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  Indian J Med Microbiol
 

Figure 3: (a and b) SEM micrograph of specimen treated with 6% citric acid. No smear layer and smear plugs were observed. Open dentinal tubules can be seen. (3a: ×4,000; 2b: ×3,000)

Figure 3: (a and b) SEM micrograph of specimen treated with 6% citric acid. No smear layer and smear plugs were observed. Open dentinal tubules can be seen. (3a: ×4,000; 2b: ×3,000)