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Etude de la corrosion et de l'usure des pinces à couper les ligatures au cours de la stérilisation

Abstract : The aim of this work was to assess the effect of sterilization on ligature-cutting pliers, and more specifically the corrosion and wear of the plier's cutting edges, while respecting prion inactivation norms. Material included one set of 25 ligature-cutting pliers supplied by three major orthodontic distributors (Dentaurum®, ETM® and RMO®), .010 inch stainless steel orthodontic ligature wire and five disinfecting agents (Ampholysine Plus®, Elusept®, Dy Septi®, Prédolyse®, Dentasept Ultra®). Pliers (chemical composition, Vickers hardness, crystalline network) and disinfecting agents (chemical composition, pH) were initially characterized. Corrosion susceptibility of each single part of the different pliers was then analyzed, and galvanic coupling performed. Electrochemical behaviors of the whole pliers were studied by immersion in the various disinfecting agents. The pliers corrosion and wear were also observed with increasing number of sterilization cycles. Resistance to corrosion during sterilization cycles was found to be satisfactory, all pliers and disinfecting agents included.
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Submitted on : Thursday, March 29, 2018 - 10:26:37 AM
Last modification on : Monday, December 13, 2021 - 1:52:04 PM
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  • HAL Id : tel-01746187, version 1


Olivier George. Etude de la corrosion et de l'usure des pinces à couper les ligatures au cours de la stérilisation. Médecine humaine et pathologie. Université Henri Poincaré - Nancy 1, 2011. Français. ⟨NNT : 2011NAN10032⟩. ⟨tel-01746187⟩



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