Coronal pulp amputation and applica­ tion of formocresol for three to five days was used in the treatment of 324 decidu­ ous molars with carious exposures. Roentgenographic and clinical evaluations were carried out over four years; treat­ ment was successful in more than 90 per cent of the molars treated by use of the formocresol-pulpotomy technic. Formocresol pulpotomy results in a vi­ able , pulp. Consequently, the procedure properly may be considered a vital rather than a nonvital technic. This technic is the method of choice for carious expo­ sures in deciduous teeth.