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Title: Contra-angle ultrasonic endodontic instrument

Abstract: A contra-angle ultrasonic endodontic instrument is described which includes, basically, a head mechanically coupled to the ultrasonically driven shaft of an endodontic instrument. The head includes means, such as one or more holes, to receive a shaft of an endodontic tool of relatively uniform longitudinal and lateral cross-section with its longitudinal axis at a substantial angle to the longitudinal axis of the shaft, thus, ultrasonic vibrations in the shaft are transferred to the tool.


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Inventors: Scholz, Jr., Howard W. (San Luis Obispo, CA, US)

Application Number: 935926
Filing Date: 1978-08-23
Publication_date: 1980-10-21
Assignee:
Primary Class(es): 433/124 433/102
Other Classes:
US Patent Ref:
3368280Feb, 1968Friedman et al.32/58.
3892040Jul, 1975Marquis32/40.
3969823Jul, 1976Nakanishi32/58.

Other Refs:
Primary Examiner: Peshock, Robert
Assistant Examiner:
Attorney: Spensley, Horn, Jubas & Lubitz