Evaluation of the surface hardness, roughness, gloss and color of composites after different finishing/polishing treatments and thermocycling using a multitechnique approach

Pala K., TEKÇE N., Tuncer S., Serim M. E., Demirci M.

DENTAL MATERIALS JOURNAL, vol.35, no.2, pp.278-289, 2016 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 2
  • Publication Date: 2016
  • Doi Number: 10.4012/dmj.2015-260
  • Journal Name: DENTAL MATERIALS JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.278-289
  • Keywords: AFM, SEM, Microhardness, Roughness, Color stability, Gloss, RESIN COMPOSITES, MECHANICAL-PROPERTIES, POLISHING PROCEDURES, DENTAL COMPOSITES, TEXTURE, FILLER, FORCE, RESTORATIVES, INSTRUMENTS, DEGRADATION
  • Istanbul University Affiliated: Yes

Abstract

The objectives of this study were to evaluate the mechanical and physical properties of resin composites. The materials evaluated were the Clearfil Majesty Posterior, Filtek Z550 and G-aenial Posterior composites. A total of 189 specimens were fabricated for microhardness, roughness, gloss and color tests. The specimens were divided into three finishing and polishing systems: Enhance, OneGloss and Sof-Lex Spiral. Microhardness, roughness, gloss and color were measured after 24 h and after 10,000 thermocycles. Two samples from each group were evaluated using SEM and AFM. G-aenial Posterior exhibited the lowest microhardness values. The mean roughness ranged from 0.37 to 0.61 mu m. The smoothest surfaces were obtained with Sof-Lex Spiral for each material. G-aenial Posterior with Enhance was determined to be the glossiest surfaces. All of the materials exhibited similar AB values ranging between 1.69 and 2.75. Sof-Lex Spiral discs could be used successfully to polish composites.