The effect of repeated firings on the color of an all-ceramic system with two different veneering porcelain shades

Şahin, Volkan; Uludağ, Bülent; Üşümez, Aslıhan; Özkır, Serhat Emre

doi:10.1016/s0022-3913(08)60044-x

Cited by 35 publications

(43 citation statements)

References 27 publications

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“…It has been reported that multiple firings on ceramics affected their colors, thermal properties, and microcrack densities [36][37][38] . However, little is known about the effect of multiple firings on hardness or elemental composition and the impact of combined effect with acidic agents.…”

Section: Discussionmentioning

confidence: 99%

Degradability of fluorapatite-leucite ceramics in naturally acidic agents

2010

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This study was conducted to evaluate the titratable acidity and effect of naturally acidic agents on the surface microhardness, elemental composition, and surface morphology of fluorapatite-leucite ceramics. One hundred and ten ceramic disks (IPS d.SIGN), 12.0 mm in diameter and 2.0 mm in thickness, were fabricated. Before immersion, the baseline data of Vickers microhardness and elemental composition were recorded. Four groups were immersed in acidic agents (citrate buffer solution, green mango juice, and pineapple juice) and deionized water (control) at 37ºC for 168 hours, whereas one group was immersed in 4% acetic acid at 80ºC for 168 hours. After immersion, specimens were evaluated and data were analyzed using one-way repeated ANOVA and Tukey's test (α=0.05). Microhardness values significantly decreased after immersion (p<0.05). In terms of elemental composition, the weight percentages of silicon, potassium, aluminum, and sodium also decreased after immersion (p<0.05). Results of this study showed that fluorapatite-leucite ceramics were affected by long-term immersion in acidic agents.

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Section: Discussionmentioning

confidence: 99%

Degradability of fluorapatite-leucite ceramics in naturally acidic agents

2010

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“…Although the color of the specimens was influenced by repeated firings, recorded changes in color were clinically acceptable. 87 In another study by the same group, the effect of ceramic thickness and number of firings on the color of two all-ceramic systems was reported. The mean DE* value increased as the thicknesses increased for both types of all-ceramic specimens tested.…”

Section: Color Stabilitymentioning

confidence: 98%

Dental color matching instruments and systems. Review of clinical and research aspects

Chu¹,

Trushkowsky²,

Paravina³

2010

Journal of Dentistry

464

489

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“…The final color of metal‐ceramic restorations is influenced by its metal substructure, which may lead to clinical and laboratory consequences . It is also influenced by the type and thickness of ceramic, the number of firings, and opaque thickness …”

Section: Introductionmentioning

confidence: 99%