Effect of number of firings on the color and translucency of ceramic core materials with veneer ceramic of different thicknesses

The Journal of Prosthetic Dentistry
Funda Bayindir, Ozlem Ozbayram

Abstract

Whether masking or translucency should be the goal for achieving an esthetic restoration with ceramic materials is unknown. The purpose of this in vitro study was to examine the effect of the number of firings on the color and translucency of ceramic core material with different thicknesses of veneer ceramic. Three different ceramic systems were used: IPS Empress (IE), IPS e.max Press (IEP), and Turkom Cera (TC). Ninety disk-shaped cores, 10 mm in diameter and 0.8 mm in thickness were prepared using each system (n=30). The specimens were divided into 3 subgroups (n=10) according to the thickness of the veneering ceramic: 0.5, 1.0, and 1.5 mm. The specimens were fired 1, 3, and 5 times, and the color parameters of the specimens were measured. The color measurements were repeated, and the data were statistically evaluated using 2-way and multifactorial analysis of variance, the Duncan test, and the Bonferroni post hoc test. The number of firings affected the translucency parameter and CIELab values. Increased porcelain thickness led to decreased translucency parameter and L* values and increased a* and b* values (P<.05). The IE system was the most translucent (P<.001). The changes with increased firing periods were not statistica...Continue Reading

Citations

Jan 26, 2018·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Alexandra ȘoimCristina Gasparik
May 17, 2019·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Volkan ŞahinBülent C Uludağ
Oct 10, 2019·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Sedanur Turgut
Jan 10, 2018·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Farhad Tabatabaian
Dec 16, 2020·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Dayana Campanelli de MoraisRenata Marques de Melo Marinho
Dec 8, 2020·The Journal of Prosthetic Dentistry·Tuba Yılmaz Savaş, Filiz Aykent

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