Buccal tube
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United States of America Patent
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Jun 8, 1999
Grant Date -
N/A
app pub date -
Jul 24, 1997
filing date -
Jul 25, 1996
priority date (Note) -
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Abstract
A buccal tube has a base part and at least one tube, and it is formed from a metal material comprising Ti or Ti alloy, using a metal injection molding method. The buccal tube can be formed from a metal material which contains Ti as a base component, from 0.03 to 0.5 wt % C, from 0.08 to 0.8 wt % O and from 0.03 to 0.6 wt % N. The total C, O and N content in the metal material is preferably from 0.14 to 1.1 wt %. Furthermore, pores of average diameter from 0.5 to 50 .mu.m are preferably dispersed in at least a surface region of the buccal tube, and the porosity of the holes is preferably from 0.05 to 5.0 vol %. The buccal tube may further comprises at least one engaging part which is preferably formed into a hook or engaging piece for example.
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