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  Indian J Med Microbiol
 

Figure 2: (a) A photomicrograph of the mineral trioxide aggregate group after 21 days (H and E, ×20) showing interrupted thin hard-tissue formation of 15.4 um in thickness (black arrows), exposure site (double arrow), and the pulp capping material (yellow arrow). (b) A photomicrograph of the mineral trioxide aggregate + chitosan group after 21 days (H and E, ×20) showing the exposure site (double arrow), and new partially formed dentine bridge of 7.3 um in thickness (arrow)

Figure 2: (a) A photomicrograph of the mineral trioxide aggregate group after 21 days (H and E, ×20) showing interrupted thin hard-tissue formation of 15.4 um in thickness (black arrows), exposure site (double arrow), and the pulp capping material (yellow arrow). (b) A photomicrograph of the mineral trioxide aggregate + chitosan group after 21 days (H and E, ×20) showing the exposure site (double arrow), and new partially formed dentine bridge of 7.3 um in thickness (arrow)