Bond strength of Epiphany (TM) Sealer combined with different adhesive systems photo-activated with LED and QTH
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
19/10/2012
19/10/2012
2009
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Resumo |
The Epiphany (TM) Sealer is a new dual-curing resin-based sealer and has been introduced as an alternative to gutta-percha and traditional root canal sealers. The canal filling is claimed to create a seal with the dentinal tubules within the root canal system producing a `monoblock` effect between the sealer and dentinal tubules. Therefore, considering the possibility to incorporate the others adhesive systems, it is important to study the bond strength of the resulting cement. Forty-eight root mandibular canines were sectioned 8-mm below CEJ. The dentine discs were prepared using a tapered diamond bur and irrigated with 1% NaOCl and 17% EDTA. Previous the application Epiphany (TM) Sealer, the Epiphany (TM) Primer, AdheSE, and One Up Bond F were applied to the root canal walls. The LED and QTH (Quartz Tungsten Halogen) were used to photo-activation during 45 s with power density of 400 and 720 mW/cm(2), respectively. The specimens were performed on a universal testing machine at a cross-head speed of 1 mm/min until bond failure occurred. The force was recorded and the debonding values were used to calculate Push-out bond strength. The analysis of variance (ANOVA) and Tukey`s post-hoc tests showed significant statistical differences (P < 0.05) to Epiphany (TM) Sealer/Epiphany (TM) Primer/QTH and EpiphanyTM Sealer/AdheSE/QTH, which had the highest mean values of bond strength. The efficiency of resin-based filling materials are dependent the type of light curing unit used including the power density, the polymerization characteristics of these resin-based filling materials, depending on the primer/adhesive used. |
Identificador |
LASER PHYSICS, v.19, n.8, p.1872-1876, 2009 1054-660X http://producao.usp.br/handle/BDPI/26307 10.1134/S1054660X09150304 |
Idioma(s) |
eng |
Publicador |
MAIK NAUKA/INTERPERIODICA/SPRINGER |
Relação |
Laser Physics |
Direitos |
restrictedAccess Copyright MAIK NAUKA/INTERPERIODICA/SPRINGER |
Palavras-Chave | #CANAL FILLING MATERIAL #LIGHT-CURING UNITS #COMPOSITE RESIN #INTRARADICULAR DENTIN #GUTTA-PERCHA #RESTORATIONS #TEMPERATURE #RESISTANCE #CONVERSION #CEMENTS #Optics #Physics, Applied |
Tipo |
article original article publishedVersion |