Internal resorption - Time plan

In theory, internal root resorption could be treated in one appointment when the apical canal is vital and the resorption has not perforated. In practice, removal of all resorptive tissue requires a minimum of two appointments.

In cases, where the whole root canal has become necrotic, the minimum number of appointments is two, 1 - 3 weeks apart.

If the lesion has perforated out of the root, long-term calcium hydroxide therapy or surgical intervention or both are needed in cases where the tooth still is considered worth the treatment effort.