Research Article
Sulfate-Reducing Bacteria: Biofilm Formation and Corrosive Activity in Endodontic Files
Table 3
Measurement of pH at different cell culture times and cell viability of replicas from the different culture times.
| | Postgate C culture medium | Modified Postgate E culture medium | Time | Desulfovibrio desulfuricans (oral) | Desulfovibrio desulfuricans (environmental) | Desulfovibrio fairfieldensis (association) | | UEF-1 | UEF-3 | UEF-4 | UEF-2 |
| pH/cell growth | Culture 445 days | pH 7/reduction | pH 7/positive | pH 7/positive | pH 7/positive | Cultivation 7 days (maintenance of 445-day biofilm) | — | — | 7/positive | — | Cultivation 14 days (maintenance of 445-day biofilm) | pH 7/reduction | — | — | pH 7/positive | Replica | Replica of original culture (445 days) | Negative | Negative | Positive | Negative | Replica of samples of reimmersion culture | Negative | — | Positive | Positive |
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