Dentistry – Method or material for testing – treating – restoring – or... – Crown
Patent
1997-06-04
1998-07-07
Wilson, John J.
Dentistry
Method or material for testing, treating, restoring, or...
Crown
A61C 508
Patent
active
057759103
ABSTRACT:
An improved dental post having a radicular portion which is inserted and cemented into a root canal area of a tooth and also having a coronal portion which is used for attachment of a core to retain an artificial crown. The radicular portion includes a cervical flare shaped section, a central parallel circular shaped section and an apical tapered section. The cervical flare shaped section is adjacent the coronal portion. The radicular portion is provided with circumferentially extending grooves which communicate with longitudinally extending venting flutes. The venting flutes extend from the apical tapered section to the coronal portion. The coronal portion includes three cross shaped sections, each of which includes four protrusions extending from a central hub and forming valleys therebetween. The cross shaped section protrusions and valleys are longitudinally spaced apart and are radially aligned with one another. The radicular portion is sandblasted to facilitate using current resin-bonded cement techniques which specify a sandblasted surface for bonding.
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APM-Sterngold Information Sheet (Unknown Publication date) IntegraPost advertisement (Sep. 1996).
Pappas George
Wilson John J.
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