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Original Research

Open Access

Wear of resin-modified glass ionomers : an in vitro study

  • Masato Futatsuki1,*,
  • Miyuki Nozawa1
  • Tetsuro Ogata1
  • Minoru Nakata1

1Department of Pediatric Dentistry, Kyushu University Faculty of Dentistry, Japan

DOI: 10.17796/jcpd.25.4.w05l3m2316557740 Vol.25,Issue 4,October 2001 pp.297-301

Published: 01 October 2001

*Corresponding Author(s): Masato Futatsuki E-mail: futam@dent.kyushu-u.ac.jp

Abstract

The purpose of this study was to evaluate the wear resistance and clinical applicability of resin-modified

glass ionomer cements as restorative or fissure-sealing materials. The in vitro wear of resin-modified

glass ionomers was compared to conventional glass ionomers, a resin-based sealant, and a composite

resin. A three-body wear test (enamel block - polymethylmethacrylate powder - experimental

dental material) was performed by 20,000 cycles with a load of 4kgf/cm2. The depth of wear of the

experimental materials was measured and calculated using a computerized laser surface scanner. The

glass ionomers generally showed more wear than the resin-based sealant and the composite resin, but

there was no difference in wear between resin-modified and conventional glass ionomers. Type III

ionomers (used for sealant) showed lower wear resistance than type II ionomers (used for restoration).


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Masato Futatsuki,Miyuki Nozawa,Tetsuro Ogata,Minoru Nakata. Wear of resin-modified glass ionomers : an in vitro study. Journal of Clinical Pediatric Dentistry. 2001. 25(4);297-301.

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