El actual estudio evaluó la microdureza superficial in vitro de dos materiales restauradores, una resina de nanorelleno( Z350XT 3M) y una resina compuesta posterior(P60 3M).
Se elaboraron 15 cilindros de 4mm de diámetro y 2mm de altura de cada uno de los materiales en estudio. La microdureza superficial fue medida en Vickers(vk) y para ello se utilizo el test de microdureza de Vickers, usando un microdurómetro que tiene un diamante identador, aplicando una carga de 100g por 15 segundos.
Para determinar si hubo una varianza estadística significativa entre las medidas de microdureza de los materiales evaluados, se utilizó la prueba T-Student y para hacer una comparación entre las variaciones de los dos materiales, se utilizo la prueba de Anova.
La resina P60 presento mayor promedio de microdureza superficial que la resina de nanorelleno Z350.Concluyéndose que hubo diferencia significativa entre las microdurezas superficiales de los dos materiales evaluados. / The present study evaluated in vitro superficial microhardness two restorative materials nanofiller resin (Z350XT 3M) and a rear composite (3M P60).
Fifteen cylinders were prepared 4mm 2mm diameter and height of each of the materials under study. The surface microhardness was measured in Vickers (vk) and it was used for the Vickers microhardness test, using a microhardness tester having a diamond identador, applying a load of 100 g for 15 seconds.
To determine whether there was a statistically significant variance between measurements of microhardness of the materials tested, we used the Student t-test and to make a comparison between the variations of the two materials, we used the ANOVA test. The P60 resin had higher average surface microhardness that Z350.The conclusion is there was significant difference between the surface microhardness of the two materials evaluated.
Keywords: microharness, composites / Tesis
| Identifer | oai:union.ndltd.org:Cybertesis/oai:cybertesis.unmsm.edu.pe:cybertesis/4018 |
| Date | January 2012 |
| Creators | Loyola Monterroso, Gina Melisa |
| Contributors | Ayala de la Vega, Gerardo Rubén |
| Publisher | Universidad Nacional Mayor de San Marcos |
| Source Sets | Universidad Nacional Mayor de San Marcos - SISBIB PERU |
| Language | Spanish |
| Detected Language | Spanish |
| Type | info:eu-repo/semantics/bachelorThesis |
| Format | application/pdf |
| Source | Repositorio de Tesis - UNMSM, Universidad Nacional Mayor de San Marcos |
| Rights | info:eu-repo/semantics/openAccess |
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