Final endodontic irrigation with 70% ethanol enhanced calciu
Now open: Certificate Course in Management of Covid-19 by Govt. Of Gujarat and PlexusMDKnow more...Now open: Certificate Course in Management of Covid-19 by Govt. Of Gujarat and PlexusMDKnow more...
The purpose of this study was to evaluate the cleanliness of root canal walls and dentinal tubules after attempting to remove the calcium hydroxide dressing with different irrigant solutions and the use of non-activated irrigation (NAI) or passive ultrasonic irrigation (PUI).

After root canal instrumentation, 80 single-rooted teeth were filled with calcium hydroxide mixed with propylene glycol and 0.1% rhodamine B dye and inserted into canals with a Lentulo spiral. The calcium hydroxide dressing was initially removed with 10 mL saline solution and reinstrumentation with the master apical file. Then, the samples were randomly assigned into eight experimental groups (n=10), according to the irrigant solution with or without PUI: 2.5% sodium hypochlorite; 17% EDTA-T; 37% phosphoric acid; or 70% ethanol. A final flush with 5 mL of saline solution was performed.

The percentage of clean root canal walls, and the depth of clean dentinal tubules were measured with images of confocal laser scanning microscopy. The groups were compared using two-way ANOVA test with Bonferroni post hoc test for the depth analysis, and Kruskal-Wallis with Dunn’s post hoc test for the perimeter analysis.

Irrigation with 70% ethanol presented significantly higher percentage of clean root canal walls and higher depth of clean dentinal tubules when compared to irrigation with 2.5% NaOCl and 17% EDTA-T, for both irrigation methods. No differences were observed between NAI or PUI protocols.

70% ethanol enhanced calcium hydroxide removal from the apical root third when compared to 2.5% NaOCl or 17% EDTA-T.

source: https://www.jendodon.com/article/S0099-2399(20)30756-1/fulltext?rss=yes
Like
Comment
Share