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The prevalence of the failure modes
| Group | n | Immediate failure mode |
Aging failure mode |
|||||
|---|---|---|---|---|---|---|---|---|
| I | II | III | I | II | III | |||
| I | Control | 15 | 11 | 0 | 4 | 10 | 0 | 5 |
| II | EDTA | 15 | 5 | 5 | 5 | 4 | 6 | 5 |
| III | DO | 15 | 4 | 5 | 6 | 4 | 3 | 8 |
| IV | CHX | 15 | 3 | 2 | 10 | 3 | 3 | 9 |
EDTA: Ethylenediaminetetraacetic acid; DO: Doxycycline; CHX: Chlorhexidine
