Journal
AUSTRALIAN ENDODONTIC JOURNAL
Volume 48, Issue 2, Pages 266-273Publisher
WILEY
DOI: 10.1111/aej.12556
Keywords
dentinal tubules; epoxy sealer; irrigation; sealer penetration; smear layer
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Funding
- European Regional Development Fund [POIG.02.01.00-12-023/08]
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The study showed that irrigation protocols ended with chlorhexidine resulted in deeper sealer penetration compared to alcohol.
The aim was to assess the impact of irrigation protocols ended with ethanol or chlorhexidine on AH Plus penetration into dentinal tubules. 45 root canals were prepared to ISO 40/04, divided into three groups and irrigated with three protocols: Group 1 (control): 5.25% NaOCl; Group 2: 40% CA (citric acid), 5.25% NaOCl, 40% CA, water, ethanol; Group 3: 40% CA, 5.25% NaOCl, 40% CA, water, 2% chlorhexidine. Canals were filled using vertical condensation technique with gutta-percha and fluorescein-stained AH Plus sealer. After 72 h, 1 mm thick cross-sections were cut at 2, 5, 8 mm from the apex. Confocal laser microscope was used to measure the sealer penetration into dentinal tubules. Mean depth of sealer penetration (in micrometres) was 107, 131, 170 (Group 1); 146, 233, 317 (Group 2); 185, 301, 542 (Group 3); in apical, middle and coronal parts, respectively. Irrigation protocol ended with chlorhexidine resulted in the deeper sealer penetration compared with alcohol.
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