[The use of tricalcium phosphate in the vital subtotal extirpation of the pulp]

The authors have proved the desirability of vital subtotal extirpation of the pulp in experiments and clinically. Exposure to tricalcium phosphate transformed the terminal portion of the root pulp into osseocement biologic filling, obturated the apical opening and thus prevented the inflammation in the periodontium and protected it from pathologic exposures.