EFFECT OF AGING ON CHEMICAL AND COLOR STABILITY, MARGINAL ACCURACY AND FRACTURE STRENGTH OF HYBRID CERAMIC MATERIALS
Yosra Mohamed El Demery;
Abstract
Summary
New materials development over the years has had to evolve with this dental paradigm shift to ensure that, when utilized intraorally, these materials are able to withstand the functional demands placed upon them. Additionally, the emerging treatment philosophy of minimally invasive dentistry, which aims to preserve as much tooth structure as possible, has further challenged the mechanical limits of restorative dental materials.
With the expanding use of both in-office milling machines and in-lab digital design/manufacturing of prosthesis, material development for these processes has had to progress concurrently. The initial restorations, as aforementioned, were limited to feldspathic porcelain inlays while currently, dental restorations are millable from many different ceramics, resin composites and metal materials. A new “class” of nanoceramic resin composite (NCRC) blocks has very recently been introduced VITA (Enamic). Launched onto the market in 2013, Enamic has been called a “hybrid ceramic” or a polymer-infiltrated-ceramic network (PICN). It is claimed that the dual network of a ceramic and polymer material provides less brittleness, excellent machinability and edge stability, while maintaining excellent esthetics.
New materials development over the years has had to evolve with this dental paradigm shift to ensure that, when utilized intraorally, these materials are able to withstand the functional demands placed upon them. Additionally, the emerging treatment philosophy of minimally invasive dentistry, which aims to preserve as much tooth structure as possible, has further challenged the mechanical limits of restorative dental materials.
With the expanding use of both in-office milling machines and in-lab digital design/manufacturing of prosthesis, material development for these processes has had to progress concurrently. The initial restorations, as aforementioned, were limited to feldspathic porcelain inlays while currently, dental restorations are millable from many different ceramics, resin composites and metal materials. A new “class” of nanoceramic resin composite (NCRC) blocks has very recently been introduced VITA (Enamic). Launched onto the market in 2013, Enamic has been called a “hybrid ceramic” or a polymer-infiltrated-ceramic network (PICN). It is claimed that the dual network of a ceramic and polymer material provides less brittleness, excellent machinability and edge stability, while maintaining excellent esthetics.
Other data
| Title | EFFECT OF AGING ON CHEMICAL AND COLOR STABILITY, MARGINAL ACCURACY AND FRACTURE STRENGTH OF HYBRID CERAMIC MATERIALS | Authors | Yosra Mohamed El Demery | Issue Date | 2018 |
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