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![[Table/Fig-2]:](https://www.ncbi.nlm.nih.gov/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Click%20on%20image%20to%20zoom&p=PMC3&id=4963775_jcdr-10-ZC71-g001.jpg)
Scanning electron microscopy (SEM) (a) dentin surface showing absence of smear layer and fully exposed dentin tubules (b) E. faecalis biofilm. Note the size of the E. faecalis (c) (Group I) after treatment with 2% CHX syringe irrigation (d) Group III- after treatment with 2% CHX syringe irrigation and PUI (e) Group II- after treatment with 0.1 % octenidine syringe irrigation (f) Group IV- after treatment with 0.1 % octenidine syringe irrigation with PUI.
