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  Indian J Med Microbiol
 

Figure 11: Mechanical scrubbing. (a) Bacterial biofi lm tightly attached to the canal dentin wall. The biofi lm was not removed by copious irrigation with sodium hypochlorite that was applied with syringe and needle irrigation in this clinical case. (b) A model: The burnt porridge is tightly attached to the bottom of the pot, representing either a biofi lm or pulp tissue remnants. (c) A stream of liquid is unlikely to remove the tightly attached material. (d and e) A metal scrubbing pad is extremely effective in removing the tightly attached material. The SAF cleans the canal walls with a scrubbing motion, equivalent to the action of the metal scrubbing pad. ("a" is adapted from Nair et al. 2005)[75]

Figure 11: Mechanical scrubbing. (a) Bacterial biofi lm tightly attached to the canal dentin wall. The biofi lm was not removed by copious irrigation with sodium hypochlorite that was applied with syringe and needle irrigation in this clinical case. (b) A model: The burnt porridge is tightly attached to the bottom of the pot, representing either a biofi lm or pulp tissue remnants. (c) A stream of liquid is unlikely to remove the tightly attached material. (d and e) A metal scrubbing pad is extremely effective in removing the tightly attached
material. The SAF cleans the canal walls with a scrubbing motion, equivalent to the action of the metal scrubbing pad. (et al. 2005)[75]">