COMPARISON OF MARGINAL FIT IN ZIRCONIA-BASED ALL-CERAMIC FRAMEWORKS (CERCON) MADE BY TWO APPROACHES (DIRECT AND WAX-UP SCANNING)

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GOLSHAH NASER; HAJIMIRAGHA HABIB; NOKAR SAEED; ZEIGHAMI SOMAYEH

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Journal: Journal of Dental Medicine Year:2012 | Volume:25 | Issue:1 (70) Page(s): 69-76

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Title

COMPARISON OF MARGINAL FIT IN ZIRCONIA-BASED ALL-CERAMIC FRAMEWORKS (CERCON) MADE BY TWO APPROACHES (DIRECT AND WAX-UP SCANNING)

Author(s)

GOLSHAH NASER | HAJIMIRAGHA HABIB | NOKAR SAEED | ZEIGHAMI SOMAYEH | Issue Writer Certificate

Keywords

ALL CERAMICQ3

CAMQ2

CAD/CAMQ2

MARGINAL FITQ2

ZIRCONIAQ2

Abstract

Background and Aims: Since a large marginal opening allows more plaque accumulation, gingival sulcular fluid flow and bone loss, microleakage, recurrent caries and periodontal disease, MARGINAL FIT is of great importance in fixed restorations. The aim of this study was to compare the MARGINAL FIT of zirconium-based ALL CERAMIC (Cercon) frameworks, made by two different approaches (Direct and Wax-up scanning).Materials and Methods: An abutment analog, with 5.5 mm width and height, was selected as an experimental model. Twenty ALL CERAMIC cores were made for this model (10 specimens per each group). In the first group (Direct), experimental models were scanned directly using Computer Aided Design/Computer Aided Manufacturing (CAD/CAM). The core was then designed with the aid of a computer and machined. In the second group (Wax-up or CAM) a wax-up pattern was made on the experimental model and then scanned and milled from Cercon blocks. The marginal discrepancy of each specimen was recorded using a stereomicroscope (SZX9, Olympus, Japan) and digital CAMera (Mode TK, C1380E, JVC, Japan) and then measured by Adobe Photoshop CS software. The data were analyzed using T-test.Results: Mean marginal discrepancy of Direct group (85.2±3.95 mm) was significantly less than that of Wax-up group (120.2±6.91 mm).Conclusion: Improved MARGINAL FIT of ZIRCONIA ceramics was found with the direct model scanning compared with that of Wax-up scanning using CAD/CAM.

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APA: Copy

GOLSHAH, NASER, HAJIMIRAGHA, HABIB, NOKAR, SAEED, & ZEIGHAMI, SOMAYEH. (2012). COMPARISON OF MARGINAL FIT IN ZIRCONIA-BASED ALL-CERAMIC FRAMEWORKS (CERCON) MADE BY TWO APPROACHES (DIRECT AND WAX-UP SCANNING). JOURNAL OF DENTAL MEDICINE, 25(1 (70)), 69-76. SID. https://sid.ir/paper/25564/en

Vancouver: Copy

GOLSHAH NASER, HAJIMIRAGHA HABIB, NOKAR SAEED, ZEIGHAMI SOMAYEH. COMPARISON OF MARGINAL FIT IN ZIRCONIA-BASED ALL-CERAMIC FRAMEWORKS (CERCON) MADE BY TWO APPROACHES (DIRECT AND WAX-UP SCANNING). JOURNAL OF DENTAL MEDICINE[Internet]. 2012;25(1 (70)):69-76. Available from: https://sid.ir/paper/25564/en

IEEE: Copy

NASER GOLSHAH, HABIB HAJIMIRAGHA, SAEED NOKAR, and SOMAYEH ZEIGHAMI, “COMPARISON OF MARGINAL FIT IN ZIRCONIA-BASED ALL-CERAMIC FRAMEWORKS (CERCON) MADE BY TWO APPROACHES (DIRECT AND WAX-UP SCANNING),” JOURNAL OF DENTAL MEDICINE, vol. 25, no. 1 (70), pp. 69–76, 2012, [Online]. Available: https://sid.ir/paper/25564/en

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