Marginal Discrepancy of Single Implant-Supported Metal Copings Fabricated by Various CAD/CAM and Conventional Techniques Using Different Materials
نویسندگان
چکیده
منابع مشابه
retentiveness of implant-supported metal copings using different luting agents
background: with regard to potential retrievability of cement-retained implant restorations, the retentive strength of the luting agents is critical. the aim of this study was to evaluate the retention values of implant-supported metal copings using different luting agents. materials and methods: twenty iti implant analogs and solid abutments of 5.5-mm height were embedded vertically in autopol...
متن کاملThe Effect of Pattern Materials on the Marginal Gap of Metal Copings Fabricated On Titanium Implant Abutments
Aims: This study was aimed to compare the effect of three different pattern materials on the vertical marginal discrepancy of Nickel-Chromium copings fabricated on titanium implant abutments. Methods: A titanium implant abutment was used to receive 30 Nickel-Chromium copings. The copings were constructed using pattern wax (group 1), acrylic pattern resin (group 2), and lightcured pattern resin ...
متن کاملComparison the Marginal and Internal Fit of Metal Copings Cast from Wax Patterns Fabricated by CAD/CAM and Conventional Wax up Techniques
STATEMENT OF PROBLEM Metal-ceramic crowns are most commonly used as the complete coverage restorations in clinical daily use. Disadvantages of conventional hand-made wax-patterns introduce some alternative ways by means of CAD/CAM technologies. PURPOSE This study compares the marginal and internal fit of copings cast from CAD/CAM and conventional fabricated wax-patterns. MATERIALS AND METHO...
متن کاملMarginal discrepancy and microleakage in crown-copings fabricated by three CAD/CAM systems: An in vitro study
The purpose of this study was to evaluate and compare the microleakage and marginal discrepancy of ceramic crown-copings fabricated by three different CAD/CAM systems. Material and methods: Thirty extracted premolars were prepared for complete allceramic crowns with: total convergence 10-degree, 2 mm occlusal reduction, 4.5 mm height, 1.3 mm circular reduction and chamfer marginal preparation. ...
متن کاملMarginal accuracy of nickel chromium copings fabricated by conventional and accelerated casting procedures, produced with ringless and metal ring investment procedures: A comparative in vitro study.
BACKGROUND Conventional investing and casting techniques are time-consuming and usually requires 2-4 h for completion. Accelerated nonstandard, casting techniques have been reported to achieve similar quality results in significantly less time, namely, in 30-40 min. During casting, it is essential to achieve compensation for the shrinkage of solidifying alloy by investment expansion. The metal ...
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ژورنال
عنوان ژورنال: European Journal of Dentistry
سال: 2019
ISSN: 1305-7456,1305-7464
DOI: 10.1055/s-0039-1700364