A pulpotomy is the removal of a portion of the pulp, including the diseased aspect, with the intent of maintaining the vitality of the remaining pulpal tissue by means of a therapeutic dressing. A healthy tooth has a space inside it called the "pulp space" which is filled with soft tissues - nerves, blood vessels, and pink connective tissue. When the carious process develops in a tooth, the bacteria associated can cause pulpal inflammation, which is often what causes toothache.
Damage to the pulp of permanent teeth usually requires a Root Canal Treatment or Endodontic Therapy. The pulp of primary or deciduous teeth, which only have to survive until an adult teeth come in, and because they have a better blood supply, can sometimes be saved.
A pulpotomy is a procedure used to try to save a badly decayed tooth with an infected pulp. It is sometimes called a “baby root canal,” for it is more commonly performed on baby teeth, especially molars.