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A novel high‐wear‐resistant glass‐ionomer cement for class I and class II restorations
Author(s) -
Zhao Jun,
Weng Yiming,
Xie Dong
Publication year - 2009
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.2008.00589.x
Subject(s) - cement , glass ionomer cement , distilled water , materials science , abrasion (mechanical) , wear resistance , dentistry , attrition , composite material , chemistry , medicine , chromatography
This study reports the results of an evaluation on the in vitro wear of a newly developed experimental light‐cured glass‐ionomer cement composed of the synthesized six‐arm star‐shape poly(acrylic acid) and Fuji II LC glass fillers. The resin composite P‐60, as well as glass‐ionomer cements Fuji II and Fuji II LC, were used for comparison. All specimens were conditioned in distilled water at 37°C for 1 d prior to testing. The experimental cement exhibited statistically the same wear‐resistance to abrasion as P‐60, but the wear‐resistance was 14 times higher for the experimental cement than for Fuji II and Fuji II LC. Furthermore, the experimental cement showed a degree of wear‐resistance to attrition that was 1.4 times higher than both Fuji II and Fuji II LC but six times lower than that of P‐60. Impressively, after 1 month of aging the experimental cement was able to compete with P‐60 in wear‐resistance to attrition, showing a degree of wear depth that was only 1.3 times more than that of P‐60. It appears that this novel cement is a clinically attractive dental restorative that can be potentially used for high‐wear sites such as class I and class II restorations.