Lemons J E, Lucas L C, Johansson B I
Departments of Biomaterials and Surgery, University of Alabama, Birmingham.
Implant Dent. 1992 Summer;1(2):107-12. doi: 10.1097/00008505-199205000-00002.
Materials used for the construction of dental restorations and implants include a wide range of metals and alloys, ceramics and carbons, and polymers. When metals and alloys are placed in direct contact in the oral cavity, a galvanic cell can be formed that may compromise the longevity of one or more of the materials in the couple. In vitro electrochemical corrosion analyses have proven to be a valuable tool for providing guidance on the selection of metallic materials. These analyses can provide basic data on electrochemical potentials, current rates, and the evaluation of galvanic corrosion conditions. This article seeks to provide the clinician with information that can be valuable in the selection of metallic materials that may be placed in direct contact with one another in the oral cavity.
用于制作牙齿修复体和植入物的材料包括多种金属和合金、陶瓷、碳以及聚合物。当金属和合金在口腔中直接接触时，可能会形成一个原电池，这可能会影响偶对中一种或多种材料的使用寿命。体外电化学腐蚀分析已被证明是一种为金属材料选择提供指导的宝贵工具。这些分析可以提供关于电化学电位、电流速率以及原电池腐蚀条件评估的基础数据。本文旨在为临床医生提供在选择可能在口腔中相互直接接触的金属材料时可能有价值的信息。
