Marginal Adaptation and Microleakage comparison between two Zirconia Oxide systems with the same cement

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Adriana Juárez García
Federico Barceló Santana
Enrique Rios Szalay

Resumen

Goal: To compare the marginal fit and micro-leakage of Lava™ and Zirkon zahn® copings using the same cement as adhesive. Materials and Methods: Twenty extracted superior premolars were divided into two groups. Teeth in the first group were prepared to receive Lava™ copings, while teeth in the second group were prepared for Zirkon zahn® copings. Copings were prepared following each system´s standard procedure. Marginal fit was measured in micrometers in eight different regions, both before and after being bound with RelyX™ U100 cement. Once thermocycled, samples were soaked in 2% fuchsin dye solution and buccolingually sliced, microleakage was measured, both in the vestibular and palatal regions. Results: A statistically significant difference in marginal fit between the two zirconia systems was found. Lava™ registered the best adaptation values: 19.7µm before cementation and 15.0µm after, while Zirkon zahn® reported marginal fit values of 28.1µm (before) and 22.8µm (after cementation). In contrast, we found no significant difference in microleakage: Lava™ averaged 314.2µm and Zirkon zahn® 319.8µm. Conclusion: Lava™ registered better marginal fit values than Zirkon zahn®, but no significant difference in microleakage. Key Words: Marginal fit, microleakage, zirconia, CAD-CAM.

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Cómo citar
Juárez García, A., Barceló Santana, F., & Rios Szalay, E. (2011). Marginal Adaptation and Microleakage comparison between two Zirconia Oxide systems with the same cement. Revista Odontológica Mexicana Órgano Oficial De La Facultad De Odontología UNAM, 15(2). Recuperado a partir de https://revistas.unam.mx/index.php/rom/article/view/25825
Biografía del autor/a

Adriana Juárez García

Coordinación de publicaciones.

Editora de la Revista Ódontológica Mexicana. Órgano Oficial de la Facultad de Odontología, UNAM.