Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1996-03-13
2000-10-24
O'Connor, Cary
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433215, A61C 800
Patent
active
061357723
ABSTRACT:
The invention is a method and apparatus for embedding an implant of a special design in bone tissue in a way that encourages bone tissue growth in and around the implant thereby achieving greater attachment security over longer periods of time. The user employs a bone-fragment collecting drill to form the bone-tissue hole and deliver the resulting bone fragments to a collecting region. The user crumbles the bone fragments by placing them in the lower of two mating spoon-shaped jaws of a pliers-like device and repeatedly opening and closing the jaws until the bone fragments are crumbled. The surface of the implant is equipped with screw threads, one or more embedded helical channels, and through-holes to permit bone growth into the implant. The installation of the implant consists of partially filling the bone-tissue hole with bone crumbs, packing the helical channels and through-holes with bone crumbs, and screwing the implant into the bone-tissue hole. The bone crumbs in the bone-tissue hole are transported through the helical channels to higher levels in the hole and along the screw threads by the screwing action. In this way, the interspace between the implant and the bone tissue is filled with the patient's own bone tissue thereby greatly encouraging the growth of bone tissue in and around the implant.
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Malm Robert E.
O'Connor Cary
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