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Effect of colorant solutions on the color stability of provisional prosthetic materials
Costa, Ítalo Alisson da Fonsêca; Lima, Emilena Maria Castor Xisto.
  • Costa, Ítalo Alisson da Fonsêca; Bahiana School of Medicine and Public Health. Salvador. BR
  • Lima, Emilena Maria Castor Xisto; Bahiana School of Medicine and Public Health. Faculty of Dentistry of Federal University of Bahia. Salvador. BR
Braz. j. oral sci ; 17: e18153, 2018. tab
Article in English | LILACS, BBO | ID: biblio-963708
ABSTRACT

Aim:

To evaluate the color stability of acrylic and bis-acrylic resins after immersion in 3 staining solutions.

Methods:

Forty-eight samples (10 x 2 mm) of each provisional restorative material (Duralay, Dencrilay, Structur 2 and Protemp 4) were fabricated and distributed into four groups (n = 12) G1 ­ distilled water (control group); G2 ­ a cola flavored soft drink; G3 ­ wine and G4 ­ coffee. The specimens were immersed for seven days at 37°C in the solutions, which were changed every 24 hours. The color of all specimens was measured with a spectrophotometer (VITA Easyshade Advance) before (T0) and after immersion (T1), and the color changes (ΔE) were calculated. Nonparametric Kruskal-Wallis tests were used, followed by Dunn's test with a significance level of 5%.

Results:

For the acrylic resins (Duralay and Dencrilay), the largest color change values were obtained in group G4 ­ coffee, whereas in the bis-acrylic resins (Protemp 4 and Structur 2), the largest color difference was observed in groups G3 ­ wine and G4 ­ coffee. The acrylic resins showed statistically significantly less color change than the bis-acrylic resins.

Conclusions:

The coffee and the wine promoted larger color changes in the provisional prosthetic materials tested in this study. The acrylic resins showed more color stability than the bis-acrylic resins
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Acrylic Resins / Color / Dental Restoration, Temporary Language: English Journal: Braz. j. oral sci Journal subject: Dentistry Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Bahiana School of Medicine and Public Health/BR

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Full text: Available Index: LILACS (Americas) Main subject: Acrylic Resins / Color / Dental Restoration, Temporary Language: English Journal: Braz. j. oral sci Journal subject: Dentistry Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Bahiana School of Medicine and Public Health/BR