Journal
JOURNAL OF ENDODONTICS
Volume 34, Issue 6, Pages 718-720Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.joen.2008.03.007
Keywords
fluid filtration; glass ionomer; intraorifice barrier; leakage studies; Resilon; Triage
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The prevention and control of coronal microleakage is critical for successful endodontic outcomes. The purpose of this study was to compare coronal microleakage between Resilon alone and gutta-percha with a glass ionomer intraorifice barrier using a fluid filtration model. Thirty-four extracted human teeth were decoronated, prepared to a standardized length of 16 mm, and instrumented to a .06 taper ISO size 40. After removal of controls, the remaining roots were randomly divided into two equal groups of 15 and obturated with either Resilon alone or gutta-percha with a 2-mm glass-ionomer intraorifice barrier. After set of the sealers, the teeth were evaluated for microleakage using a fluid filtration model. A Student t test found significantly less leakage for the gutta-percha/glass-ionomer intraorifice barrier group than the Resilon alone group (p = 0,008).
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