Microbial microleakage in temporary restorative materials after post space preparation
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Data
2008
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Resumo
Purpose: This study investigated the microbial microleakage through temporary restorative
materials (Coltosol, IRM, Vidrion R) after post space preparation.
Methods: Forty-two maxillary anterior human teeth were prepared and obturated with gutta-
percha and Sealapex using the lateral condensation technique, with 4mm of apical
obturation remaining. . Calcium hydroxide paste was used to fill the post space preparation,
and 4mm of the coronal portion was restored with the temporary filling materials. Six
specimens were totally sealed (negative control) and six specimens were not filled (positive
control). An in vitro microbial leakage test (MLT) with a split chamber (upper/lower chambers)
was used. Microbial microleakage was observed daily for 90 days. Data were analyzed by
Kruskal-Wallis and Mann-Whitney tests.
Results: Coltosol, IRM, and Vidrion R allowed microbial microleakage after 19 to 89 days.
Conclusion: All temporary fillings and intracanal dressings did not prevent the penetration
of microorganisms to the root apex.
Descrição
Palavras-chave
Coronal leakage, Calcium hydroxide, Bacterial leakage, Temporary restorations, Post, Infiltração coronária, Infiltração bacteriana, Hidróxido de cálcio, Restaurações temporárias, Retentores
Citação
VELOSO, Heloisa Helena et al. Microbial microleakage in temporary restorative materials after post space preparation. Revista Odonto Ciência, Porto Alegre, v. 23, n. 2, p. 187-191, 2008.