抄録
The purpose of this study is to measure electrode potential of porous-surfaced endosseous dental implants in the human mouth. The electrode potentials of porous-surfaced dental implants in the mouth of patients were measured in conjunction with a platinum micro-probe.
Number of patients were of 22, ranging from 34～68 years.
The electrode potentials of 47 porous-surfaced endosseous dental implants were within the range of 0～-200mV (AgCl) and were not influenced by the stage of implantation (0～54 months after connection of the superstructures).
Comparison of the electrode potentials of the implants between male and female, time durations after the superstructures connection showed no excessive change in the patterns of distribution.
Among 9 mm length implant group, 1 mm smooth coronal region group showed base values than 2 mm smooth coronal region group. The electrode potentials of fixtures toward base values according to remove the superstructures.
This indicate electrode potentials of fixtures suppress the corrosion of Pd-Au-Ag alloy.
