Non-rotational single-tooth prosthodontic restoration
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United States of America Patent
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Sep 11, 1990
Grant Date -
N/A
app pub date -
Jun 23, 1988
filing date -
Jun 23, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and a system for preparing a single-tooth prosthodontic restoration for non-rotational fixation to a dental implant fixture of the kind having a threaded socket together with anti-rotation means to restrain components non-rotationally attached to the fixture. The system provides a set of attachments comprising a two part impression coping having anti-rotation means cooperative with the anti-rotation means of the fixture and index means to fix the coping against rotation when encased in resilient impression material, a laboratory analog having a replica of the anti-rotation means of the fixture and core means on which to fabricate the restoration, the core means having a replica of the anti-rotation means of the impression coping. The method of using the system prepares a single-tooth restoration for fixation on an implanted fixture non-rotationally and with the desired orientation around its axis, so that no stabilizing connection to an adjacent tooth is required.
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