In pulpotomy medicaments for primary teeth, which statement correctly contrasts formocresol and ferric sulfate?

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In pulpotomy medicaments for primary teeth, the important distinction is how the agent interacts with the pulp. Formocresol fixes tissue, turning part of the pulp into a devitalized, preserved state by chemical fixation. Ferric sulfate, on the other hand, acts as a hemostatic to stop bleeding and helps maintain pulp vitality without fixing the tissue.

The statement reflects that ferric sulfate is a newer option used to achieve hemostasis while preserving vitality and causing less tissue fixation compared with formocresol. Because of safety concerns about formocresol’s components, many clinicians now prefer ferric sulfate or MTA as more favorable choices.

Ferric sulfate’s role is not to permanently fix tissue; it stops bleeding and allows the remaining pulp to stay vital, whereas formocresol’s approach involves tissue fixation. That difference is the core reason this option is the best contrast.

Other ideas imply that formocresol is universally safe or that ferric sulfate fixes tissue permanently, which does not align with current understanding. Ferric sulfate does not fix tissue; it is used for hemostasis and vitality preservation, with safety considerations guiding contemporary practice toward ferric sulfate or MTA.