Formocresol, TKF is a mixture consisting of formalin, cresol and glycerine used in dentistry.is primarily used in dentistry as a medication for performing vital pulpotomies on primary (baby) teeth, meaning it is applied to the exposed pulp of a tooth to remove the infected portion while preserving the healthy root structure; it essentially mummifies the remaining pulp tissue, allowing the tooth to remain functional until it naturally exfoliates. Formacresol, TKF is a mixture consisting of formalin, cresol and glycerine used in dentistry. Volume: 15ml