Sammanfattning
The root canal filling concludes the classical triad
in endodontic treatment: biomechanical instrumentation,
disinfection and obturation. The purpose
of the root canal filling is to prevent penetration
of bacteria into the root canal and to prevent
access of nutrients and growth of residual bacteria.
The function of the root canal filling is to seal
and obturate the root canal, and kill remaining microbes.
This is achieved most often with the use
of a core material and a sealer. The core material
acts as a piston to push the sealer out to fill the
root canal system. In addition to achieve intimate
contact with dentin, the sealer has contact with
periapical soft tissue. Therefore the sealers have to
fulfill both technical and biological requirements.
The endodontic treatment ends with a coronal seal
to prevent coronal leakage of bacteria. A technically
well performed root canal filling, acceptable
filling length and homogenous root filling, evaluated
radiographically, with an adequate coronal
restoration, is a reliable predictor for a successful
outcome.