ABSTRACT
Objective: The aim of this study was to evaluate the viability of human periodontal ligament
(PDL) cells on MTA-Fillapex, GuttaFlow 2, TotalFill Sealer, and BioRootTM RCS in comparison to conventional epoxy resin-based (AH Plus) and zinc-oxide-eugenol-based
(Roth’s 801) sealers. Materials and Methods: Sealers were divided into two groups, and five coverslips for each material per group
were prepared. In the first group, PDLs were added immediately after the preparation
of sealers (Fresh Group), and in the second, PDLs were added after 24 h. PDLs were
cultured for 72 h and afterward, counted using standard hematocytometry. A Mann–Whitney
U-test and Kruskal–Wallis test were used for the statistical analysis. The level of
significance was set at 5%. Furthermore, cell morphology was assessed by confocal
microscopy. Results: The number of viable cells for the 24 h-set groups was higher than the freshly mixed
in all sealers except Roth’s 801. In both groups, GuttaFlow 2 presented the highest
number of viable cells. In a descending order of cells’ survival, TotalFill, BioRoot,
and MTA-Fillapex are following and the conventional sealers, AH Plus and Roth’s 801,
seem not to exhibit the biological properties of the others. Cells grown on GuttaFlow
2, TotalFill, and BioRoot were observed to be well-formed. In contrast, MTA-Fillapex
exhibited untypical morphology. No cells were detected on the surfaces of AH Plus,
as well as Roth’s 801. Conclusions: All novel sealers presented increased cell viability in comparison to conventional
sealers. GuttaFlow 2 exhibited the highest cell viability.
Key words:
Cell morphology - cells viability - sealers