Análisis mediante microscopía de la interfase de cementación de coronas procera
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Archivos
Fecha
2008
Autores
Profesor/a Guía
Facultad/escuela
Idioma
es
Título de la revista
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Editor
Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
Debido a la alta demanda estética por parte de los pacientes, se ha producido un aumento en el
uso de coronas libres de metal. Sin embargo, el éxito de éstas depende en gran parte de la
cementación a la estructura dentaria. Es por este motivo que se han ido creando nuevos agentes
cementantes buscando mejorar las propiedades de estos. El objetivo de este estudio es comparar
las interfases de cementación entre un cemento de vidrio ionómero, un cemento de resina
convencional y una cemento de resina autograbante.
Para esto, se utilizaron 3 piezas dentarias a las cuales se les realizó un tallado para prótesis fija.
Luego estas fueron cementadas con los distintos cementos en estudio, para posteriormente
realizar cortes en sentido longitudinal de éstos.
Finalmente, se procedió a observar los cortes a través de microscopía óptica, y así evaluar las
interfases de cementación, donde se comparó las interfases producidas entre el agente
cementante y la dentina, y el núcleo de zirconio.
Los resultados no mostraron diferencias estadísticamente significativas entre las interfases. Pero si
se apreciaron claras diferencias de uniformidad y porosidades entre los cementos de resina con el
cemento de vidrio ionómero.
Due to the number of aesthetic treatments the patients demand, there's been an increase in the use of metal-free crowns. However, the success of such implants depends hugely on the right cementation of the dental structure. This has motivated the creation of new luting agents that should improve the properties of this kind of material. This study is directed to compare the interface of cementation between glass-ionomer cement, one of conventional resin cement y another of self-adhesive resin cement. Three dental pieces were used. Each tooth was prepared for a fixed prosthesis. After this, the pieces were cemented using the three different types of cement studied, later longitudinal cuts were performed in them. Finally, the cuts were observed using the optic microscope; this step enabled the evaluation of the cementation interfaces produced between the luting agent and the dentin, and the zircon core. The observations did not show statistically significant differences between the interfaces, but they did show relevant differences in terms of uniformity and porosity between resin and glass ionomer cement.
Due to the number of aesthetic treatments the patients demand, there's been an increase in the use of metal-free crowns. However, the success of such implants depends hugely on the right cementation of the dental structure. This has motivated the creation of new luting agents that should improve the properties of this kind of material. This study is directed to compare the interface of cementation between glass-ionomer cement, one of conventional resin cement y another of self-adhesive resin cement. Three dental pieces were used. Each tooth was prepared for a fixed prosthesis. After this, the pieces were cemented using the three different types of cement studied, later longitudinal cuts were performed in them. Finally, the cuts were observed using the optic microscope; this step enabled the evaluation of the cementation interfaces produced between the luting agent and the dentin, and the zircon core. The observations did not show statistically significant differences between the interfaces, but they did show relevant differences in terms of uniformity and porosity between resin and glass ionomer cement.
Notas
Tesis (Cirujano Dentista, Especialización en Clínica Integral del Adulto)
Palabras clave
Coronas (Odontología), Cemento (Odontología), Materiales Dentales