Electrochemical behavior of dental implant system before and after clinical use

Electrochemical behavior of dental implant system before and after clinical use （in vivo and in vitro） was researched by using abutment and titanium fixture. To simulate an oral environment, the samples of clinically used and non-used implant systems as a working electrode were exposed to artificial...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2009-08, Vol.19 (4), p.846-851
Main Authors: CHUNG, Chae-Heon, KIM, Hee-Jung, JEONG, Yong-Tae, SON, Mee-Kyoung, JEONG, Yong-Hoon, CHOE, Han-Cheol
Format: Article
Language:English
Subjects:
dental implants
electrochemical test
pitting and crevice corrosion
titanium fixture
临床使用
临床应用
使用制度
夹具系统
电化学测试
电化学行为
种植制度
腐蚀形态
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Summary:Electrochemical behavior of dental implant system before and after clinical use （in vivo and in vitro） was researched by using abutment and titanium fixture. To simulate an oral environment, the samples of clinically used and non-used implant systems as a working electrode were exposed to artificial saliva at （36.5±1） ℃. Electrochemical tests were carried out using a potentiostat. After electrochemical test, the corrosion morphology of each sample was investigated by FE-SEM and EDS. The corrosion potential and pitting potential of clinically used implant system are lower than those of non-used implant system, and clinically used implant system exhibits a lower range of passivation, indicating a less degree of inherent resistance against chloride ion. The polarization resistance decreases in the case of clinically used implant system, whereas, Rp for clinically non-used implant system increases compared with clinically used implant system.
ISSN:1003-6326
DOI:10.1016/S1003-6326(08)60362-3