Abstract:
Purpose: The purpose of this study was to
compare the sealing ability of temporary
restorative materials at 24 hrs and 1 week.
Materials and Methods: Endodontic access cavities
were prepared in 56 extracted lower incisor-teeth
and divided into 5 groups (n=10). Standard 5 mm
deep access preparations were completed and root
canals were prepared to size ISO #30 file. The access
cavities were restored as follows: Group 1: temporary
restorative material (Ceivitron); Group 2: glass ionomer
cement (Fuji II); Group 3: zinc oxide-eugenol cement
(IRM); Group 4: zinc phosphate cement (Adhesor);
Group 5: polytetrafluoroetylene tape (PTFE). The
quality of the coronal sealing of each specimen was
measured (24 hrs and 1 week) using fluid transport
model. The data was analysed with repeated
measurements of ANOVA, Tukey, Paired samples T-Tests.
Results: A significant difference was found among
the groups at all time-periods (p<0.05). At 24 hrs,
PTFE showed similar leakage with Ceivitron, IRM,
and Fuji II but it showed higher leakage than Adhesor.
At 1 week, Ceivitron showed higher leakage than
PTFE, meanwhile PTFE showed similar leakage
with IRM, Fuji II, and Adhesor (p>0.05). Sealing
ability of IRM and PTFE groups significantly
increased by time (p<0.05 and p<0.001 respectively).
Conclusion: Within the limitations of this study, PTFE
showed an acceptable short-term sealing capability
when compared to the other commonly used temporary
restorative materials at 1 week measurements.
