Effects of protective resin coating on the surface roughness and color stability of resin-based restorative materials.

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Bagis B., Tüzüner T., Turğut S., Korkmaz F. M., Baygin Ö., Bagis Y. H.

TheScientificWorldJournal, vol.2014, pp.832947, 2014 (Scopus) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 2014
  • Publication Date: 2014
  • Doi Number: 10.1155/2014/832947
  • Journal Name: TheScientificWorldJournal
  • Journal Indexes: Scopus
  • Page Numbers: pp.832947
  • Karadeniz Technical University Affiliated: Yes


The aim of this study was to evaluate the effects of nanofilled protective resin coating (RC) on the surface roughness (Ra) and color stability (Delta E) of resin-based restorative materials (RM) (compomer (C), nanofilled composite (NF), and microhybrid composite (MH)) after being submitted to the ultraviolet aging (UV) method. Thirty-six specimens were prepared (n = 6 for each group). The Ra and (Delta E) values and SEM images were obtained before and after UV. Significant interactions were found among the RM-RC-UV procedures for Ra (P < 0.001). After the specimens were submitted to UV, the Ra values were significantly increased, regardless of the RC procedure (with RC; P < 0.01 for all, without RC; C (P < 0.01), NF (P < 0.001), and MH (P < 0.001)) for each RM. Significant interactions were found between the RM-RC (P < 0.001) procedures for the Delta E values. The Delta E values were increased in each group after applying the RC procedures (P < 0.001). Protective RC usage for RM could result in material-related differences in Ra and Delta E as with used UV method.