ALLEN, RICHARD ROBERT,GERVAIS, CHRISTOPHER MICHAEL
申请号：
CA2913636
公开号：
CA2913636A1
申请日:
2015.06.05
申请国别(地区):
CA
年份:
2015
代理人:
摘要：
A dental attachment assembly and method anchors a dental appliance with animplant and has an abutment member attached to the implant, a retention memberinreleasable snap engagement with the abutment member, and a cap secured in arecess of the dental appliance and in releasable swivel engagement with theretention member to position and secure the dental appliance onto the implant.Thecap includes a cavity with a rounded, concave inner surface which engages withtheretention member, an interior top surface of the cavity with a concave recessextending radially along an outer periphery of the interior top surface of thecavity toallow for rotation of the retention member within the cap. A central portionof theinterior top surface of the cavity surrounded by the concave recess thereforeprotrudes vertically into the cavity to minimize vertical displacement of theretentionmember as it rotates.
