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Patent Searching and Data


Title:
ATTACHMENT FOR PLATE DENTURE
Document Type and Number:
WIPO Patent Application WO/2015/029730
Kind Code:
A1
Abstract:
Provided is an attachment for a plate denture that is less prone to malfunction even if an external force is applied thereon due to mounting or the like. The present invention is provided with: a convex element (10) that is an upper structure of a natural tooth to be maintained or an artificial root (40); and a concave element (20) that is fixed to a position of a denture base (31) corresponding to the convex element. The convex element has an engaging portion (11), and a connecting portion (12) for connecting the engaging portion to the natural tooth or the artificial root, with the connecting portion having a section narrower than the engaging portion. The concave element is provided with: a main body (21) having the shape of a bottomed cylinder, with the main body (21) having a bottom (21a) on one end thereof, an opening (21b) on the other end thereof, and a hollow portion (21c) for inserting the engaging portion; a ring-shaped groove (21e) formed in an inner circumferential surface of the main body along the circumferential direction thereof; an O-ring (22) having an outer circumferential portion that fits within the groove, with the inner diameter of the O-ring (22) being smaller than the engaging portion; and a drainage channel (21f) communicating between the hollow portion and the outside of the main body through the groove.

Inventors:
WAKO YUICHI (JP)
SETO MASAYA (JP)
Application Number:
PCT/JP2014/070737
Publication Date:
March 05, 2015
Filing Date:
August 06, 2014
Export Citation:
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Assignee:
G C DENTAL IND CORP (JP)
International Classes:
A61C13/265; A61C8/00; A61C13/007
Domestic Patent References:
WO2010081841A22010-07-22
Foreign References:
JPS56148344A1981-11-17
JPS6110719U1986-01-22
JPH06319750A1994-11-22
JP2010509620A2010-03-25
JP2008541858A2008-11-27
JP2001170081A2001-06-26
Other References:
See also references of EP 3040047A4
Attorney, Agent or Firm:
YAMAMOTO, Noriaki et al. (JP)
Yamamoto 典輝 (JP)
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