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      Influencia de diferentes intensidades de luz en la resistencia de unión de un sistema adhesivo utilizando un colorante fluorescente para su observación Translated title: Influence of different light intensities on the bond strength of an adhesive system using a fluorescent dye for its observation

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          Abstract

          El objetivo de este trabajo fue el de utilizar un colorante fluorescente y microscopio CLSM para observar la influencia de diferentes intensidades de luz en la resistencia de unión de un sistema adhesivo. Para tal fin, fueron creadas superficies planas en la dentina de 16 dientes terceros molares y divididos en 4 grupos: Grupo G1 - Foto-activador halógeno - KM-200R®; Grupo G2 - Foto-activador LED - Ultraled®; Grupo G3 - Foto-activador LED - UltraLume®LED5 y Grupo G4 - Foto-activador LED - Biolux Single V®. Para todos los grupos el procedimiento restaurador fue realizado utilizando el adhesivo Single Bond® pigmentado con rodamina B y la resina compuesta InTen-S®. Seguidamente, cada conjunto fue cortado, resultando en espécimen de aproximadamente 1 mm² de sección transversal, que luego fue seleccionado y llevado al test de micro-tracción para finalmente ser examinado con un microscopio digital y de CLSM. Los resultados mostraron luego de la evaluación estadística que el grupo 2 obtuvo valores medios de resistencia adhesiva significativamente menores que los demás grupos, que fueron semejantes entre si. Con relación al tipo de fractura, hubo diferencia entre los grupos G1 / G2 y entre los grupos G2 / G4; entre los otros grupos no hubo evidencia de diferencias significativas. Con esos resultados concluimos que la utilización de pigmentos fluorescentes y CLSM demostró ser una técnica simple y no destructiva, así también como la existencia de evidencias de que la intensidad de la luz foto-activadora influenció en la resistencia de unión en dentina

          Translated abstract

          The purpose of this study was to use a fluorescent dye and CLSM microscope to observe the effect of different light intensities on dentin tensile bond strength. Flat dentin surfaces were created on 16 intact human third molars and divided in 4 groups: Group G1 - halogen - KM -200R®; Group G2 - LED - Ultraled®; Group G3 - LED - UltraLume LED5® and Group G4 - LED - Biolux Single V®. For all the groups, the restoration procedure used Single Bond® adhesive, mixed with rodamin B and InTen-S® composite resin. Then, they were cut on serial sections to obtain 1 mm² area and submitted to micro tensile test and after words, the fractures were analyzed with a digital microscope and CLSM. The statistical analysis showed that all in all groups, except Group G2, which had a significant smaller tensile bond strength ratio. The fracture mode analysis showed that there were significant differences when comparing groups G1 / G2, and G2 / G4. There is no evidence of relevant differences among the other groups. With these results, we conclude that the use of fluorescent dye and CLSM demonstrated to be a simple and nondestructive technique, and that there are evidences that light intensities influenced the dentine tensile

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          Candela‐class high‐brightness InGaN/AlGaN double‐heterostructure blue‐light‐emitting diodes

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            • Record: found
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            Depth of cure and compressive strength of dental composites cured with blue light emitting diodes (LEDs)

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              • Article: not found

              Applications of confocal scanning optical microscopy to dentistry.

              Confocal optical microscopy is now a well recognised technique in the fields of biological and materials science. This type of light microscope can be considered as being midway between optical and electron microscopy. Confocal or scanning optical microscopes can make high resolution, thin, optical sections within semitransparent samples such as biological tissues. Surface images of samples can be produced which are similar in character to those of the SEM, but without many of the problems of specimen preparation. The improved resolution and removal of out-of-focus blur allows much more information to be gained from fluorescence microscopy techniques, with the images capable of 3-D reconstruction of the sample. There are basically two types of confocal optical microscope: the laser scanning type (CLSM) and the real-time direct view of tandem scanning microscopes (TSM). The former are best suited to immunofluorescence microscopy, whilst the latter are more appropriate for high-speed reflection imaging, having originally been developed for in vivo microscopy.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                aov
                Acta Odontológica Venezolana
                Acta odontol. venez
                Facultad de Odontología -UCV (Caracas )
                0001-6365
                March 2010
                : 48
                : 1
                : 45-50
                Affiliations
                [1 ] FOAr / UNESP
                [2 ] FOAr / UNESP
                Article
                S0001-63652010000100008
                0920258a-8364-47ab-aed7-fb026958fb44

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Venezuela

                Self URI (journal page): http://www.scielo.org.ve/scielo.php?script=sci_serial&pid=0001-6365&lng=en
                Categories
                DENTISTRY, ORAL SURGERY & MEDICINE

                Dentistry
                Dentin-Bonding Agents,Tensile Strength,Microscopy,Confocal,Agentes de recubrimiento dental adhesivo,resistencia a la tracción,Microscopia Confocal

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