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      Comparación histológica e inmunohistoquímica de la mucosa periimplantaria localizada alrededor de los pilares rectos estéticos convencionales y de los nuevos pilares slim: ensayo clínico multicéntrico aleatorizado a boca partida Translated title: Histological and immunohistochemical comparison of the peri-implant mucosa located around of conventional aesthetic straight abutments and the new slim abutments: clinical trial multicenter randomized split-mouth

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          Abstract

          RESUMEN Para garantizar el éxito de los implantes dentales, es necesario conseguir la formación de una adecuada mucosa periimplantaria que permita el rápido sellado biológico periimplantario, que es crucial para el éxito del implante, minimizando la capacidad invasiva de microorganismos a través del surco gingival. Por ello, la adhesión del epitelio y el tejido conectivo a la superficie de los pilares protéticos, es muy importante para la viabilidad de un implante dental. En este sentido, en los últimos años se ha modificado la morfología de los pilares protéticos, tanto a nivel del tamaño del cuerpo del pilar (diámetro), como en el cuello de estos, llegando incluso a incorporar surcos para mejorar la salud del tejido periimplantario. Sin embargo, el diseño de pilares estrechos cuyo diámetro a nivel de la conexión es menor que el de la plataforma del implante, comúnmente conocidos como platform switching (PS), parece ser el que mejor sellado mucoso proporcionaría al implante, al reducir el componente vertical del ancho biológico, y crear una mayor distancia horizontal. En la actualidad, el desconocimiento de cómo la modificación del diseño geométrico de un pilar protético, con un cambio en el diámetro del cuello tipo PS, puede influir en la formación de una adecuada mucosa periimplantaria; nos motivó al desarrollo de este proyecto de investigación. En el presente ensayo clínico, pretendemos comparar la composición, distribución y estructura de los tejidos peri-implantarios alrededor de los pilares protésicos intermedios con geometría axial recta (control) y cóncava del tipo PS (test) del fabricante Galimplant® (Galimplant S.L., Sarria, España). El objetivo es estudiar qué diseño de pilares obtiene un mejor sellado biológico desde el punto de vista clínico e histomorfométrico.

          Translated abstract

          ABSTRACT To guarantee the success of dental implants, it is necessary to achieve the formation of an adequate peri-implant mucosa that allows rapid peri-implant biological sealing, which is crucial for the success of the implant, minimizing the invasive capacity of microorganisms through the gingival sulcus. Therefore, the adhesion of the epithelium and connective tissue to the surface of the prosthetic abutments is very important for the viability of a dental implant. In this sense, in recent years the morphology of prosthetic abutments has been modified, both in terms of the size of the abutment body (diameter) and in the neck of these, even incorporating grooves to improve the health of the peri-implant tissue. However, the design of narrow pillars whose diameter at the connection level is less than that of the implant platform, commonly known as platform switching (PS), seems to be the one that would provide the best mucosal seal to the implant, by reducing the vertical component. of the biological width, and create a greater horizontal distance. At present, the lack of knowledge about how the modification of the geometric design of a prosthetic abutment, with a change in the diameter of the PS-type neck, can influence the formation of an adequate peri-implant mucosa; motivated us to develop this research project. In this clinical trial, we intend to compare the composition, distribution and structure of the peri-implant tissues around the intermediate prosthetic posts with straight (control) and concave axial geometry of the PS type (test) from the manufacturer Galimplant® (Galimplant S.L., Sarria, Spain). The objective is to study which abutment design obtains a better biological seal from the clinical and histomorphometric point of view.

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          Most cited references33

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          Inflammation in wound repair: molecular and cellular mechanisms.

          In post-natal life the inflammatory response is an inevitable consequence of tissue injury. Experimental studies established the dogma that inflammation is essential to the establishment of cutaneous homeostasis following injury, and in recent years information about specific subsets of inflammatory cell lineages and the cytokine network orchestrating inflammation associated with tissue repair has increased. Recently, this dogma has been challenged, and reports have raised questions on the validity of the essential prerequisite of inflammation for efficient tissue repair. Indeed, in experimental models of repair, inflammation has been shown to delay healing and to result in increased scarring. Furthermore, chronic inflammation, a hallmark of the non-healing wound, predisposes tissue to cancer development. Thus, a more detailed understanding in mechanisms controlling the inflammatory response during repair and how inflammation directs the outcome of the healing process will serve as a significant milestone in the therapy of pathological tissue repair. In this paper, we review cellular and molecular mechanisms controlling inflammation in cutaneous tissue repair and provide a rationale for targeting the inflammatory phase in order to modulate the outcome of the healing response.
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              Wound repair: role of immune-epithelial interactions.

              The epithelium serves as a highly selective barrier at mucosal surfaces. Upon injury, epithelial wound closure is orchestrated by a series of events that emanate from the epithelium itself as well as by the temporal recruitment of immune cells into the wound bed. Epithelial cells adjoining the wound flatten out, migrate, and proliferate to rapidly cover denuded surfaces and re-establish mucosal homeostasis. This process is highly regulated by proteins and lipids, proresolving mediators such as Annexin A1 protein and resolvins released into the epithelial milieu by the epithelium itself and infiltrating innate immune cells including neutrophils and macrophages. Failure to achieve these finely tuned processes is observed in chronic inflammatory diseases that are associated with non-healing wounds. An improved understanding of mechanisms that mediate repair is important in the development of therapeutics aimed to promote mucosal wound repair.
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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
                September 2023
                : 39
                : 3
                : 32-40
                Affiliations
                [2] Galicia orgnameUniversidad de Santiago de Compostela Spain
                [3] orgnameUniversidad de Valencia
                [1] Murcia orgnameUniversidad de Murcia Spain
                [4] Castilla y León orgnameUniversidad de Salamanca Spain
                Article
                S0213-12852023000300005 S0213-1285(23)03900300005
                3c0d0ead-43d1-4617-9cf1-7861ba28f8c8

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

                History
                : March 2023
                : January 2023
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 34, Pages: 9
                Product

                SciELO Spain

                Categories
                Artículos

                Tejidos periimplantarios,concave axial geometry,straight axial geometry,transepithelial abutment,mucosal sealing,Peri-implant tissues,geometría axial cóncava,geometría axial recta,pilar transepitelial,sellado mucoso

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