Recent advances in composite CAD/CAM blocks.
Recent advances in composite CAD/CAM blocks.
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复合 CAD/CAM 模块的最新进展。
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
A. Mainjot
中科院分区：
文献类型：
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作者：
A. Mainjot
与手工光固化复合材料相比，复合CAD/ CAM块的引入产生了新的间接修复材料，其性能得到了改善。然而，由于制造商提供的信息不完整，对不同的可用产品存在一些混淆，他们有时将其称为“混合陶瓷”，而最近的分类将其称为“树脂基陶瓷”。当前复合CAD/CAM块的进展与以下方面有关：1)新的微观结构：一边是经典的分散填料微观结构，另一边是树脂渗透的陶瓷网络（聚合物渗透陶瓷网络或PICN）；2)新型聚合方式：高温聚合（HT）或高温/高压聚合（HT/HP）；3)新的基体组成：以UDMA为主组分代替Bis-GMA；4)增加填料含量；5)结构更均匀，缺陷更少。因此，必须区分两类CAD/CAM砌块：一类是分散填料，是高温聚合的，构成了大多数上市产品（例如Lava Ultimate， 3M; Cerasmart， GC; Shofu Block HC, Shofu），另一类是高温/高温聚合的PICN材料（Enamic, Vita）复合CAD/CAM模块的最新进展
THE INTERNATIONAL JOURNAL OF ESTHETIC DENTISTRY The introduction of composite CAD/ CAM blocks has generated new indirect restorative materials with improved properties when compared to artisanal, light-cured composites. There is, however, some confusion about the different available products, which is exacerbated by incomplete information provided by manufacturers, who sometimes refer to them as “hybrid ceramics,” while a recent classification has termed them “resin-matrix ceramics.”1 Advances made in current composite CAD/CAM blocks are associated with: 1) new microstructures: classic dispersed filler microstructure on one side and resin infiltration of a ceramic network (polymer-infiltratedceramic-network or PICN) on the other; 2) new polymerization modes: with high temperature (HT), or with high temperature/high pressure (HT/HP); 3) new matrix composition: UDMA as the main component instead of Bis-GMA; 4) augmented filler content; and 5) more homogeneous structures with fewer flaws. Consequently, two classes of CAD/CAM blocks must be distinguished: those with dispersed fillers, which are HT polymerized and constitute most of the marketed products (eg, Lava Ultimate, 3M; Cerasmart, GC; Shofu Block HC, Shofu), and PICN materials, which are HT/HP polymerized (Enamic, Vita).2 PICN maRecent advances in composite CAD/CAM blocks