ENDOSSEOUS DENTAL IMPLANT SYSTEM FOR OVERDENTURE RETENTION, CROWN AND BRIDGE SUPPORT

摘要

ENDOSSEOUS DENTAL IMPLANT SYSTEM FOR OVERDENTURERETENTION, CROWN AND BRIDGE SUPPORTABSTRACT OF THE DISCLOSUREOne part of the implant comprises a rigid screw anchor ofsubstantially uniform diameter. The anchor has intermediateperipheral threads to engage the bone tissue at a preparedrecess. The lower end of the anchor is hollow, peripherallyperforated and open at the end to surround a bone core pro-jecting from the bottom of the prepared recess. The upper endof the anchor has a relatively deep wrench socket for rotationof the anchor and for reception of a companion pillar part.The pillar part is made of slightly flexible plastic materialthat can approximate a prepared tooth to serve as a single toothreplacement or as a support for a fixed bridge. Optionally,the pillar can provide a platform that forms or mounts one oftwo companion elements of a connector structure such as foroverdenture retention. The anchor can be altered in length notonly at the bottom, but also at the top, without changing themanner in which the anchor cooperates with the later placedpillar.-1-