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Journal of Dental School, Shahid Beheshti University of Medical Sciences، جلد ۳۴، شماره ۱، صفحات ۳۴-۴۳
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Microtensile Bond Strength of Three Restorative Core Materials with IPS e.max Press Ceramic by Two Resin Cements |
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| چکیده انگلیسی مقاله |
Objective: The aim of this study was to compare the microtensile bond strengths (μ TBS) of three core materials with one lithium disilicate reinforced ceramic using two resin cements. Methods: Three core materials (Nulite F® (Biodental Technologies), Filtek Z250® (3M-ESPE), Prettau-Anterior® (Zirkonzhan, Germany)) were prepared as blocks (10×10×4 mm3) according to the manufacturer’s instructions. Lithium disilicate ceramic blocks were also constructed and bonded to core specimens with two dual curing luting resin cements (Duo-Link® (Schaumburg, IL), Bifix QM® (VOCO, Cuxhaven, Germany)). Micro-bar specimens were prepared and loaded in tension to determine the μ TBS Failure modes were classified by scanning electron microscope (SEM). Data were analysed using two-way ANOVA and Tukey HSD test. Results: The μ TBS varied significantly depending on the core materials and resin cements used (P < 0.05). The μ TBS of Bifix QM was significantly higher than of Duo-Link in all core materials. The μ TBS of zirconia core was significantly higher than of both composite cores with both resin cements. There were no statistically significant differences among Nulite F and Filtek Z250 (P > 0.05). The highest bond strength was obtained between zirconia core and Bifix QM (45.3 ± 6.7 MPa). Conclusion: In vitro μ TBS of glass ceramic blocks bonded to zirconia core material showed higher bond strength values than resin-based core material, regardless of the resin cement type used. |
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| نویسندگان مقاله |
m محمدی بصیر | m mohammadi bassir
dept. of operative dentistry, school of dentistry, shaheduniversity, tehran, iran.
ss رضوی | ss. razavi
dept. of operative dentistry, school of dentistry, babol university of medical sciences, babol, mazandaran, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (Babol university of medical sciences)
mb رضوانی | mb. rezvani
dept. of operative dentistry, school of dentistry, shahed university, tehran, iran.
سازمان اصلی تایید شده: دانشگاه شاهد (Shahed university)
h لباف | h. labbaf
dept. of endodontics, school of dentistry, shahed university, tehran, iran.
سازمان اصلی تایید شده: دانشگاه شاهد (Shahed university)
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| نشانی اینترنتی |
http://jds.sbmu.ac.ir/browse.php?a_code=A-10-521-6&slc_lang=en&sid=en |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
تخصصی |
| نوع مقاله منتشر شده |
پژوهشی |
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