Bioceramic Sealer

These sealers are based on calcium silicate or calcium phosphate and are reported as biocompatible and dimensionally stable on setting.

Sealer reaches lateral canals and tubules that gutta-percha cones cannot access. It occupies the space between the prepared dentinal wall and the core material and can provide antimicrobial action.

It is placed during root-canal obturation. The core material should occupy almost all of the canal, with sealer applied in a small amount around it.

Glass-ionomer sealers have dentin bonding, resistance to solubility and sustained fluoride release. Resin sealers have improved adherence but can shrink and can be difficult to remove during retreatment.

Studies comparing premixed bioceramic sealers with standard sealers examine root-canal treatment outcome, extrusion rate and pain after obturation.

Sealers can be toxic before they set, so extrusion into tissues around the root end should be avoided. Bioceramic sealers can be technically difficult to manipulate and have a shorter shelf-life than some alternatives.