Corrosion behavior of Ti-Ag alloys used in dentistry in lactic acid solution

Masatoshi Takahashi; Masafumi Kikuchi; Yukyo Takada

doi:10.1007/s12540-011-0224-y

Corrosion behavior of Ti-Ag alloys used in dentistry in lactic acid solution

Masatoshi Takahashi, Masafumi Kikuchi, Yukyo Takada

DEN - Dental Sciences

Tohoku University

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

The purpose of this study was to evaluate the corrosion resistance of experimental Ti-Ag alloys used as dental materials. An elution test and a rest-potential measurement of alloys with 5-30 mass.% Ag were performed in a 1 % lactic acid solution. The amount of Ti ions released from the a phase of the Ti-Ag alloys decreased as the Ag concentration increased. TiAg present in the alloys dissolved preferentially, but Ti₂Ag did not. The rest potentials of the Ti-Ag alloys were significantly higher than that of pure titanium. The elution test and the rest-potential measurement revealed that the Ti-Ag alloys, which formed a single α-titanium structure or contained a titanium and Ti₂Ag, had excellent corrosion resistance that was comparable or superior to that of pure titanium.

Original language	English
Pages (from-to)	175-179
Number of pages	5
Journal	Metals and Materials International
Volume	17
Issue number	1
DOIs	https://doi.org/10.1007/s12540-011-0224-y
Publication status	Published - 2011 Feb

Keywords

Biomaterials
Casting
Corrosion
Dental alloy
Scanning electron microscopy (SEM)

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10.1007/s12540-011-0224-y

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abstract = "The purpose of this study was to evaluate the corrosion resistance of experimental Ti-Ag alloys used as dental materials. An elution test and a rest-potential measurement of alloys with 5-30 mass.% Ag were performed in a 1 % lactic acid solution. The amount of Ti ions released from the a phase of the Ti-Ag alloys decreased as the Ag concentration increased. TiAg present in the alloys dissolved preferentially, but Ti2Ag did not. The rest potentials of the Ti-Ag alloys were significantly higher than that of pure titanium. The elution test and the rest-potential measurement revealed that the Ti-Ag alloys, which formed a single α-titanium structure or contained a titanium and Ti2Ag, had excellent corrosion resistance that was comparable or superior to that of pure titanium.",

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AU - Takahashi, Masatoshi

AU - Kikuchi, Masafumi

AU - Takada, Yukyo

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AB - The purpose of this study was to evaluate the corrosion resistance of experimental Ti-Ag alloys used as dental materials. An elution test and a rest-potential measurement of alloys with 5-30 mass.% Ag were performed in a 1 % lactic acid solution. The amount of Ti ions released from the a phase of the Ti-Ag alloys decreased as the Ag concentration increased. TiAg present in the alloys dissolved preferentially, but Ti2Ag did not. The rest potentials of the Ti-Ag alloys were significantly higher than that of pure titanium. The elution test and the rest-potential measurement revealed that the Ti-Ag alloys, which formed a single α-titanium structure or contained a titanium and Ti2Ag, had excellent corrosion resistance that was comparable or superior to that of pure titanium.

KW - Biomaterials

KW - Casting

KW - Corrosion

KW - Dental alloy

KW - Scanning electron microscopy (SEM)

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Corrosion behavior of Ti-Ag alloys used in dentistry in lactic acid solution

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