Resistencia a la microtensión entre resina precalentada y cemento resinoso dual en discos de resina: estudio in vitro
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Fecha
2024
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Universidad Católica Santo Toribio de Mogrovejo
Resumen
Las restauraciones indirectas son cada vez más usadas debido a la evolución de la odontología restauradora adhesiva, donde los agentes de cementación cobran vital importando, siendo el material de elección el cemento resinoso; sin embargo, la resina compuesta precalentada ha sido también implementada como agente de cementación. Por lo que, el objetivo de este estudio fue comparar la resistencia a la microtensión entre resina precalentada y cemento resinoso dual en discos de resina y el modo de polimerización del adhesivo. Se recolectaron 30 dientes premolares, que fueron cortados hasta exponer dentina coronal y divididos aleatoriamente en 5 grupos (n=10) según el material de cementación: cemento resinoso (CR) y resina precalentada (RP) y, según el modo de polimerización del adhesivo universal: polimerizando el adhesivo antes del asentamiento del disco (1) o después (2). Además, se consideró un grupo control, sin agente cementante. Todos los grupos fueron evaluados con una máquina de ensayo universal para medir la resistencia a la microtensión. Los datos obtenidos fueron analizados mediante el software estadístico SPSS, resultando diferencias estadísticamente significativas (p< 0,05)
entre los grupos al comprar los cementos resinosos duales con la resina precalentada, obteniendo valores más altos en CR; mientras que no se encontraron diferencias estadísticamente significativas en el modo de polimerización entre los grupos donde se utilizó el mismo agente de cementación. Se concluye que, el cemento resinoso tiene mejores resultados respecto a la resistencia a la microtensión que la resina precalentada y, el modo de polimerización no influye en el resultado.
Indirect restorations are increasingly used due to the evolution of adhesive restorative dentistry, where cementation agents become vitally important, with resinous cement being the material of choice; However, preheated composite resin has also been implemented as a luting agent. Therefore, the objective of this study was to compare the microtension resistance between preheated resin and dual resin cement in resin discs and the mode of polymerization of the adhesive. 30 premolar teeth were collected, which were cut until coronal dentine was exposed and randomly divided into 5 groups (n=10) according to the cementation material: resinous cement (CR) and preheated resin (RP) and, according to the mode of polymerization of the adhesive universal: polymerizing the adhesive before setting the disc (1) or after (2). In addition, a control group was demonstrated, without cementing agent. All groups were tested with a universal testing machine to measure microtension resistance. The data obtained were analyzed using the SPSS statistical software, resulting in statistically significant differences (p < 0.05) between the groups when purchasing the dual resin cements with the preheated resin, obtaining higher values in CR; While no statistically significant differences were found in the mode of polymerization between the groups where the same cementing agent was used. It is concluded that the resinous cement has better results regarding resistance to microtension than the preheated resin and the polymerization mode does not influence the result.
Indirect restorations are increasingly used due to the evolution of adhesive restorative dentistry, where cementation agents become vitally important, with resinous cement being the material of choice; However, preheated composite resin has also been implemented as a luting agent. Therefore, the objective of this study was to compare the microtension resistance between preheated resin and dual resin cement in resin discs and the mode of polymerization of the adhesive. 30 premolar teeth were collected, which were cut until coronal dentine was exposed and randomly divided into 5 groups (n=10) according to the cementation material: resinous cement (CR) and preheated resin (RP) and, according to the mode of polymerization of the adhesive universal: polymerizing the adhesive before setting the disc (1) or after (2). In addition, a control group was demonstrated, without cementing agent. All groups were tested with a universal testing machine to measure microtension resistance. The data obtained were analyzed using the SPSS statistical software, resulting in statistically significant differences (p < 0.05) between the groups when purchasing the dual resin cements with the preheated resin, obtaining higher values in CR; While no statistically significant differences were found in the mode of polymerization between the groups where the same cementing agent was used. It is concluded that the resinous cement has better results regarding resistance to microtension than the preheated resin and the polymerization mode does not influence the result.
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Palabras clave
Cemento resinoso, Resina compuesta, Adhesión dentinaria, Resin cements, Composite resins, Dentin bonding
Citación
Zuñiga Y. Resistencia a la microtensión entre resina precalentada y cemento resinoso dual en discos de resina: estudio in vitro [Tesis de segunda especialidad]. Chiclayo: Universidad Católica Santo Toribio de Mogrovejo; 2024. 29 p. Disponible en:
