| Autor: |
Krokidis, Andreas, Bonfanti, Carlo, Cerutti, Antonio, Barabanti, Nicola, Zinelis, Spyros, Panopoulos, Panos |
| Předmět: |
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| Zdroj: |
Australian Endodontic Journal; Dec2017, Vol. 43 Issue 3, p110-114, 5p |
| Abstrakt: |
Comparison of the ability of newly designed rotary files to eliminate viable Enterococcus faecalis populations from long oval root canals of extracted human teeth to that of the self-adjusting file ( SAF). One hundred caries-free, single-rooted, long oval teeth were contaminated with E. faecalis. The teeth were randomly distributed into four groups ( n = 25) as follows: G.1, manual; G.2, SAF; G.3, ProTaper Next; and G.4, BT-Race. Two microbial samples were obtained from each tooth with sterile paper points, (s1) before and (s2) after instrumentation. The relative reduction in colony-forming units ( CFUs) from s1 to s2 measurements was calculated and compared among the groups using parametric Kruskal-Wallis one-way anova on ranks and Dunn's method ( a = 0.05). The results indicated a descending order of the groups with regard to efficacy as follows: BT-Race, Next, SAF and manual. The statistical analysis showed that the relative percentage reduction ( RR) of CFUs was lower in the manual group than in the other groups, while the SAF group showed a significantly lower RR than the BT-Race group ( P < 0.05). The efficacy in reduction of the microbiological load of viable E. faecalis from long oval root canals was different between the tested endodontic systems. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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