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  • Sociedad de Periodoncia de Chile. Sociedad de Implantología Oral de Chile. Sociedad de Prótesis y Rehabilitación Oral de Chile
  • International journal of interdisciplinary dentistry
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  • Sociedad de Periodoncia de Chile. Sociedad de Implantología Oral de Chile. Sociedad de Prótesis y Rehabilitación Oral de Chile
  • International journal of interdisciplinary dentistry
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Influence of the Passive Evaporation of adhesive on the conductance of dentin

Author
Bersezio,Cristian

Toledo,Sebastian

Letelier,Claudia

Werner,Andrea

Oliveira Jr,Osmir Batista

Haydar,Ziyad S

Martín,Javier

Fernández,Eduardo

Full text
https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0719-01072017000100038
Abstract
ABSTRACT: Aim: Determine the influence of time of passive evaporation of the solvent in a universal adhesive on the hydraulic conductance and permeability of dentin in an ex vivo human model. Henceforth, 60 healthy non-occluding third molars, indicated for therapeutic extraction/removal, of informed and consented patients aged between 18 and 30 years, were used here in. First, extracted teeth were incorporated into epoxy resin blocks and then dentin disks (1mm +/- 0.1 mm thick) were prepared. Dentin was acid etched with 35% ortho-phosphoric acid for 15 seconds in order to remove the smear layer and obtain permeable dentin. Samples were then randomized and divided into 5 groups (n=12). A Single Bond Universal adhesive layer with different time of passive evaporation of the solvent was then applied: GC=10 seconds, G1=30 seconds, G2=60 seconds, G3=300 seconds and G4=50 minutes. Finally, the flow rate was measured using a diffusion chamber, a model previously proposed by Pashley et al. Results: The obtained hydraulic conductance averages were as follows: GC=0.00052, G1=0.00018, G2=0.00006, G3=0.00005, G4=0.00005 expressed in uL&#8226;cm-2&#8226;min-1cm&#8226;H2O-1. For comparisons between groups, ANOVA and post hoc Tukey (&#961;<0.05) tests were applied, resulting in a statistically significant difference between the GC group and all experimental groups (&#961; <0.05). An influence of solvent passive evaporation thereby reducing hydraulic conductance in the experimental groups, was detected.
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Artes, Arquitectura y UrbanismoCiencias Agrarias, Forestales y VeterinariasCiencias Exactas y NaturalesCiencias SocialesDerechoEconomía y AdministraciónFilosofía y HumanidadesIngenieríaMedicinaMultidisciplinarias
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Universidad de ChileUniversidad Católica de ChileUniversidad de Santiago de ChileUniversidad de ConcepciónUniversidad Austral de ChileUniversidad Católica de ValparaísoUniversidad del Bio BioUniversidad de ValparaísoUniversidad Católica del Nortemore

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