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  • Title: [Comparative microleakage study of two root canal sealants: calcium hydroxide and zinc oxide eugenol].
    Author: Tökés L, Juhász A, Dobó Nagy C.
    Journal: Fogorv Sz; 1997 Oct; 90(10):301-6. PubMed ID: 9410741.
    Abstract:
    A quantitative longitudinal study was carried out to compare the amount of microleakage using two different types of root canal sealers on straight and curved root canals. Microleakage was measured just after the setting of the sealer, one month and three months after that using fluid transport model. One month follow up results showed that in straight root canals both the ZOE containing Pulp Canal Sealer and the calciumhydroxide containing Sealapex sealers produced similar microleakage values to that values measured just after the setting of materials. One month follow up measurement resulted higher values in curved canals comparing to the straight ones in case of both the tested materials. Three months follow up measurement demonstrated worse results in the Sealapex groups than the Pulp Canal Sealer groups. With loglinear statistical analysis the following interactions were proved between variables: root canal form/microleakage, root canal form/time laps, and material/microleakage/time laps. Results of the present study are in good agreement with conclusions of recently published other studies, namely calciumhydroxide containing sealers resulted in higher microleakages than ZOE containing sealers.
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