SCREW AND DRIVER TOOL FOR DENTAL PROCEDURES
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United States of America Patent
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Issued Date -
Apr 20, 2017
app pub date -
Oct 20, 2016
filing date -
Oct 20, 2015
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Abstract
A screw and a driver tool are used in dental procedures. The screw has an apical and coronal end and comprises a bore extending from the coronal end of the screw along a portion of the screw towards the apical end. The bore includes a plurality of recesses arranged circumferentially around an inside surface of the bore, wherein each successive pair of recesses is connected by a contact surface on the inside surface of the bore. Two sets of recesses and contact surfaces may be present to allow for optimal contact with a conventional hex driver using one set and an inventive driver with the other set. The driver comprises a driver head having an apical and a coronal end. The driver head has a plurality of edges with a rounded outer shape and a plurality of surfaces extending between successive edges. The surfaces are generally concave.
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