The replantation of avulsed teeth with immature root
development has been the subject of review.
As the pulps in a small percentage of replanted immature teeth
may survive, it is recommended that endodontic
treatment should be delayed in these teeth to establish
whether root formation continues. Revascularization
appears inversely proportional to root length. However,
external inflammatory resorption progresses very
rapidly in immature tooth roots. Thus, regular clinical
and radiographic examinations at short intervals are
recommended to establish whether resorptive processes
have been initiated. Great care should be taken in
delaying treatment if patient compliance to attend
recall examinations cannot be assured. Calcific changes
within the pulp canal imply that the pulp has remained
viable at least for some time following the injury.