منابع مشابه
Firing shrinkage of porcelain-resin composites prepared by laser lithography.
Using porcelain and resin-mixed composites as experimental materials, cubic polymerized composites were prepared by the accumulation of thin slices cured by laser scanning. The composites were then fired, and bulk ceramic bodies were made. The optimal firing conditions of polymerized composites and firing shrinkage were investigated. The results showed that cubic ceramic bodies in a form homolo...
متن کامل[Chromatic studies of porcelain veneered crown. Influence of the dentin porcelain on the color of opaque porcelain fused on the metal substructure].
The metals for porcelain fusing used in this study were gold alloys and nickel-chromium alloys. Chromatic characteristics were compared between samples of 0.1, 0.2 and 0.3 mm thickness. The dentin porcelain was fused on the opaque surface. Chromatic analyses were then carried out at each stage of 0.1 mm-incremental reductions of the dentin thickness starting from 0.5 mm. In conclusion, the meta...
متن کاملEffect of luting composite shrinkage and thermal loads on the stress distribution in porcelain laminate veneers.
STATEMENT OF PROBLEM Cyclic thermal fatigue has demonstrated a significant influence of the thicknesses of luting composite and ceramic in crack propensity of porcelain laminates. PURPOSE This study was conducted to define potentially involved parameters for crack development in porcelain laminates bonded to teeth. Finite element modeling was used to evaluate the respective effects of luting ...
متن کاملPorcelain versus composite inlays/onlays: effects of mechanical loads on stress distribution, adhesion, and crown flexure.
This study used 2-D finite element modeling to simulate cuspal flexure and stresses at the surface and tooth-restoration interface of a restored maxillary molar using three restorative materials; the influence of four inlay/onlay preparation configurations on stress distribution within the complex was also investigated. A buccolingual cross-section of an intact molar was digitized and used to c...
متن کاملTreatment of extended anterior crown fractures using Type IIIA bonded porcelain restorations.
Novel-design bonded porcelain restorations, the so-called Type IIIA BPRs, represent a reliable and effective procedure when restoring large parts of the coronal volume and length in the anterior dentition. While traditional treatment approaches involve the removal of large amounts of sound tooth substance (with adverse effects on the pulp, gingivae and crown biomechanics, as well as serious fin...
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ژورنال
عنوان ژورنال: Nihon Hotetsu Shika Gakkai Zasshi
سال: 1972
ISSN: 1883-177X,0389-5386
DOI: 10.2186/jjps.16.407