When I was training formocresol was the standard dressing for primary teeth following pulpotomy . However, it  use is now questionable because of potential adverse effects such as potential carcinogenicity, mutagenicity, and cytotoxicity.  Consequently a range of other materials have been investigated,  ferric sulphate, gluatraldehyde preparations , mineral trioxide aggregate (MTA), electrosurgery, calcium hydroxide, and laser … Continue reading Review suggests that mineral trioxide aggregate had best clinical and radiographic outcomes at 9-12 months for primary molar pulpotomy