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 Indian J Med Microbiol  
 

Figure 3: In the positive control group, at ×1000 magnification, cell aggregates of bacteria are seen covering the dentinal tubules and at ×3000 magnification, bacterial biofilms are seen covering the dentinal tubules

Figure 3: In the positive control group, at ×1000 magnification, cell aggregates of bacteria are seen covering the dentinal tubules and at ×3000 magnification, bacterial biofilms are seen covering the dentinal tubules