Comparison of Wear Resistance of Prefabricated Composite Veneers Versus Ceramic and Enamel

Marco Dederichs, Mina D. Fahmy, Hongseok An, Arndt Guentsch, Stephanie Viebranz, Harald Kuepper

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Purpose: To measure surface roughness before and after wear-tests of two different prefabricated composite veneers and compare them to ceramic veneers and human dental enamel. Materials and Methods: Roughness (Ra-values) of two prefabricated composite veneers (Visalys Veneer Chairside (VIS) and Componeer (COM)) were compared to lithium disilicate Veneers (e.max CAD) and dental enamel (DENT) in vitro. In total n = 45 specimens per material and enamel samples were used for wear-tests. Wear-out tests were conducted by abrasion tests with a toothbrush simulator (22,000 strokes/ 100 g load; approximately equal to two years of cleansing) and erosion tests were carried out using citric acid (pH 1.57). Ra- and Sa-values were detected by white light interferometer before and after wear-tests. Data were analyzed with ANOVA followed by Games-Howell post hoc test and t-test (α = 0.05). Results: At baseline the lowest Ra- and Sa-values were found in VIS (Ra: 0.01 µm; Sa: 0.04 µm) while DENT revealed significantly higher surface roughness (Ra: 0.11 µm, p < 0.05; Sa: 0.30, p = 0.186). COM had significantly higher Ra-values (Ra: 0.10 µm; Sa: 0.22 µm) after abrasion, while e.max CAD was most resistant to the treatments (Ra: 0.01 µm, p < 0.05; Sa: 0.05 µm, p < 0.05). Compared to DENT all veneers were significantly less affected by citric acid (p < 0.001). Conclusions: Prefabricated composite veneers have demonstrated less wear after abrasion and erosion tests compared to DENT, nevertheless, they revealed more wear compared to e.max CAD.

Original languageEnglish (US)
Pages (from-to)711-719
Number of pages9
JournalJournal of Prosthodontics
Volume30
Issue number8
DOIs
StatePublished - Oct 2021
Externally publishedYes

Keywords

  • Ra-value
  • Sa-value
  • Wear-out
  • dental materials
  • esthetics
  • optical profilometer
  • surface roughness
  • white light interferometer

ASJC Scopus subject areas

  • General Dentistry

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