Microleakage of IRM® used to restore endodontic access preparations

R. W. Anderson, B. J. Powell, David Henry Pashley

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

Abstract The effect on microleakage of varying the powder‐to‐liquid ratio (P/L) of IRM® used to restore endodontic access preparations was evaluated. Crowns of noncarious, nonrestored extracted human teeth were used in this study. Microleakage was measured using a fluid filtration technique prior to access preparation to obtain control measurements. After access preparation, IRM restorations were placed using P/L of 2, 3, 4, 5, and 6 g/ml, using the manufacturer's recommended dispensing scoop and dropper, and using 2 P/L in a new capsulated IRM delivery system (IRM CAPS). Microleakage measurements were made after various time intervals and after thermal stress. The results indicated that the lower P/L provided the best seals. All groups demonstrated significant microleakage measurements after thermal stress. Significantly greater microleakage measurements were obtained with the P/L of 6 g/ml and the manufacturer's recommended dispensing scoop and dropper. A P/L of 2 g/ml demonstrated less microleakage than the other groups tested.

Original languageEnglish (US)
Pages (from-to)137-141
Number of pages5
JournalDental Traumatology
Volume6
Issue number4
DOIs
StatePublished - Jan 1 1990

Keywords

  • dental leakage
  • dental restoration
  • endodontic treatment
  • temporary
  • zinc oxide‐eugenol cement

ASJC Scopus subject areas

  • Oral Surgery

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