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The implant-abutment connection: influence on marginal bone stability 1 September 2009

Authors: Hadi Antoun, Doris Uettwiller
Journal and references: Journal de Parodontologie & d’Implantologie Orale-Vol.28 N°3

Bone loss from around implants after their placement is a physiological remodelling process that we are still unable to control.Several hypotheses have been proposed regarding the causes of the bone loss. This paper investigates the influence of various parameters on marginal bone loss at the implant-abutment connection by a literature review. The type of connection between the implant and the abutment defines a larger or a smaller space that can harbour bacteria associated with inflammation. Also, as a mechanical component, it has implications for stability.The use of an abutment of smaller diameter than the implant collar (platform switching), should allow a reduction of the marginal bone loss. The presence of micro-threads at the implant collar together with a rough surface seems to improve the distribution of the masticatory stresses and to contribute significantly to bone stability. The use of biocompatible materials is also an important element in the maintenance of bone levels, as is the prosthetic protocol used.The evolution of the macro- and micro-geometry of current implants and compliance with the protocol should improve our understanding and the control of bone loss in the future.

Read the complete article: here

Posted on 01/09/2009 in « Other publications »
Last update : 24/08/2016 00:12
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