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 language | English (US) |
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Pages (from-to) | 137-141 |
Number of pages | 5 |
Journal | Dental Traumatology |
Volume | 6 |
Issue number | 4 |
DOIs | |
State | Published - Aug 1990 |
Keywords
- dental leakage
- dental restoration
- endodontic treatment
- temporary
- zinc oxide‐eugenol cement
ASJC Scopus subject areas
- Oral Surgery