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Information Journal Paper

Title

Bond Strength of Porcelain to Milled Sintered and Casting Base Metal Alloys

Pages

  21-26

Abstract

 Statement of the Problem: The success of Metal-ceramic restorations depends on the Bond strength between porcelain and alloy. These restorations can be fabricated through different Casting and computer-aided design/computer-aided manufacturing (CAD/CAM) techniques. Purpose: This study aimed to compare the Bond strength of porcelain to milled sintered (Sintron) and Casting (Co-Cr and Ni-Cr) base metal alloys. Materials and Method: In this in vitro experimental study, 63 rectangular bars (25×3×0. 5 mm) were fabricated of three base metal alloys: Casting Ni-Cr, Casting Co-Cr, and milled sintered Co-Cr alloy. Feldspathic porcelain (3×8 mm) was applied at the center of each bar with 1. 5 mm thickness. The specimens were thermally aged. Bond strength was evaluated through three-point flexural test. Failure mode was evaluated by optical and electron micro-scope. Data were analyzed with one-way ANOVA and Tukey's post hoc test (α =0. 05). Results: The mean flexural Bond strength of porcelain to milled sintered Co-Cr alloy (24. 58± 5. 16 MPa) was significantly higher than that of Casting Ni-Cr (21. 13± 6. 34 MPa) (p= 0. 03) and Casting Co-Cr (20. 98± 4. 84 MPa) alloys (p= 0. 04). However, the two Casting alloys were not significantly different in this regard (p= 0. 93). The failure mode in all specimens was of cohesive type. Conclusion: Bond strength of CAD/CAM milled sintered Co-Cr alloy was better than that of the conventional Casting alloys and could serve as a suitable alternative to those alloys.

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    Cite

    APA: Copy

    MOHAMMADI, ZAHRA, MAHABADI, MEYSAM, Tabbakhian, Gholamreza, & Talaakoob, Mahmud. (2021). Bond Strength of Porcelain to Milled Sintered and Casting Base Metal Alloys. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), 22(1), 21-26. SID. https://sid.ir/paper/982704/en

    Vancouver: Copy

    MOHAMMADI ZAHRA, MAHABADI MEYSAM, Tabbakhian Gholamreza, Talaakoob Mahmud. Bond Strength of Porcelain to Milled Sintered and Casting Base Metal Alloys. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2021;22(1):21-26. Available from: https://sid.ir/paper/982704/en

    IEEE: Copy

    ZAHRA MOHAMMADI, MEYSAM MAHABADI, Gholamreza Tabbakhian, and Mahmud Talaakoob, “Bond Strength of Porcelain to Milled Sintered and Casting Base Metal Alloys,” JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), vol. 22, no. 1, pp. 21–26, 2021, [Online]. Available: https://sid.ir/paper/982704/en

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