Color Stability and Surface Roughness of Composite submitted to Different Types and Periods of Finishing/Polishing: Physical Properties of Composites
Renata Costa de Morais, Lucas da Fonseca Roberti Garcia, Diogo Rodrigues Cruvinel
Citation Information :
de Morais RC, Garcia LD, Cruvinel DR. Color Stability and Surface Roughness of Composite submitted to Different Types and Periods of Finishing/Polishing: Physical Properties of Composites. J Contemp Dent Pract 2015; 16 (7):565-570.
The aim of this study was to evaluate the influence of accelerated artificial aging (AAA) on color stability (ΔE) and surface roughness of composite submitted to different systems and periods of finishing/polishing.
Materials and methods
A Teflon matrix was used to fabricate 60 specimens that were separated into four groups, according to the finishing/polishing system: G1: no polishing; G2: abrasive papers; G3: rubber polishing disks; and G4: G2 + G3. Polishing was performed at three different time intervals (n = 6): immediately (Im), 24 hours (24 hours) and 7 days (7 day) after specimen fabrication. Initial color and surface roughness readouts were taken. Afterwards, specimens were submitted to AAA (480 hours) and new readouts were taken.
Results
Results demonstrated that G2 (7 day) presented lower ΔE, statistically different from G1 and G4 (7 days) (two-way analysis of variance (ANOVA), Bonferroni, p < 0.05).
Conclusion
Regarding roughness, there was no difference among groups and periods. Polishing performed with abrasive papers, 7 days after performing the restoration, promoted less color alteration.
Clinical significance
Most of composite restorations are replaced within a period shorter than 5 years due to esthetic failure, and correct finishing and polishing procedures are fundamental to avoid these problems.
How to cite this article
de Morais RC, da Fonseca Roberti Garcia L, Cruvinel DR, Pires-de-Souza FCP. Color Stability and Surface Roughness of Composite submitted to Different Types and Periods of Finishing/Polishing: Physical Properties of Composites. J Contemp Dent Pract 2015;16(7):565-570.
An overview of reasons for the placement and replacement of restorations. Prim Dent Care 2001;8(1):5-11.
Reasons for replacement of restorations in permanent teeth in general dental practice. Int Dent J 2000;50(6):361-366.
Influence of coffee on reflectance and chemistry of resin composite protected by surface sealant. Am J Dent 2007;20(5):299-304.
Influence of food-simulating solutions and surface finish on susceptibility to staining of aesthetic restorative materials. J Dent 2005;33(5):389-398.
Hygroscopic and hydrolytic effects in dental polymer networks. Dent Mater 2006;22(3):211-222.
Relation of dental composite formulations to their degradation and the release of hydrolyzed polymeric-resin-derived products. Crit Rev Oral Biol Med 2001;12(2):136-151.
The influence of onestep polishing systems on the surface roughness and microhardness of nanocomposites. Oper Dent 2008;3(1)3:44-50.
Novel nanoparticles as fillers for an experimental resin-based restorative material. Acta Biomater 2008;4(6):1846-1853.
Microstructural characterization and fracture behavior of a microhybrid and a nanofill composite. Dent Mater 2008;24(9):1281-1288.
Ong JL. Okuno O. The effect of filler loading and morphology on the mechanical properties of contemporary composites. J Prosthet Dent 2002;87(6):642-649.
Changes in surface characteristics of dental resin composites after polishing. Journal of Materials Science. J Mater Sci Mater Med 2005;16(4):347-353.
Effects of various finishing procedures on the staining of provisional restorative materials. J Prosthet Dent 2005;93(5):453-458.
Three composite finishing systems: a multisite in vitro evaluation. J Esthet Dent 1992;4(6):181-185.
Effects of finishing and polishing procedures on the surface texture of resin composites. Dent Mater 1994;10:325-330.
Surface roughness and gloss of dental materials as a function of force and polishing time in vitro. Dent Mater 2006;22(2):146-165.
Standard practice for operating fluorescent light apparatus for UV exposure of nonmetallic materials. Annual Book of ASTM Standards. Pennsylvania: ASTM International West Conshohocken, PA; 2006. p. 646-654.
Color stability of dental ceramics submitted to artificial accelerated aging after repeated firings. J Prosthet Dent 2009;101(1):13-18.
Color stability of dental composite resin materials for crown and bridge veneers. Dent Mater 1987;3(5):246-251.
The efficiency of a new polishing material: nanotechnology liquid polish. Oper Dent 2010;35(3):362-369.
Basting RT. Effectiveness of composite resin polymerization using light-emitting diodes (LEDs) or halogenbased light-curing units. Braz Oral Res 2004;18(3):266-270.
Color stability and hardness in dental composites after accelerated aging. Dent Mater 2003;19(7):612-619.
The effect of softstart polymerization by second generation LEDs on the degree of conversion of resin composite. Oper Dent 2007;32(2):160-165.
Photochemical studies on composite resins cured by visible light. Dent Mater J 1987;6(1):9-27.
Color stability of composites subjected to accelerated aging after curing using either a halogen or light emitting diode source. Braz Dent J 2007;18(2):119-123.
Water sorption, solubility and staining properties of microfilled resins polished by various methods. Dent Mater J 1985;4(1):54-62.
Effects of various finishing systems on the surface roughness and staining susceptibility of packable composite resins. Dent Mater 2003;19(1):12-18.
Effects of acidulated phosphate fluoride gel application on surface roughness, gloss and colour of different type resin composites. J Dent 2011;39(10):700-706.
Surface roughness and staining susceptibility of composite resins after finishing and polishing. J Esthet Restor Dent 2011;23(1):34-43.
Influence of surface roughness on the color of dental-resin composites. J Zhejiang Univ Sci B 2011;12(7):552-562.
Effect of artificial accelerated aging on color stability and surface roughness of indirect composites. Eur J Prosthodont Restor Dent 2008;16(1):10-14.
Effect of different finishing times on surface roughness and maintenance of polish in nanoparticle and microhybrid composite resins. Eur J Esthet Dent 2010;5(3):288-298.
Surface roughness of commercial composites after different polishing protocols: an analysis with atomic force microscopy. Open Dent J 2010;4:191-194.
Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: a review of the literature. Dent Mater 1997;13(4):258-269.