A Clinical Report and a Small Study of Fitness on Procera AllCeram Crown

Matsuda, Tetsuji; Shinya, Akiyoshi; Tomita, Sachiko; Shinya, Akikazu; Mitobe, Chiharu; Hasebe, Shinichi; Hioki, M

doi:10.2186/jjps.48.543

Cited by 4 publications

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“…Nonetheless, when fabricating CAD/CAM restorations using zirconium blocks, it is critical to achieve cost effectiveness, quality control, and improved machining accuracy 10,11) . It is reported that zirconium oxide restorations, due to their high fracture resistance, can be cemented using conventional luting agents 12) .…”

Section: Introductionmentioning

confidence: 99%

Effects of Dental Adhesive Cement and Surface Treatment on Bond Strength and Leakage of Zirconium Oxide Ceramics

et al. 2008

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Section: Introductionmentioning

confidence: 99%

Effects of Dental Adhesive Cement and Surface Treatment on Bond Strength and Leakage of Zirconium Oxide Ceramics

et al. 2008

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“…The introduction of dental CAD/CAM systems has brought about many benefits such as high-quality dental restorations 1,2) , standardized machining accuracy [3][4][5] , streamlined design and fabrication processes 6,7) , and improved laboratory environments [8][9][10][11] . With the development of internet technology, internet-based CAD/CAM systems have gained much attention and attracted much interest lately.…”

Section: Introductionmentioning

confidence: 99%

Machining Accuracy of Crowns by CAD/CAM System Using TCP/IP: Influence of Restorative Material and Scanning Condition

et al. 2007

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The purpose of this study was to determine the optimal condition for fabricating accurate crowns efficiently using an internet-based CAD/CAM system. The influences of three different CAD/CAM restorative materials (titanium, porcelain, and composite resin) and three different step-over scanning distances (0.01 mm, 0.11 mm, and 0.21 mm) were evaluated, and their interactive effects were carefully examined.Several points on the inner and outer surfaces of machined crowns -as well as height -were measured. These measurements were then compared with the original models, from which machining accuracy was obtained. At all measuring points, the inner surface of all crowns was machined larger than the die model, whereas the cervical area of porcelain crown was machined smaller than the crown model. Results of this study revealed that a step-over distance of 0.11 mm was an optimal scanning condition, taking into consideration the interactive effects of scanning time required, data volume, and machining accuracy.

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