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  Indian J Med Microbiol
 

Table 1: Mean changes in values L*a*b* and total color change dE* of all groups, after immersing group II, III and IV in tea solution at the end of 1 hour after bleaching

Table 1: Mean changes in values L*a*b* and total color change dE* of all groups, after immersing group
II, III and IV in tea solution at the end of 1 hour after bleaching