Keywords
Temporary.
How to Cite
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.References
Haselton DR, Diaz- Arnald AM, Dawson DV. Color stability of provisional crown and fixed partial denture resins. J Prosthet Dent. 2005 Jan;93(1):70-5.
Strassler HE, Lowe RA. Chairside resin-based provisional restorative materials for fixed prosthodontics. Compend Contin Educ Dent. 2011 Nov-Dec;32(9):10, 12, 14 passim; quiz 20, 38.
Guler AU, Yilmaz F, Kulunk T, Guler E, Kurt S. Effects of different drinks on stainability of resin composite provisional restorative materials. J Prosthet Dent. 2005 Aug;94(2):118-24.
Perry RD, Magnuson B. Provisional Materials: Key components of interim fixed restorations. Compend Contin Educ Dent. 2012 Jan;33(1):59-60, 62.
Givens EJ Jr, Neiva G, Yaman P, Dennison JB. Marginal adaption and color stability of four provisional materials. J Prosthodont. 2008 Feb;17(2):97-101. doi: 10.1111/j.1532-849X.2007.00256.x.
Rutkünas V, Sabaliauskas V. Effects of different repolishing techniques of colour change of provisional prosthetic materials. Stomatologija. 2009;11(4):105-12.
Rutkunas V, Sabaliauskas V, Mizutani H. Effects of different food colorants and polishing techniques on color stability of provisional prosthetic materials. Dent Mater. 2010 Mar;29(2):167-76.
Reis AF, Giannini M, Lovadino JR, Ambrosano GM. Effects of various finishing systems on the surface roughness and staining susceptibility of packable composite resins. Dent Mater. 2003 Jan;19(1):12-8.
Scotti R, Mascellani SC, Forniti F. The in vitro color stability of acrylic resins for provisional restorations. Int J Prosthodont. 1997 Mar-Apr;10(2):164-8.
Sham ASK, Chu FCS, Chai J, Chow TW. Color stability of provisional prosthodontic materials. J Prosthet Dent. 2004 May;91(5):447-52.
Commission Internationale De L’Eclairage. Technical Report. Colorimetry. 3rd ed. Vienna: CIE Central Bureau; 2004. CIE 15.
Guler AU, Kurt S, Kulunk T. Effects of various finishing procedures on the staining of provisional restorative materials. J Prosthet Dent. 2005 May;93(5):453-8.
Yap AU, Lee HK, Sabapathy R. Release of methacrylic acid from dental composites. Dent Mater. 2000 May;16(3):172-9.
Oréfice RL, Discacciati JAC, Neves AD, Mansur HS, Jansen WC. In situ evaluation of the polymerization kinetics and corresponding evolution of the mechanical properties of dental composites. Polym Test. 2003 Feb;22(1):77-81. doi: 10.1016/S0142-9418(02)00052-1.
Um CM, RuyterI E. Staining of resin-based veneering materials with coffee and tea. Quintessence Int. 1991 May;22(5):377-86.
Prayitno S, Addy M. An in vitro study of factors affecting the development of staining associated with the use of chlorhexidine. J Periodont Res. 1979 Sep;14(5):397-402.
Koishi Y, Tanoue N, Matsumura H, Atsuta M. Colour reproducibility of a photo-activated prosthetic composite with different thicknesses. J Oral Rehabil. 2001 Sep;28(9):799-804.
Johnston WM, Kao EC. Assessment of appearance match by visual observation and clinical colorimetry. J Dent Res. 1989 May;68(5):819-22.
Braden M, Clarke RL. Water absorption characteristics of dental microfine composite filling materials. I. Proprietary materials. Biomaterials. 1984 Nov;5(6):369-72.
Oysaed H, Ruyter IE. Water sorption and ller characteristics of composites for use in posterior teeth. J Dent Res. 1986 Nov;65(11):1315-8.
Akashi A, Matsuya Y, Unemori M, Akamine A. The relationship between water absorption characteristics and the mechanical strength of resin-modified glass-ionomer cements in long-term water storage. Biomaterials. 1999 Sep;20(17):1573-8.
Pascual B, Gurruchaga M, Ginebra MP, Gil FJ, Planell JA, Goñi I. Infuence of the modification of P/L ratio on a new formulation of acrylic bone cement. Biomaterials. 1999 Mar;20(5):465-74.
Arima T, Murata H, Hamada T. Properties of highly cross-linked autopolymerizing reline acrylic resins. J Prosthet Dent. 1995 Jan;73(1):55-9.
Arima T, Murata H, Hamada T. The effects of cross-linking agents on the water sorption and solubility characteristics of denture base resin. J Oral Rehabil. 1996 Jul;23(7):476-80.
The Brazilian Journal of Oral Sciences uses the Creative Commons license (CC), thus preserving the integrity of the articles in an open access environment.
Downloads
