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Debasis De1 and G. P. Singh* ... however, differences in gas production between group T-3, T-5 and T-7 at P-1 was not significant. ... mask the inhibiting effect of monensin to cell wall digestibility and 35 ppm monensin is optimum to reduce ...
May 31, 2014 - water technology (with or without) on growth parameters and some mineral contents of pear seedlings. Obtained results show that the irrigation ...
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May 17, 2015 - 2Rice Research Institute, Kala Shah Kaku, Pakistan. *Corresponding author email [email protected]. Keywords. Rice, ZnSO4, fertilizer ...
ABSTRACT β-amino butyric acid (β-ABA), salicylic acid (SA), calcium oxide (CaO) + urea play important roles in inducing and accumulating phytoalexins in ...
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Abstract: The solvatochromic effect in methylene blue dye was studied with the effect of solvent polarity on the absorption spectra in Water,. Methanol, Ethanol ...
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Effect of Different Intercropping Arrays with Dragonfruit (Hylocereus undatus) on Agroecological Outdoor Production of. Habanero Pepper (Capsicum chinense ...
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Effect of Light-Activation with Different Light-Curing
prosthetic or restorative treatment (1). The retention of glass-fiber-reinforced posts is ... coronal, middle and apical post/root regions were submitted to the push-out test ... Higher adhesion of the resin cement to intraradicular dentin was observed in ... Key Words: dental bonding, dental cements, curing lights, dental, dentin.
362 Dent J (2012) 23(4): 362-366 Braz
M.E. Miguel-Almeida et al.
ISSN 0103-6440
Effect of Light-Activation with Different Light-Curing Units and Time Intervals on Resin Cement Bond Strength to Intraradicular Dentin Maria Eleonora MIGUEL-ALMEIDA Mario Lucio da Costa AZEVEDO Fuad Abi RACHED-JÚNIOR Camila Favero OLIVEIRA Ricardo Gariba SILVA Danielle Cristine MESSIAS Dental School, University of Ribeirão Preto, Ribeirão Preto, SP, Brazil
The aim of this study was to assess the bond strength of a resin cement to intraradicular dentin varying the light-curing unit and the moment at which the light was applied. Post spaces of endodontically treated canines were prepared. The roots were distributed into 6 groups (n=10) according to the light-curing unit and the moment of light exposure: I) Quartz tungsten halogen-600 mW/cm2 (QTH) + immediate light activation (t0); II) QTH + light activation after 10 min (t10); III) Light-emitting diodes (LED)-800 mW/cm2 (LED800)+ t0; IV) LED-800 + t10; V) LED-1,500 mW/cm2 (LED-1500)+ t0; VI) LED-1500 + t10. After post cementation, slices from coronal, middle and apical post/root regions were submitted to the push-out test and failure evaluation. It was verified that LED-800 (4.40 ± 3.00 MPa) and LED-1500 (4.67 ± 3.04 MPa) provided bond strength statistically superior to QTH (3.13 ± 1.76 MPa) (p0.05). There was no significant difference between t0 and t10 (p>0.05). Coronal post/root region (4.75 ± 3.10 MPa) presented significantly higher bond strength than the apical (3.32 ± 2.30 MPa) (p
