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Relative microhardness of glass ionomer restorative materials as an indicator of finishing time.

  • W. W. Brackett(corresponding author)
    ,
  • W. M. Johnston
*Corresponding author for this work
Scholary Output:
Contribution to journal
Article
 Peer-review

Abstract

Microhardness was evaluated as an indicator of appropriate finishing intervals for glass ionomer restorative materials. The hardness of several materials was determined after the first hour of mixing. A material clinically documented to be satisfactorily finished after a delay of 15 minutes attained 29% of its 24-hour hardness during that interval. Samples of the other materials finished on reaching this relative hardness, which differed from the manufacturers' suggested finishing delays, showed no differences in surface characteristics, appearance, or surface roughness compared with specimens finished at the recommended times.

Publication Information

Output type

Scholary Output:
Contribution to journal
Article
 Peer-review

Original language

English (US)

Pages from-to (Number of pages)

Pages 599-602 (4 pages)

Journal (Volume, Issue Number)

Journal of the American Dental Association (1939) (Volume 118, Issue 5)

Publication milestones

  • Published - 01/01/1989

Publication status

Published - 01/01/1989

ISSN

0002-8177

Publication IDs

  • Scopus: 0024671828
  • PubMed: 2715546

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