ABSTRACT. Aim To examine the success of the one-appointment pulpotomy technique with three different
medicaments on primary molar teeth. Methods The study was conducted on 104 primary molars in 104 children
with an indication for pulpotomy treatment on at least one primary molar. Primary teeth were treated with either
formocresol (FC) (34 teeth), calcium hydroxide (CA) (33 teeth) or ferric sulphate (FS) (37 teeth) using
standardised criteria for the pulpotomy procedures. Teeth were clinically and radiographically evaluated during
the examination period of 18 months. Results The clinical success rate at 18 months for the FC and FS groups
was 90.9% and 89.2%, respectively. The CA showed an overall clinical success rate of 82.3%, with no statistical
difference compared with either the FC or FS groups. The overall radiographic success for each technique was:
FC 84.8%, CA 76.5%, and FS 81.1%. The presence of a dentine bridge above the pulp amputation site was
observed radiographically for CA (47%), and FS (40.5%) pulpotomies without any statistical difference.
Radiographic examination did not reveal the presence of a dentine bridge for any of the teeth treated with FC
pulpotomy. Conclusion Favourable clinical and radiographic success rates of ferric sulphate pulpotomy,
comparable to formocresol were obtained. Therefore, ferric sulphate can be recommended as a pulpotomy
medicament.