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      El efecto de la fatiga cíclica sobre los pilares de implantes dentales Translated title: The effect of the cyclic fatigue in dental implant abutments

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          Abstract

          RESUMEN Introducción: La conexión implante-pilar ha sido sugerida como crucial para el éxito a largo plazo de las restauraciónes sobre implantes oseointegración y para prevenir futuras complicaciónes biológicas y mecánicas. El objetivo de este estudio fué evaluar la influencia del test de fatiga cíclica en el comportamiento de las conexiones internas implante-pilar. Métodos: 36 pilares mutiposición de implantes de titanio de conexión interna fueron divididos en 2 grupos: 18 pilares slim o curvos y 10 pilares rectos con diferentes alturas. Los pilares fueron apretados con una llave de torque a 30 Ncm. Una carga cíclica entre 175 N y 100 N fué aplicada con 30º de inclinación axial al sistema de implantes durante 5 millones de ciclos. Resultados: Los tests biomecánicos muestran una fractura de los implantes y de los tornillos de retención a una carga límite de 100 N de los pilares slim curvos y de 130 N en los pilares rectos. La fracturas aparecieron en la zona de unión entre el cuello y el cuerpo del implante y en los tornillos protéscios. No se han encontrado fracturas en los pilares multiposición. Conclusiones: Este estudio indican que los tests de fatiga cíclica son importantes para analizar la respuesta biomecánica de los diferentes pilares en las conexiones implante-pilar de los sistemas de implantes.

          Translated abstract

          ABSTRACT Introduction: The connection implant-abutment has been suggested to be crucial for the long-term success of implant restorations and to prevent future biological and mechanic complications. The aim of this study was to evaluate the influence of fatigue cyclic test in the behavior of internal connection implant-abutments. Methods: Thirty six titanium abutments of internal connection implants were divided in two groups: 18 slim and 18 right multiunit abutments with different length. Abutments were tightened to 30 Ncm with a torque controller. A cyclic load between 175 N and 100 N according to different implant abutments at a 30-degree angle to the long axis was applied to the implants for a 5 million cycles. Results: Biomechanical testing showed implant and screw retention fracture in a limit load of 100 N of slim implant abutments and 130 N of right implant abutments. Fracture cracks were located in the area between neck and body of implants and screw retention. No abutment fractures were found. Conclusions: This study indicate that fatigue cyclic test are very important to analize the biomechanical behavior of different abutments in connection implant-abutment of implants systems.

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          Implant–abutment connections: influence of the design on the microgap and their fatigue and fracture behavior of dental implants

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            Is the internal connection more efficient than external connection in mechanical, biological, and esthetical point of views? A systematic review.

            This systematic review aimed to evaluate if the internal connection is more efficient than the external connection and its associated influencing factors.
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              Effect of dental implant diameter on fatigue performance. Part I: mechanical behavior.

              The purpose of this study was to evaluate the effect of the implants' diameter on the mechanical function and load-fatigue performance of dental implants.
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                Author and article information

                Journal
                odonto
                Avances en Odontoestomatología
                Av Odontoestomatol
                Ediciones Avances, S.L. (Madrid, Madrid, Spain )
                0213-1285
                2340-3152
                August 2020
                : 36
                : 2
                : 89-97
                Affiliations
                [2] Sevilla Andalucía orgnameUniversidad de Sevilla orgdiv1Facultad de Odontología Spain
                [3] Sevilla Andalucía orgnameUniversidad de Sevilla orgdiv1Escuela Superior de Ingenieros Industriales orgdiv2Departamento de Ingeniería Mecánica Spain
                [4] Sevilla Andalucía orgnameUniversidad de Sevilla orgdiv1Facultad de Odontología Spain
                [1] Sevilla Andalucía orgnameUniversidad de Sevilla Spain
                Article
                S0213-12852020000200005 S0213-1285(20)03600200005
                5ac461c3-0919-4d3f-a4bd-18efa8fd5a40

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 International License.

                History
                : 21 March 2020
                : 14 March 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 30, Pages: 9
                Product

                SciELO Spain

                Categories
                Artículos

                biomecánica,implant dentistry,cyclic loading,implantología oral,implant-abutment connection,Implantes dentales,Dental implants,conexión implant-pilar,fatigue test,test de fatiga,carga cíclica,biomechanics

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