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In vitro evaluation of matched-taper single-cone obturation with a fluid filtration method
Ugur Inan1, Cumhur Aydin, Yasar Meric Tunca
1Department of conservative dentistry and endodontics, Faculty of dentistry, Ondokuz Mayis University, Samsun, Turkey.
Objective:
Widespread use of rotary nickel-titanium systems has caused manufacturers to produce gutta-percha cones that match the taper of the canals prepared with these systems. Obturations with these cones may provide 3-dimensional obturation of the root canal in less time. The aim of this study was to use a fluid filtration method to compare the apical sealing ability of matched-taper single-cone, Thermafil and lateral condensation obturations.
Materials And Methods:
Sixty-six extracted human lower premolar teeth were instrumented to size F3 with ProTaper instruments. The teeth were divided into 3 groups and obturated with matched-taper single-cone, Thermafil and lateral condensation techniques. AH Plus was used as a sealer. Six teeth were used as positive and negative controls. A fluid filtration system was used to evaluate the apical seal. Measurements were made at 2-minute intervals for 8 minutes and the average of these values was recorded. One-way analysis of variance test was used for statistical analysis.
Results:
Mean leakage values for the lateral condensation, single-cone and Thermafil groups were 0.49 +/- 0.37 microL min(-1), 0.39 +/- 0.24 microL min(-1) and 0.44 +/- 0.25 microL min(-1), respectively. The difference between the groups was not statistically significant (p > 0.05).
Conclusions:
The apical sealing ability of matched-taper single-cone obturation was comparable with that of lateral condensation and Thermafil techniques.
