A dental attachment system has an abutment member configured for attachmentto a tooth root, implant, or adjacent tooth, the abutment member having a headand an annular seat adjacent the head. An elastomeric ring is configured for releasableengagement in the seat on the abutment member, and is retained in a retainer ringwhich in turn is in swivel engagement with a concave inner surface of a cavity ina cap which is secured in a recess in a dental appliance such as a denture, partialdenture, or the like.
