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 Indian J Med Microbiol  
 

Table 2: Means (standard deviations) of the color change of bleached enamel subjected to surface treatment and to coffee staining (ΔEs), in T0 and T1

Table 2: Means (standard deviations) of the color change of bleached enamel subjected to surface treatment and to coffee staining (ΔE<sub>s</sub>), in T0 and T1