Abstract: Since Oct.1981 we have filled the apical foramen with half- softened gutta percha points. Among the 14 freshly extracted mandibular and maxillary incisors, 6 were treated with conventional root canal filling technique, 8 were treated by half-softened gutta percha points technique. The isotope investigation showed that half-softened gutta percha technique afforded less leakage than conventional root canal fillings.Statistically,there was significant difference. X-Ray examinations showed half-softened gutta percha points could fill apical delta space, accessary canals and side branches. Up to 10 month follow up the results remained satisfactory.