Temporomandibular joint prosthesis
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United States of America Patent
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Apr 11, 1995
Grant Date -
N/A
app pub date -
Jun 16, 1993
filing date -
Jun 2, 1993
priority date (Note) -
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Abstract
A temporomandibular joint prosthesis comprising a cranial prosthesis-part comprising a support surface adapted to be seated against bone tissue in the area of and/or adjacent to the natural glenoid fossa and/or the articular eminence and a mandibular prosthesis-part adapted to be pivotable relative to the cranial prosthesis-part when in implanted condition. The mandibular prosthesis-part is pivotable about a center of rotation which is located in such a position relative to the support surface of the cranial prosthesis-part, that in implanted condition the center of rotation is located substantially inferior to the center of the natural mandibular condyle. The prosthesis allows a natural combination of rotation and translation of the mandibular condyle in spite of the loss of the function of the lateral pterygoid muscles.
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