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ESCA Study on Dental Alloy Surfaces Modified by Ga-Sn Alloy

Department of Dental Materials Science, Higashi-Nippon-Gakuen University, 061-02, Ishikari-Tobetsu, Hokkaido, Japan

Y. Araki

Department of Dental Materials Science, Higashi-Nippon-Gakuen University, 061-02, Ishikari-Tobetsu, Hokkaido, Japan

K. Endo

Department of Dental Materials Science, Higashi-Nippon-Gakuen University, 061-02, Ishikari-Tobetsu, Hokkaido, Japan

A new, simple surface modification method for adherend metals has been developed. It gives high bond strength and superior water durability to dental precious-metal alloys bonded with 4-META/ MMA-TBB resin. However, there was no effect on the bonding of Ag-In-Zn alloy and base-metal alloys. In the present study, the alloy surfaces modified by the new method were analyzed by ESCA and SEM for determination of details of the modification effect.

A new alloying layer containing Ga and Sn was formed on the precious-metal alloys. The main factor for excellent adhesion to be achieved was the formation of a very thin layer of Ga ₂O₃ and SnO₂, less than 1-2 nm thick, on the alloy surface. A thicker modified layer, as formed on the Ag-In-Zn and Ni-Cr alloys, led to low bonding ability.

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Journal of Dental Research, Vol. 71, No. 6, 1332-1339 (1992)
DOI: 10.1177/00220345920710061101


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				H. Ohno, Y. Araki, and K. Endo A New Method for Promoting Adhesion between Precious Metal Alloys and Dental Adhesives Journal of Dental Research, June 1, 1992; 71(6): 1326 - 1331. [Abstract] [PDF]

This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Ohno, H. Articles by Endo, K. Search for Related Content PubMed PubMed Citation Articles by Ohno, H. Articles by Endo, K. Social Bookmarking                         What's this?