Short- and long-term sealing ability of Gutta-flow and AH-Plus using an ex vivo fluid transport model.
OBJECTIVE
To use the fluid transport model to evaluate the ex vivo short- and long-term microleakage along root canals filled with Gutta-flow or AH-Plus using the cold lateral compaction technique.


METHODS
A total of 38 single-rooted human teeth were used for the assessment of microleakage. The crowns of the teeth were sectioned below their cemento-enamel junctions to adjust the length of the roots to approximately 15 mm. The root canals were instrumented using the step-back technique and filled using cold lateral condensation. The sealer employed was either Gutta-flow (Group A) or AH-Plus (Group B). Microleakage along the root canals was evaluated using a fluid transport model after periods of 1 week and 3 months.


RESULTS
The microleakage values (microL h(-1)) for group A were 0.36 +/- 0.33 at 1 week and 0.41 +/- 0.36 at 3 months. Group B showed mean microleakage values 0.2 +/- 0.31 at 1 week and 0.28 +/- 0.38 at 3 months. Statistical analysis indicated no significant differences (P > 0.05) between the two groups after either 1 week or 3 months.


CONCLUSIONS
There was no significant difference between AH-plus and Gutta-flow in terms of sealing ability.
Vasiliadis
L
L
Department of Endodontology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
Kodonas
K
K
Economides
N
N
Gogos
C
C
Stavrianos
C
C
D001840:Dental Bonding; D003763:Dental Leakage / Q000145:classification*; D003786:Dental Pulp Cavity / Q000473:pathology; D004129:Dimethylpolysiloxanes / Q000737:chemistry*; D004338:Drug Combinations; D004492:Edetic Acid / Q000737:chemistry; D004853:Epoxy Resins / Q000737:chemistry*; D006171:Gutta-Percha / Q000737:chemistry*; D006801:Humans; D006813:Humidity; D008422:Materials Testing; D011312:Pressure; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012388:Root Canal Irrigants / Q000737:chemistry; D018915:Root Canal Preparation / Q000295:instrumentation / Q000379:methods; D012973:Sodium Hypochlorite / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry
D004129:Dimethylpolysiloxanes; D004338:Drug Combinations; D004853:Epoxy Resins; C515718:GuttaFlow; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; C534916:epoxy resin-based root canal sealer; D014867:Water; D006171:Gutta-Percha; D004492:Edetic Acid; D012973:Sodium Hypochlorite