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Description

Title: 0706 - The Effect of Glazing Procedures on Color Stability of Seven Different Ceramics

Authors:

Ozgun Ozyilmaz, Bezmialem University School of Dentistry
Gulsum Sayin (Presenter)
Medipol University School of Dentistry

Bebek Oguz Ahmet, Medipol University School of Dentistry

Abstract:

Objectives:
The aim of this study was to investigate the changes in color parameters of ceramics before and after glazing using a spectrophotometer.

Methods:
A total of 84 disc-shaped specimens (12 mm in diameter and 2 mm thickness) were fabricated with 7 dental ceramic materials (Ivoclar IPS D Sign, Vita Omega 900, Ceramco III, Vita Mark II, Vita Enamic, GC Cerasmart, Vita Suprinity) according to manufacturers’ instructions (n= 12). Both sides of the ceramic specimens were polished with wet 600-, 1000-, 1500-grit silicon carbide papers. Color value (L*, a*, b*) of each specimen was measured three times with a spectrophotometer (Vita Easyshade, Zahnfabrik) before and after glazing. Color change was calculated with mean L*, a*, b* values and data were analyzed with One-way ANOVA. Confidence level was 95%.

Results:
Statistically significant difference was found among the tested groups (p=0.07). Glaze procedure affected the colors of Ivoclar IPS D Sign (ΔE=2.35±0.45), Vita Omega 900 (ΔE=3.14±1.94) and Ceramco III (ΔE=1.01±0.61) specimens. Color change was less in Ceramco III group than Vita Omega 900 and Ivoclar IPS D Sign groups.

Conclusions:
Within the limitation of the present study, glazing procedures affected the specimens color and this effect was considered clinically noticeable for Ivoclar IPS D Sign and Vita Omega 900 groups.

Disclosure Statement:
The submitter must disclose the names of the organizations with which any author have a relationship, the nature of the relationship, and the clinical or research area involved. The following is submitted: NONE

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