Production rod attachment denture material covering the earliest uses a gold alloy, which has good mechanical titanium alloy properties , suitable elastic properties . Persist in the mouth , with good corrosion resistance, and non-toxic side effects, in the developed countries is still being used as the main material attached to the production role . However , due to the rising price of gold production costs , increasing denture , increased the financial burden on patients. Therefore, it uses a number titanium plate for sale of non- precious metals attachment , such as ceramic alloys , but when they are used for dental restoration materials , due to the corrosion of metals produced , will be released within the alloy elements in the form of ions into the oral environment and local organizations contacting cells or produce different biological effects , especially when using a different alloy prosthesis , since the saliva in the oral cavity as an electrolyte to form the source cell, a current corrosion .
Therefore, the use of titanium and titanium abutments for implants , making the material attached to the titanium plate suppliers upper part of the body structure should also adopt the same kind of alloy , to prevent the generation of electrochemical corrosion .
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