Modelo de conductancia hidráulica de la dentina humana ex vivo

Hevia, J María del Pilar; Fresno, C.; Martín, Javier; Moncada, G; Letelier, Claudia; Oliveira, Osmir Batista de; Fernandez, E

doi:10.1016/s0718-5391(13)70132-0

Cited by 3 publications

(6 citation statements)

References 17 publications

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“…In this paper was tested under a known model (16) the difference in hydraulic conductance by gender operator and/or the mode of application of a dental adhesive. While there were no differences in conductance according to the gender of the operator, differences were seen when considering the application mode.…”

Section: Discussionmentioning

confidence: 99%

“…This water reservoir was connected by a silicone tube to a horizontally positioned graduated capillary tube in which an air bubble was included. The capillary tube was distally connected by a silicone tube to the chamber where the dentine disc under study was placed and sealed by silicone rings (16) . Flow rate was determined recording the initial position of the air bubble and its final position after a period of 20 minutes.…”

Section: Methodsmentioning

confidence: 99%

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Original Articles

Martín

Bersezio

Vildósola

et al. 2018

Rev. Clin. Periodoncia Implantol. Rehabil. Oral

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aim: To compare the hydraulic conductance of human dentin disks which have been treated with an adhesive by operators of different genders and by active or passive modes of application. 60 third molars of healthy adults were included in resin blocks. These were cut to obtain 60 dentin disks of 1mm +/-0.1 mm thick. Group 1 and 2, the adhesive was applied by 15 male operators passively (group 1) and vigorously (group 2). Groups 3 and 4, the adhesive was applied by 15 female operators passively (group 3) and vigorously (group 4). The flow rate was measured with a diffusion chamber and the hydraulic conductance of the disks was determined. results: Mean for hydraulic conductance of each group was: 1 (0.01752), 2 (0.00355), 3 (0.01215), 4 (0.00877) in μl/minxcm2. There was statistically significant difference in the hydraulic conductance between experimental and control groups. There was no difference in dentin hydraulic conductance between genders. There was statistically significant difference in hydraulic conductance between the different modes of application. There was a moderate association between the pressure exerted when applying the adhesive and the values of dentin hydraulic conductance in vitro

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Original Articles

Martín

Bersezio

Vildósola

et al. 2018

Rev. Clin. Periodoncia Implantol. Rehabil. Oral

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“…14,15 It was calculated with a statistical power of 0.8, considering a statistical difference between groups with an alpha of 0.05 resulTs Figure 1 visually demonstrates and compares the mean hydraulic conductance of the experimental groups with different passive evaporation times. Table 1 displays the control group when compared to the experimental groups, based on results obtained from the ANOVA and post hoc Tukey tests (ρ < 0.05).…”

Section: Sample Sizementioning

confidence: 99%

Influence of the Passive Evaporation of adhesive on the conductance of dentin

Bersezio

Toledo

Letelier

et al. 2017

Rev. Clin. Periodoncia Implantol. Rehabil. Oral

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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% orthophosphoric 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•cm-2•min-1cm•H2O-1. For comparisons between groups, ANOVA and post hoc Tukey (ρ<0.05) tests were applied, resulting in a statistically significant difference between the GC group and all experimental groups (ρ <0.05). An influence of solvent passive evaporation thereby reducing hydraulic conductance in the experimental groups, was detected. key wordsPassive evaporation, adhesion, hydraulic conductance.

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“…El capilar se conectó distalmente a una cámara en donde se fijan los especímenes en estudio (discos de dentina sellados por medio de anillos de silicona) por medio de un tubo de silicona 24 . Para determinar la permeabilidad (conductabilidad hidráulica de los especímenes), cada segmento dentario fue incorporado a una cámara conectada a una columna de agua destilada (20 cm), conectada por medio de tubos de silicona; la tasa de flujo del fluido a través del disco de dentina fue medido a través de una pipeta milimetrada en la que se registró el tiempo del movimiento de una burbuja de aire localizada en el interior del capilar de vidrio (pipeta milimetrada, diá-metro) lo que permite calcular el flujo hidráulico ( fig.…”

Section: Intervenciones Y Medición De Conductabilidadunclassified

“…De acuerdo con estudios previos 24 , esperamos una distribución anormal, por lo que se realizarán test de Krustal-Wallis para verificar la distribución de los grupos; y el test de Mann-Whitney para llevar a cabo las comparaciones entre los grupos. El software utilizado para el análisis fue el SPSS 21.0 (New York City, NY, Estados Unidos).…”

Section: Análisis Estadísticounclassified

Influencia de 2 dentífricos con agentes desensibilizantes en la conductabilidad hidráulica dentinaria

Godoy

et al. 2014

Revista Clínica de Periodoncia, Implantología y Rehabilitación

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Modelo de conductancia hidráulica de la dentina humana ex vivo

Cited by 3 publications

References 17 publications

Original Articles

Original Articles

Influence of the Passive Evaporation of adhesive on the conductance of dentin

Influencia de 2 dentífricos con agentes desensibilizantes en la conductabilidad hidráulica dentinaria

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