Marginal Design Evaluation for CAM Obtained Zirconia Based Crown Frameworks
Aim: The purpose of the study was to investigate the influence of two factors on the fit of zirconia-based frameworks: the teeth preparation design and the achieving technology. Materials and methods: Sixteen maxillary molar working dies were created from two master dies and divided into four groups. The master dies were fabricated with two different preparation designs: chamfer, and shoulder. Zirconia based crown frameworks were obtained through classical modeling/CAM, and CAD/CAM procedures. For both the Cercon system was used. Marginal and internal fit for all restorations were measured on the dies using cross-sections. Results: The mean gap size varied between81.07 and 98.53 urn for the tested groups. There was no the significant difference in the fit of CAM obtained zirconia-based frameworks, irrespective of the studied technologies or preparation designs. Conclusion: Based on the results of this study, both marginal designs and achieving technologies are within acceptable ranges.
marginal design teeth preparation zirconia crown frameworks achieving technologies
SANDU Liliana TOPALA Florin POROJAN Sorin
Victor Babes University of Medicine and Pharmacy, University School of Dentistry, 9 Revolujiei Blv, Victor Babes University of Medicine andPharmacy, University School of Dentistry, 9 Revolujiei Blv,c
国际会议
2011 International Conference on Advanced Material Research(ICAMR 2011)(2011年先进材料研究国际会议)
重庆
英文
349-353
2011-01-21（万方平台首次上网日期，不代表论文的发表时间）