Publication: Estudio comparativo de la precisión de ajuste de pilares CAD/CAM mecanizados estándar y sinterizados láser sobre implantes con conexión externa e interna
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2018-10-22
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Universidad Complutense de Madrid
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Abstract
La prótesis fija sobre implantes es una alternativa restauradora con una demanda creciente debido a los beneficios psicológicos y funcionales que aporta a los pacientes. En el momento actual el desarrollo de la tecnología en cuanto a la implantoprótesis se refiere, va dirigido a avances del sistema de implantes, del sistema de conexión pilar-implante, de los materiales de fabricación y del tipo de procesado. Todo ello para conseguir un mejor ajuste pasivo y una menor discrepancia entre sus partes. Su fallo ocasionaría la no osteointegración de los implantes, pérdida ósea y una posible fractura de la prótesis, difíciles de subsanar en pasos posteriores. Por todo ello este estudio propone el análisis del comportamiento, en lo que a ajuste implante-pilar se refiere, de 4 sistemas de implantes, 2 conexiones, y 2 tipos de pilares confeccionados con diferentes materiales y diferentes tecnologías CAD/CAM. HIPÓTESIS DE TRABAJO: Uno de los principales objetivos en implantoprótesis es garantizar la longevidad de las restauraciones. El ajuste pilar-implante está relacionado con el pronóstico y la supervivencia de las mismas; En el presente estudio de investigación las hipótesis nulas (Ho) planteadas fueron que no existirían diferencias en el ajuste pilar-implante entre cuatros sistemas de implantes, que no existirían diferencias en el ajuste entre la conexión externa e interna y que no existirían diferencias en el ajuste entre dos tipos de pilares (mecanizados estándar y sinterizado láser)...
The fixed implant prosthesis is a restorative alternative with a growing demand due to the psychological and functional benefits to the patients. Nowadays, the development of the technology, regarding implant prosthesis, is aimed to progress in the implant systems, the abutment/implant connection system, the materials and the type of manufacturing. All previous, to achieve a better passive fit and less discrepancy between its parts. Failure to do so, would result in non-osseointegration of the implants, bone loss and possible fracture of the prosthesis, that it would be difficult to repair in later steps. Therefore, this study proposes the analysis of the implant-abutment connection fit, of 4 implant systems, 2 platform connections, and 2 different abutment materials and different CAD/CAM technologies. HYPOTHESIS: One of the main goals in implant prosthesis is to ensure the longevity of the restorations. The abutment-implant fit is related to the prognosis and the survival of them In the present study, the null hypotheses (Ho) proposed were that there would be no differences in the abutment-implant fit among four implant systems, that there would be no differences in the fit between the external and internal implant connection and that there would be no differences in the misfit between two different abutments (standard machining and laser sintering)...
The fixed implant prosthesis is a restorative alternative with a growing demand due to the psychological and functional benefits to the patients. Nowadays, the development of the technology, regarding implant prosthesis, is aimed to progress in the implant systems, the abutment/implant connection system, the materials and the type of manufacturing. All previous, to achieve a better passive fit and less discrepancy between its parts. Failure to do so, would result in non-osseointegration of the implants, bone loss and possible fracture of the prosthesis, that it would be difficult to repair in later steps. Therefore, this study proposes the analysis of the implant-abutment connection fit, of 4 implant systems, 2 platform connections, and 2 different abutment materials and different CAD/CAM technologies. HYPOTHESIS: One of the main goals in implant prosthesis is to ensure the longevity of the restorations. The abutment-implant fit is related to the prognosis and the survival of them In the present study, the null hypotheses (Ho) proposed were that there would be no differences in the abutment-implant fit among four implant systems, that there would be no differences in the fit between the external and internal implant connection and that there would be no differences in the misfit between two different abutments (standard machining and laser sintering)...
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Tesis inédita de la Universidad Complutense de Madrid de la Facultad de Odontología del Departamento de Estomatología I, leída el 8 de Julio de 2017.