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The measure of wear in N ‐vinyl pyrrolidinone (NVP) modifed glass‐ionomer cements
Author(s) -
Yamazaki Tomoko,
Brantley William,
Culbertson Bill,
Seghi Robert,
Schricker Scott
Publication year - 2005
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.552
Subject(s) - glass ionomer cement , materials science , biocompatibility , composite material , ionomer , polymer , metallurgy , copolymer
Glass‐ionomer cements (GICs) are very useful and important as a dental restorative material because of their unique properties, such as adhesion to moist tooth structure and base metals, long‐term fluoride release that inhibits recurrent caries, thermal expansion coefficient that closely matches tooth structure, biocompatibility and low cytotoxicity. Poor mechanical properties, however, have prevented wider clinical use of these materials. Recent advances have shown that the use of NVP as a co‐monomer in the glass‐ionomer polyacid can improve mechanical properties. This work will focus on the synthesis of four NVP modified polyacids and the evaluation of their mechanical properties and wear properties. There is no significant difference between the wear of a commercial glass‐ionomer (Fuji IX) and the four experimental materials. However, the attrition component of wear appears to correlate well with the measured mechanical properties. Copyright © 2005 John Wiley & Sons, Ltd.