Bioactivity vs Stability in Endodontic Sealers: are We Overcorrecting?

Calcium silicate–based (bioceramic) sealers have transformed modern endodontics, promising bioactivity, improved healing, and simplified obturation techniques. But does increased bioactivity come at the expense of long-term stability?

In this EndosKool talking-head discussion, Dr. Ali Nasseh reviews and reflects on a recent paper by Dr. Marco Versiani examining the paradox of calcium silicate sealers — where the very properties that promote biological interaction may also undermine dimensional stability over time.

Drawing on decades of clinical experience, including early work introducing hydraulic condensation and simplified obturation techniques, Dr. Nasseh explores why more bioactivity is not always better, how variability in bioceramic formulations affects outcomes, and why criticism of modern materials must always be made in comparison to historical alternatives like ZOE and epoxy sealers.

This video offers a measured, non-commercial, clinically grounded perspective on:
• Bioactivity vs sealing stability
• The limits of in-vitro testing
• Why not all “bioceramics” behave the same
• The importance of balance over hype in endodontic innovation

Sometimes in medicine, “good enough” is not settling — it’s wisdom.


Tags:
bioceramic sealer
calcium silicate sealer
endodontic obturation
hydraulic condensation
single cone technique
bioactive sealers
root canal sealer stability
endodontics education
EndosKool
Allen Ali Nasseh
Marco Versiani
bioceramics dentistry