Today, with the increase in esthetic expectations of patients and the development of digital tech... more Today, with the increase in esthetic expectations of patients and the development of digital technologies, it has become possible to produce new generation materials that are superior to the previous ones and function better. CAD/CAM technology has advanced to a point where it provides dentist with a wide range of restorative options both chair-side and at a traditional dental laboratory. These systems which enable prosthesis making to be possible in a single chair-side time are getting increasingly common since they eliminate laboratory process and traditional impression methods, save time, diminish the risk of cross contamination to minimum and help us make more aesthetical, biocompatible restorations. With the increasing prevalence of restorations produced using CAD/CAM systems, new materials have started to be introduced rapidly. Ceramics are the most commonly used materials in CAD/CAM systems because of the fact that they are the best materials that can imitate the natural tooth. The purpose of this article is to introduce the current ceramic materials used in CAD-CAM systems.
Objective: The aim of the present study was to evaluate the influence of ceramic and composite th... more Objective: The aim of the present study was to evaluate the influence of ceramic and composite thickness on polymerization hardness of five different dual-cure resin cements. Materials and Methods: A total of 100 disc-shaped spacer, 10-mm in diameter and five varying thicknesses (1.0mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm) were fabricated from ceramic and composite materials. Dual-cure resin cement specimens with 8-mm diameter were prepared using metal brass mold and activated by light beneath the composite and ceramic disc shaped spacers. A total of 100 specimens of five different dual-cure resins (RelyX, Variolink, NX3, Calibra, Panavia F2.0) were prepared. Knoop hardness of each dual-cure resin cement was measured at five different point using a microhardness device with a 500 gm load, after 1 hr, 1 day, and 1 week polymerization. All data were statistically evaluated using one-way ANOVA. Results: Multivariate analysis of variance revealed significant differences in hardness of specimens ...
Today, with the increase in esthetic expectations of patients and the development of digital tech... more Today, with the increase in esthetic expectations of patients and the development of digital technologies, it has become possible to produce new generation materials that are superior to the previous ones and function better. CAD/CAM technology has advanced to a point where it provides dentist with a wide range of restorative options both chair-side and at a traditional dental laboratory. These systems which enable prosthesis making to be possible in a single chair-side time are getting increasingly common since they eliminate laboratory process and traditional impression methods, save time, diminish the risk of cross contamination to minimum and help us make more aesthetical, biocompatible restorations. With the increasing prevalence of restorations produced using CAD/CAM systems, new materials have started to be introduced rapidly. Ceramics are the most commonly used materials in CAD/CAM systems because of the fact that they are the best materials that can imitate the natural tooth. The purpose of this article is to introduce the current ceramic materials used in CAD-CAM systems.
Objective: The aim of the present study was to evaluate the influence of ceramic and composite th... more Objective: The aim of the present study was to evaluate the influence of ceramic and composite thickness on polymerization hardness of five different dual-cure resin cements. Materials and Methods: A total of 100 disc-shaped spacer, 10-mm in diameter and five varying thicknesses (1.0mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm) were fabricated from ceramic and composite materials. Dual-cure resin cement specimens with 8-mm diameter were prepared using metal brass mold and activated by light beneath the composite and ceramic disc shaped spacers. A total of 100 specimens of five different dual-cure resins (RelyX, Variolink, NX3, Calibra, Panavia F2.0) were prepared. Knoop hardness of each dual-cure resin cement was measured at five different point using a microhardness device with a 500 gm load, after 1 hr, 1 day, and 1 week polymerization. All data were statistically evaluated using one-way ANOVA. Results: Multivariate analysis of variance revealed significant differences in hardness of specimens ...
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