Process of electro-eroding channels in multiple buccal tube device
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United States of America Patent
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Jan 22, 1980
Grant Date -
N/A
app pub date -
Apr 7, 1977
filing date -
Apr 15, 1976
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A buccal tube device has a body attached to a tooth band. The body contains at least one channel with a non-circular cross-section. The channel is formed in the body by an electroerosion process. In a preferred form, the channel cross-section is four cornered and is inclined. The invention also includes a process for forming such buccal tubes by providing an electroerosion electrode with a non-circular cross-section and using it to form a channel of corresponding cross-section. The electroerosion process may include flushing the channel thus formed during the electroerosion.
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