Comparison of fracture resistance of pressable metal ceramic custom implant abutments with CAD/CAM commercially fabricated zirconia implant abutments

Kim, Sung-Tae; Kim, Hyeong-Il; Brewer, Jane D.; Monaco, Edward A.

doi:10.1016/s0022-3913(09)60043-3

Cited by 44 publications

(30 citation statements)

References 11 publications

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“…(11) studied an alternative to zirconia abutments obtained through CAD/CAM technique. It is a metal-ceramic abutment containing a biocompatible metal alloy followed by an IPS e.max Press® injection.…”

Section: Resultsmentioning

confidence: 99%

Mechanical resistance of zirconium implant abutments: A review of the literature

Velázquez-Cayón¹,

Vaquero-Aguilar²,

Torrés-Lagares³

et al. 2012

Med Oral

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The increase of aesthetic demands, together with the successful outcome of current implants, has renewed interest in the search for new materials with enough mechanical properties and better aesthetic qualities than the materials customarily used in implanto-prosthetic rehabilitation. Among these materials, zirconium has been used in different types of implants, including prosthetic abutments. The aim of the present review is to analyse current scientific evidence supporting the use of this material for the above mentioned purposes. We carried out the review of the literature published in the last ten years (2000 through 2010) of in vitro trials of dynamic and static loading of zirconium abutments found in the databases of Medline and Cochrane using the key words zirconium abutment, fracture resistance, fracture strength, cyclic loading. Although we have found a wide variability of values among the different studies, abutments show favourable clinical behaviour for the rehabilitation of single implants in the anterior area. Such variability may be explained by the difficulty to simulate daily mastication under in vitro conditions. The clinical evidence, as found in our study, does not recommend the use of implanto-prosthetic zirconium abutments in the molar area. Key words: Zirconium abutment, zirconium implant abutment, zirconia abutment, fracture resistance, fracture strength, cyclic loading.

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Section: Resultsmentioning

confidence: 99%

Mechanical resistance of zirconium implant abutments: A review of the literature

Velázquez-Cayón¹,

Vaquero-Aguilar²,

Torrés-Lagares³

et al. 2012

Med Oral

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“…For obvious biomechanical reasons, slanted straight implants are not ideal, implants with angled abutments are preferred for functional and aesthetic reasons. 20 Porcelain fracture is one of several common failure modes affecting all-ceramic crowns. 21 Like most brittle materials, porcelain has a high compressive and low tensile strength.…”

Section: Discussionmentioning

confidence: 99%

Influence of implant abutment angulations on the fracture resistance of overlaying CAM‐milled zirconia single crowns

Ellakwa¹,

Raj²,

Deeb³

et al. 2011

Australian Dental Journal

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Background: An in vitro study was performed to assess the effect of three implant abutment angulations and three core thicknesses on the fracture resistance of overlaying computer-aided manufacturing (CAM) milled zirconia (Cercon Ò system) single crowns. Methods: Three groups, coded A to C, with different implant abutment angulations (group A ⁄ 0°, group B ⁄ 15°and group C ⁄ 30°angulation) were used to construct 15 crowns for each angulation. Forty-five overlay restorations were milled using the Cercon Ò system with zirconium core thicknesses of 0.4, 0.6 and 0.8 mm using five crowns for each angulation. The final restorations were prepared and stored in distilled water at mouth temperature (37°C) for 24 hours prior to testing. The restorations were cemented using Temp Bond

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“…Así mismo, Att y colaboradores 30 encontraron la falla principalmente en el pilar, en el grupo en el cual se hizo una preparación de las paredes y, posteriormente, un proceso de envejecimiento artificial. Kim y colaboradores, 32 evaluaron la resistencia a la fractura de pilares prefabricados en circona encontrando en este tipo de pilar un patrón de fractura relativamente uniforme, el cual se localizó en la zona cervical del pilar.…”

Section: Discussionunclassified

Comportamiento estático de un pilar de circona sometido envejecimiento artificial. Método de elementos finitos

Suárez

Restrepo

Correa

et al. 2015

Rev Fac Odontol Univ Antioq

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Introduction: some studies on the effect of zirconia aging mention a degree of reduction of zirconia's fracture strength varying from 20 to 40%, while other authors argue that aging does not affect the material's strength. The aim of this study was to evaluate the response of a zirconia abutment subjected to static loads and artificial aging using the finite element method (FEM).Históricamente, los pilares de los implantes dentales han sido fabricados de diferentes metales como aleaciones de titanio y otros metales, proporcionando subestructuras fiables y biocompatibles para las coronas implanto soportadas. Sin embargo, su color gris metalizado a menudo conduce a la decoloración gris o azul de los tejidos blandos circundantes. Asimismo, las recesiones de los tejidos blandos peri-implantares pueden conducir a la exposición de los pilares metálicos, comprometiendo seriamente la apariencia y la estética. 2La introducción de los pilares de cerámica hechos de óxido de aluminio (pilar CerAdapt y ceramic Esthetic; Nobel Biocare) o de óxido de circonio (Pilar Esthetic Zirconium; Nobel Biocare; ZiReal Post; 3i Implant Innovations Inc.; Pilar Zimmer ® Contour Ceramic; Zimmer ® Dental Inc) ofrecen ventajas sobre los pilares de metal, incluyendo mejor estética, translucidez, adaptabilidad y biocompatibilidad. La posibilidad de tener colores similares al diente combinado con una preparación personalizada permite una estética mucogingival superior en restauraciones implantosoportadas unitarias y en prótesis parcial fija.El óxido de circonio (circona ZrO 2 ) tiene una estructura cristalina monoclínica a temperatura ambiente, y una estructura tetragonal y cúbica a temperaturas más altas. El óxido de circonio policristalino, como es utilizado en odontología, contiene cristales tetragonales que están parcialmente estabilizados con óxido de itrio (Y 2 O 3 ).

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Comparison of fracture resistance of pressable metal ceramic custom implant abutments with CAD/CAM commercially fabricated zirconia implant abutments

Cited by 44 publications

References 11 publications

Mechanical resistance of zirconium implant abutments: A review of the literature

Mechanical resistance of zirconium implant abutments: A review of the literature

Influence of implant abutment angulations on the fracture resistance of overlaying CAM‐milled zirconia single crowns

Comportamiento estático de un pilar de circona sometido envejecimiento artificial. Método de elementos finitos

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