Comparison of different irrigants on calcium hydroxide medication removal: microscopic cleanliness evaluation.

摘要: Calcium hydroxide dressing residuals can compromise endodontic sealing. This study evaluated the cleaning efficacy of different irrigants in removing calcium by SEM image analysis. Fifty-four single-rooted mandibular premolars were instrumented to a master apical file #60 and dressed with hydroxide. After 36 hours, teeth reopened Ca(OH)(2) medication was removed 5 experimental groups: 0.5% NaOCl (G1), EDTA-C (G2), citric acid (G3), EDTA-T (G4), re-instrumentation MAF using lubrificant, followed (G5). The roots split buccal-lingual direction prepared for analysis cervical, middle, thirds (9, 6, 3mm from apex). Five blinded examiners wall cleanliness scale 1 5. Statistical performed Kruskal-Wallis at 5% level significance. Group G5 had best results all thirds, significant statistical differences compared other groups middle coronal third, G1 third. On hand, G1, only flushed NaOCl, worst results, groups. achieved G4 recapitulation combination improved removal better than an irrigant flush alone.