Roughness Analysis on Composite Materials (Microfilled, Nanofilled and Silorane) After Different Finishing and Polishing Procedures

Francesco Pettini1, Massimo Corsalini 1, *, Maria Grazia Savino1, Gianluca Stefanachi 1, Daniela Di Venere1, Carmine Pappalettere2, Giuseppe Monno2, Antonio Boccaccio2, *
1 Dental School - University of Bari, Piazza Giulio Cesare 11 – 70125, Bari, Italy
2 Dental School - University of Bari, Piazza Giulio Cesare 11 – 70125, Bari, Italy

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© Pettini et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the (, which permits unrestricted, noncommercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the School of Dentistry, Ghomabad, Shiraz, Iran; Tel: +98 9175607254; Fax: +98 7116270325; E-mail: Politecnico di Bari, Dipartimento di Meccanica, Matematica e Management (DMMM), Viale Japigia 182, I-70126 Bari, Italy; Tel: +39 0805962829; Fax: +39 0805962777; E-mail: (Antonio Boccaccio)


The finishing and polishing of composite materials affect the restoration lifespan. The market shows a variety of finishing and polishing procedures and the choice among them is conditioned by different factors such as the resulting surface roughness. In the present study, 156 samples were realized with three composite materials, -microfilled, nanofilled and silorane-, and treated with different finishing and polishing procedures. Profilometric analyses were carried out on the samples’ surface, the measured roughness values were submitted to statistical analysis. A complete factorial plan was drawn up and two-way analysis of variance (ANOVA) was carried out to investigate whether the following factors affect the values of roughness: (i) material; (ii) polishing/finishing procedure. Tukey post-hoc test was also conducted to evaluate any statistically significant differences between the material/procedure combinations. The results show that the tested materials do not affect the resulting surface quality but roughness values depend on the finishing/polishing procedure adopted. The procedures that involve: (a) the finishing with medium Sof-Lex discs and (b) the finishing with two tungsten carbide multi-blade milling cutters Q series and UF series are those that allow the lowest values of roughness to be obtained.

Keywords: Composite, finishing, polishing, profilometer,, surface roughness.