Surface Roughness of Packable Composite Resins Polished with Various Systems

Borges, A.B.; Marsílio, Ana Lúcia; Pagani, Clóvis; Rodrigues, Jeferson

doi:10.1111/j.1708-8240.2004.tb00450.x

Cited by 37 publications

(38 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although the control groups for each restorative material has the lowest Ra values, the surfaces produced were not perfect (Ra value = 0). This was because the surfaces produced were only as good as the matrix strip itself any surface imperfections present in the matrix will be reproduced in the surface of the specimens [5]. In this present study, as well as in others [17,28,44], mylar matrix strip formed the smoothest surface.…”

Section: Discussionsupporting

confidence: 61%

The Effect of Finishing and Polishing Techniques on the Surface Roughness and the Color of Nanocomposite Resin Restorative Materials

Avşar¹,

Yüzbaşıoğlu²,

Saraç³

2015

Adv Clin Exp Med

View full text Add to dashboard Cite

Background. Rough, poorly polished surfaces contribute to staining, plaque accumulation, gingival irritation and recurrent caries. Finishing and polishing techniques are critical factors contributing to the longevity of the direct composite resin restorations. Objectives. The aim of this in vitro study was to evaluate the effects of finishing and polishing systems on surface roughness of six nanocomposite restorative resins. Material and Methods. Thirty specimens of each restorative material (n = 180) were placed in a teflon mould (6 mm in diameter and 3 mm in depth) and cured with a LED curing unit. Six specimens from each of restorative material were randomly assigned to four groups for finishing and polishing (carbide burs, diamond burs, aluminium oxide discs, silicon rubber polisher) techniques. Mylar strip formed specimens were served as control group. After finishing and polishing procedures surface roughness was evaluated by a profilometer. The data was analyzed by 2-way analysis of variance and the Tukey HSD test (α = 0.05). Results. Significant differences were found between the groups in terms roughness (p < 0.001). The control group and aluminium oxide discs group had the lowest Ra values and were significantly different from other groups (p < 0.001). The roughest surface was obtained with diamond burs followed by silicon rubbers and carbide burs. Overall, the smoothest surfaces were obtained with the use the complete sequence of aluminum oxide discs. Conclusions. In areas that could not be reached by the aluminum oxide discs, the carbide burs produced satisfactory surface smoothness for the nanocomposite restorative materials. Although mylar matrix strip formed surfaces presents lower surface roughness values, recountouring and polishing of resin restorations are often required in clinical situations. Aluminium oxide discs and carbide finishing burs are suitable for finishing and polishing procedures for nanocomposite restorative resins (Adv Clin Exp Med 2015, 24, 5, 881-890).

show abstract

Section: Discussionsupporting

confidence: 61%

The Effect of Finishing and Polishing Techniques on the Surface Roughness and the Color of Nanocomposite Resin Restorative Materials

Avşar¹,

Yüzbaşıoğlu²,

Saraç³

2015

Adv Clin Exp Med

View full text Add to dashboard Cite

show abstract

“…In contrast with this hypothesis, Garoushi et al [39] tested the influence of polishing resin composite materials with similar chemical base as the ones we tested (except for silorane), clearly showing no difference between the polished and unpolished samples. Anyway, and even if literature is not univocal concerning the influence of polishing on staining [39][40][41], we prefer to consider the obtained results as clinically relevant only for the above-mentioned clinical situation. A further study with the same protocol and materials and methods but polished samples will be carried out to elucidate definitively this topic.…”

Section: Discussionmentioning

confidence: 99%

Color stability of recent composite resins

et al. 2016

View full text Add to dashboard Cite

The objective of the study was to evaluate the color stability of 8 recently developed resin composites when exposed to various staining agents. Six disc-shaped specimens made out of 8 resin composite materials were immersed in artificial saliva, coffee, coke, tea, orange juice and red wine. The initial color (T0) of the 288 specimens was assessed by a calibrated reflectance spectrophotometer (SpectroShade, MHT) over a black as well as a white background. All specimens were kept in an incubator (INP-500, Memmert GmbH) at 37°C for 4 weeks. Colorant solutions were changed every 7 days to avoid bacteria or yeast contamination. After 4 weeks of storage in the colorants (T1), spectrophotometric measurements were repeated and DE00 was calculated. When analyzed over a white background, the mean DE00 values varied from 1.5 (Venus Diamond) to 52.4 (Miris 2). When analyzed over a black background, the mean DE00 values varied from 0.8 (Venus Diamond) to 40.0 (ELS). Significant differences were detected when comparing values at T0 and T1 (DE00) for both backgrounds (Anova and Fisher's LSD post hoc test). Resin composite materials do behave in a significantly different way (p value \ 0.01) when exposed to various staining solutions.

show abstract

“…Colour measurement at baseline, after thermocycling, 24 hours (1 day), 72 hours (3 days) and 168 (7 days) 27 of immersion in staining solutions were recorded with a reflection spectrophotometer under the D65 (daylight) illuminant over a white background using CIE L* a* b* parameters .…”

Section: Colour Measurementmentioning

confidence: 99%

A laboratory investigation of colour changes in two contemporary resin composites on exposure to spices

Yew

Berekally²,

Richards

2013

Aust Dent J

View full text Add to dashboard Cite

Background: The aim of this study was to evaluate colour stability upon exposure to spices of a nano-filled and a microhybrid resin composite finished either with Sof-Lex TM discs (SLD) or against plastic strips (PS). Methods: Forty cylindrical specimens of 3 mm thickness were fabricated from Filtek Supreme XT TM (FS) and Gradia Direct X TM (GD). The top surface of each specimen was polished with SLD while the bottom surface was finished against PS. All samples were immersed in staining solutions (0.1% weight turmeric, paprika and tamarind) and distilled water at 37°C. Colour after 0, 24, 72 and 168 hours of immersion was recorded with a reflection spectrophotometer using CIE L*a*b* parameters and the results were statistically analysed with repeated measures of ANOVA and Bonferroni post hoc tests. Results: Among all the staining solutions tested, the highest colour deviation was obtained in the turmeric group. FS finished against PS showed significantly more colour changes compared to specimens polished with SLD, while GD finished against PS were found to be more resistant to colour changes. Conclusions: Within the limitations of this study all the spices tested have the potential to stain resin composites with turmeric causing the most significant discolouration. Micro-hybrid and nano-filled resin composites appeared to respond differently to staining by spices when either finished with PS or polished with SLD.

show abstract

Surface Roughness of Packable Composite Resins Polished with Various Systems

Abstract: The Sof-Lex disks and the Jiffy points produced the smoothest surfaces for the tested resin composites. As a result, they should be considered for clinical use as preferred polishing systems for these resin composites.

Cited by 37 publications

References 15 publications

The Effect of Finishing and Polishing Techniques on the Surface Roughness and the Color of Nanocomposite Resin Restorative Materials

The Effect of Finishing and Polishing Techniques on the Surface Roughness and the Color of Nanocomposite Resin Restorative Materials

Color stability of recent composite resins

A laboratory investigation of colour changes in two contemporary resin composites on exposure to spices

Contact Info

Product

Resources

About