Color matching of full ceramic versus metal-ceramic crowns - a spectrophotometric study
نویسندگان
چکیده
منابع مشابه
Contact fracture of full-ceramic crowns subjected to occlusal loads.
The mechanisms contributing to failure of full dental ceramic crowns under occlusal loads were studied using a unique optical approach. Model specimens comprising triple-layered crowns (veneer, core and substrate) were developed with both flat and curved occlusal surfaces and then subjected to simulated quasi-static occlusal loading using a spherical indenter. Deformation within the specimens d...
متن کاملInternal fit of two all-ceramic systems and metal-ceramic crowns
OBJECTIVES The aim of this study was to investigate the internal fit (IF) of glass-infiltrated alumina (ICA--In-Ceram Alumina), yttria-stabilized tetragonal zirconia polycrystals (Y-TZP--IPS e.max ZirCAD), and metal-ceramic (MC--Ni-Cr alloy) crowns. MATERIAL AND METHODS Sixty standardized resin-tooth replicas of a maxillary first molar were produced for crown placement and divided into 3 grou...
متن کاملA two-year clinical study of metal-ceramic and metal-polymer crowns.
The purpose of this study was to compare full metal crowns with two different types of veneering material - ceramics and polymer after a two-year period in a function. The aim was to evaluate the changes of occlusal relief, marginal adaptation, break of material, changes of shape and color and gingival status. One hundred and two crowns were examined in 34 patients immediately after cementation...
متن کاملComparison of convergence angle of prepared teeth for full veneer metal ceramic crowns.
OBJECTIVE To compare clinically practiced convergence angle values of tooth preparation with recommended values, and also the effect of tooth position and operator experience on convergence angle. STUDY DESIGN Analytical study. PLACE AND DURATION OF STUDY The study was carried out at the Dental clinic, The Aga Khan University Hospital, Karachi, from January to June 2007. METHODOLOGY A min...
متن کاملLongevity of metal-ceramic crowns cemented with self-adhesive resin cement: a prospective clinical study
Resin cements are often used for single crown cementation due to their physical properties. Self-adhesive resin cements gained widespread due to their simplified technique compared to regular resin cement. However, there is lacking clinical evidence about the long-term behavior of this material. The aim of this prospective clinical trial was to assess the survival rates of metal-ceramic crowns ...
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ژورنال
عنوان ژورنال: Medicine and Pharmacy Reports
سال: 2019
ISSN: 2668-0572,2602-0807
DOI: 10.15386/mpr-1330