Sealing furcation perforations with silver glass ionomer cement: An in vitro evaluation

Zvi Fuss*, Itzhak Abramovitz, Zvi Metzger

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Furcation perforations sealed with silver glass ionomer cement (Chelon Silver) were evaluated in vitro compared with amalgam. Access cavities were prepared in 25 extracted human molar teeth. The coronal orifices of the root canals were sealed with amalgam and varnish. Naturally occurring coronal leakage through the intact pulp chamber floor was determined quantitatively for each tooth, using a modified fluid transport model, under pressure of 1.2 Atm. Each tooth was then disconnected from the system, perforated at the furcation, and the perforation sealed with either Chelon Silver (10 teeth) or amalgam (10 teeth); five remaining teeth served as a negative control. After incubation for 24 h at 37°C in 100% humidity, teeth were reconnected to the modified fluid transport system, and coronal leakage under pressure was evaluated at 1, 2, 6, 15, and 24 h. Leakage through each tooth was compared with that of its own intact pulp chamber floor before perforation and the groups compared with each other. No significant difference was found between the mean leakage of the intact pulp chamber floors of the two groups. Chelon Silver had a significantly better sealing ability than amalgam (p < 0.01): leakage rate of 0.007 and 0.017 μl/min, respectively. It is concluded that Chelon Silver could be an adequate sealer for furcation perforations.

Original languageEnglish
Pages (from-to)466-468
Number of pages3
JournalJournal of Endodontics
Issue number8
StatePublished - Aug 2000


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