Introduction The deciduous tooth often presents post-carious pulpal implications that require endodontic treatment. The deciduous tooth goes through different stages during which it witnesses changes of anatomical and physiological nature: the root undergoes resorption and the pulp’s reactive potential is diminished or even lost. The tooth has also to be considered within the physiopathological context of the child. The age, general health, and the compliance of the young patient (and sometimes that of the parents) are also factors to be considered before undertaking any treatment procedure.