a Record control number 000312478900004

a ISSN 0022-3913

a Original cataloging agency NEU GrandLibrary

a Language code of text/sound track or separate title eng

a Classification number WU 29

b Item number .E34 2012

a Personal name Yilmaz, Burak.

h Medium Electronic Document

a Title Effect Of Alloy Recasting On The Color Of Opaque Porcelain Applied On Different Dental Alloy Systems.

c Statement of responsibility, etc Burak Yilmaz, Tuncer B. Ozcelik, William M. Johnston, Sevcan Kurtulmus-Yilmaz and Andrea M. Company.

b Name of publisher, distributor, etc Mosby-Elsevier,

c Date of publication, distribution, etc 2012.

a Place of publication, distribution, etc New York :

a Summary, etc Statement of problem. The effect of different proportions of recast dental alloys on the color of overlying opaque porcelain (OP) is unknown. Purpose. The purpose of this study was to compare the color of OP applied on 2 different proportions (50% and 100%) of recast alloys with the color of commercially available shade tabs of OP. Material and methods. Six different metal alloy systems (2 base: Metalloy CC, Cr-Co [B-MCC]; Heraenium NA, Ni-Cr [B-HNA]; 3 noble: Cerapall 2, Pd-Au [N-CP2]; Triumph, Pd-Ag [N-T]; V-Deltaloy, Au-Pd [N-VD]; and 1 high-noble: V-Gnathos Plus, Au-Pt [HN-GP]) were selected for the fabrication of disk-shaped specimens (10 mm in diameter, 1 mm in thickness). Each alloy was divided into 2 subgroups: 50% new alloy with 50% recast alloy (n=3) and 100% recast alloy (n=3). OP (B1) was applied (0.1 mm) to all specimens. The color coordinates (L*, a*, b*) of each specimen and the corresponding commercially available OP shade tab (control) were measured with a spectroradiometer, and color differences between specimens and control group were calculated. Data were statistically analyzed (2-way ANOVA, Ryan-Einot-Gabriel-Welsch multiple range test, alpha=.05). Results. For each alloy, Delta L*( Lcontrol-Lrecastalloy) values for the 2 subgroups were not statistically different from each other. The Delta a* and Delta b* of different proportions of N-CP2, B-HNA, N-VD, and HN-GP were not statistically different within the alloys. However, the a* values of 100% recast N-T and B-MCC were significantly closer to the a* values of the control group, and the b* values of 50% recast B-MCC were significantly closer to the b* values of the control group (P<. 05). Delta Econtrol-recast alloy values for different proportions of alloys were not statistically different. However, color differences did not meet the criterion of clinical acceptability (Delta E=3.46). Conclusions. According to the results of this study, the different proportions (50% and 100%) of recast alloys used have similar effects on the color of OP. Differences between the final color of OP on the recast alloys used and the color of OP shade guide tabs did not meet the criterion of clinical acceptability considered in this study. (J Prosthet Dent 2012;108:362-369)

a Topical term or geographic name as entry element Dentistry

a Topical term or geographic name as entry element Near East University Article

a Topical term or geographic name as entry element Yakın Doğu Üniversitesi Makale

a Topical term or geographic name as entry element Oral Surgery & Medicine

a Topical term or geographic name as entry element Metal-Ceramic Restorations

a Main entry heading Journal Of Prosthetic Dentistry

g Relationship information DEC 2012, Vol 108 Issue 6, p362-369

x International Standard Serial Number 00223913