Ultrasonic dental instruments, insert assemblies, and inserts with improved performance durability
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United States of America Patent
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Aug 2, 2022
Grant Date -
Oct 14, 2021
app pub date -
Apr 9, 2021
filing date -
Apr 10, 2020
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Abstract
Ultrasonic dental instruments, inserts, and insert assemblies are provided which include an acoustic transformer and a tip that, in combination, are configured to operate at an operational frequency different from the frequency of resonance of the transducer that drives the combination. As a result, the ultrasonic dental instruments, inserts, and insert assemblies provide improved performance durability by providing improved output stroke ranges over nominal wear lengths between, for example, 2 mm and 3 mm, which results in more durable performance over a longer service life.
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