Initial In Vitro Biological Response to Contemporary Endodontic Sealers

Serge Bouillaguet, John C. Wataha, Franklin Chi Meng Tay, Martha G Brackett, Petra E. Lockwood

Research output: Contribution to journalArticlepeer-review

91 Scopus citations


The objective of this study was to evaluate the cytotoxicity of three endodontic sealers (AH Plus/Maillefer-Dentsply, Epiphany/Pentron, GuttaFlow, Coltene-Whaledent). Materials were mixed according to the manufacturer instructions and packed into Teflon molds (10 × 1 mm). For cytotoxicity testing (MTT method), the specimens were placed in contact with cultured cells, then evaluated at two subsequent time points (24 or 72 h). In addition to testing the mixed materials, 5 μl of primer liquid (GuttaFlow and Epiphany) and resin solvents (HEMA, ethanol, sterile water, or acetone) were added directly in culture for 24 and 72 h. The results showed that most materials pose significant cytotoxic risks and that cytotoxicity generally increased with time. At 72 h, GuttaFlow became significantly less toxic than AH Plus, Epiphany sealer, and Resilon. The current results support the need to continue to develop better endodontic sealers that combine the excellent sealing and bonding properties of resins with acceptable biological properties for endodontic applications.

Original languageEnglish (US)
Pages (from-to)989-992
Number of pages4
JournalJournal of Endodontics
Issue number10
StatePublished - Oct 1 2006


  • Biocompatibility
  • MTT
  • cell-culture
  • endodontics
  • resilon

ASJC Scopus subject areas

  • General Dentistry


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