Quantification of in vitro produced wear sites on composite resins using contact profilometry and CCD microscopy: A methodological investigation

Natthavoot Koottathape, Hidekazu Takahashi, Werner J. Finger, Masafumi Kanehira, Naohiko Iwasaki, Yujin Aoyagi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Background: Although attritive and abrasive wear of recent composite resins has been substantially reduced, in vitro wear testing with reasonably simulating devices and quantitative determination of resulting wear is still needed. Three - dimensional scanning methods are frequently used for this purpose. The aim of this trial was to compare maximum depth of wear and volume loss of composite samples, evaluated with a contact profilometer and a non-contact CCD camera imaging system, respectively. Method: Twenty-three random composite specimens with wear traces produced in a ball-ondisc sliding device, using poppy seed slurry and PMMA suspension as third-body media, were evaluated with the contact profilometer (TalyScan 150, Taylor Hobson LTD, Leicester, UK) and with the digital CCD microscope (VHX1000, KEYENCE, Osaka, Japan). The target parameters were maximum depth of the wear and volume loss. Results: The individual time of measurement needed with the non-contact CCD method was almost three hours less than that with the contact method. Both, maximum depth of wear and volume loss data, recorded with the two methods were linearly correlated (r 2> 0.97; p< 0.01). Conclusion: The contact scanning method and the non-contact CCD method are equally suitable for determination of maximum depth of wear and volume loss of abraded composite resins.

Original languageEnglish
Pages (from-to)53-56
Number of pages4
JournalJournal of Medical and Dental Sciences
Volume59
Issue number2
Publication statusPublished - 2012 Aug 22

Keywords

  • Ccdimaging
  • Composite resin
  • Profilometry
  • Wear

ASJC Scopus subject areas

  • Dentistry(all)

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