In vitro evaluation of microleakage of different materials used as pit-and-fissure sealants.
The aim of this study was to evaluate in vitro the marginal microleakage of different materials used as pit-and-fissure sealants (Delton, Filtek Flow, Dyract Flow and Vitremer). Fifty-six extracted sound human third molars were randomly assigned to 4 groups (n=14). After sealant placement, the teeth were thermocycled (500 cycles; 5 degrees C, 37 degrees C and 55 degrees C), isolated, immersed in 2% buffered methylene blue dye for 4 h, included in acrylic resin and sectioned longitudinally in a buccolingual direction. The sections were analyzed for leakage using an stereomicroscope. A 4-criteria ranked scale was used to score dye penetration. All materials exhibited dye penetration to some extension and no statistically significant difference was observed among the groups (p>0.05). In conclusion, the findings of this study showed that a flowable composite resin, a flowable compomer and resin-modified glass ionomer placed on occlusal pits and fissures had similar marginal sealing as the unfilled self-cured resin-based sealant.
Pardi
Vanessa
V
Graduate Program in Community Health, University of Sacred Heart, Bauru, SP, Brazil.
Sinhoreti
Mário Alexandre Coelho
MA
Pereira
Antonio Carlos
AC
Ambrosano
Gláucia Maria Bovi
GM
Meneghim
Marcelo de Castro
Mde C
D003763:Dental Leakage; D006801:Humans; D010895:Pit and Fissure Sealants / Q000737:chemistry*; D018709:Statistics, Nonparametric
D010895:Pit and Fissure Sealants