASIM CHINIFORUSH, “EFFECTS OF DIFFERENT LASERS AND PARTICLE ABRASION ON SURFACE CHARACTERISTICS OF ZIRCONIA CERAMICS,” FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), vol. 11, no. 2, pp. 233–241, 2014, [Online]. Available: https://sid.ir/paper/297905/en

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