We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
The Journal of Adhesive Dentistry



Forgotten password?


J Adhes Dent 21 (2019), No. 6     6. Dec. 2019
J Adhes Dent 21 (2019), No. 6  (06.12.2019)

Page 537-544, doi:10.3290/j.jad.a43609, PubMed:31802069

Effect of Root Canal Irrigants on Fiber Post Bonding Using Self-adhesive Composite Cements
Jitumori, Renata Terumi / Bittencourt, Bruna Fortes / Reis, Alessandra / Gomes, João Carlos / Gomes, Giovana Mongruel
Purpose: To evaluate the effect of different irrigation solutions on the bonding of self-adhesive composite cements to the root canal during fiber-post cementation.
Materials and Methods: One hundred twenty single-rooted human teeth were endodontically treated. The post spaces were prepared and specimens were randomly divided into ten groups, according to the combination of the factors: post space irrigation (distilled water, 2.5% NaOCl, 17% EDTA, 26% polyacrylic acid, and 17% EDTA + 2.5% NaOCl) and self-adhesive composite cement (RelyX U200 [3M Oral Care] and Multilink Speed [Ivoclar Vivadent]). The proportion of open dentinal tubules was evaluated by SEM. After fiber post cementation, six slices were obtained from each root (coronal, middle, and apical thirds) for evaluation of push-out bond strength (BS), nanoleakage (NL), and Vickers microhardness (VHN) of the composite cement. Data from open dentinal tubules were submitted to Kruskal-Wallis and Student-Newman-Keuls tests (α = 0.05). Data from BS, NL, and VHN were evaluated by two-way ANOVA and Tukey's test (α = 0.05).
Results: Irrigation with EDTA, polyacrylic acid, and EDTA + NaOCl increased the proportion of open dentinal tubules. For RelyX U200, NaOCl, distilled water and EDTA resulted in the highest BS and VHN values, while for Multi- link Speed, these values were higher only for distilled water. Both composite cements presented lower BS and VHN with polyacrylic acid. NL did not differ between experimental groups (p > 0.05).
Conclusion: For both composite cements tested, distilled water showed better results in push-out and microhardness tests.

Keywords: adhesive cementation, bond strength, endodontic fiber posts, indentation, nanoleakage, self-adhesive luting