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Effect of calcium hydroxide intracanal dressing on the bond strength of a resin-based endodontic sealer
| Content Provider | Scilit |
|---|---|
| Author | Barbizam, João Vicente Baroni Trope, Martin Teixeira, Érica C. N. Tanomaru-Filho, Mario Teixeira, Fabrício B. |
| Copyright Year | 2008 |
| Description | The aim of this in vitro study was to evaluate the bond strength of Epiphany™ resin-based sealer to dentin walls after placement of calcium hydroxide [Ca(OH)2] dressings. Fifteen extracted single-rooted human teeth were instrumented using 2.5% NaOCl + EDTA as irrigants. The teeth were randomly assigned to 3 groups (n=5), according to the intracanal dressing: G1= Ca(OH)2 + saline; G2= Ca(OH)2 + 2% chlorhexidine gluconate (CHX) gel; and G3= saline (control). After 10 days of storage in 100% humidity at 37ºC, the dressings were removed and the root canals were filled with Epiphany™ sealer. After additional 48 h of storage, the specimens were sectioned transversally into 2-mm-thick discs. Push-out tests were performed (1 mm/min, Instron 4411) and the maximum loads at failure were recorded in MPa. One-way ANOVA and Newman-Keuls tests showed a statistically significant decrease in bond strength when a Ca(OH)2 dressing was used before root canal filling with Epiphany™ (G1= 10.18 ± 1.99 and G2= 9.98 ± 2.97) compared to the control group (13.82 ± 3.9) (p< 0.05). It may be concluded that the use of Ca(OH)2 as an intracanal dressing material affected the adhesion of Epiphany™ to the root canal walls, but even though the values were within the acceptable range found in the literature. |
| Related Links | http://www.scielo.br/pdf/bdj/v19n3/v19n3a09.pdf |
| Ending Page | 227 |
| Page Count | 4 |
| Starting Page | 224 |
| ISSN | 01036440 |
| e-ISSN | 18064760 |
| DOI | 10.1590/s0103-64402008000300009 |
| Journal | Brazilian Dental Journal |
| Issue Number | 3 |
| Volume Number | 19 |
| Language | English |
| Publisher | FapUNIFESP (SciELO) |
| Publisher Date | 2008-01-01 |
| Access Restriction | Open |
| Subject Keyword | Brazilian Dental Journal Microscopic Research Bond Strength Calcium Hydroxide Root Canal Sealers |
| Content Type | Text |
| Resource Type | Article |
| Subject | Dentistry |
