Mechanical properties and internal fit of 4 CAD | 合法醫療器材資訊網

由AGoujat著作·2018·被引用107次—Results:Themeanflexuralstrengthofthetestedblocksrangedfrom148.7±9.5MPa(VitaEnamic)to216.5±28.3MPa(Cerasmart).Themean ...

Statement of problem: Recent polymer-based computer-assisted design and computer-assisted manufacturing (CAD-CAM) materials have been commercialized for inlay restorations, a polymer-infiltrated ceramic-network (PICN) and composite resin nanoceramics. Little independent evidence regarding their mechanical properties exists. Internal adaptation is an important factor for the clinical success and longevity of a restoration, and data concerning this parameter for inlays made with these blocks are scarce.

Purpose: The purpose of this in vitro study was to evaluate and compare the mechanical properties (flexural strength, flexural modulus, Vickers hardness, fracture toughness) and the internal adaptation of these recent polymer-based blocks with a lithium disilicate glass-ceramic block.

Material and methods: The materials tested in this study were a PICN material (Vita Enamic), 2 composi...