DENTAL IMPLANT WITH EXPANDED PTFE GINGIVAL INTERFACE

DENTAL IMPLANT WITH EXPANDED PTFE GINGIVAL INTERFACE
Canadian intellectual Property Patent Database
CA Patent Number: CA 1246905
Publication Date: Dec. 20, 1988
Inventors (Country): SCANTLEBURY, TODD V. (United States)
CAMPBELL, STEPHEN E. (United States)
GREEN, LATHAGGAR, III (United States)
BOLTON, CARL W. (United States)
AMBRUSTER, JEANNE B. (United States)
Owners (Country): GORE (W. L.) & ASSOCIATES, INC. (Not Available)
Applicants (Country):
Agent: GOWLING LAFLEUR HENDERSON LLP
Issued: Dec. 20, 1988
Filed: July 6 , 1984
Open to Public Inspection:
Canadian Class (CPC): 83/26
International Class (IPC): A61C 13/00
Patent Cooperation Treaty (PCT): No
Abstract:
A dental implant device. A dental implant device having: (a) a root structure made of a biocompatible, mechanically suitable prosthetic material; (b) a cervical segment projecting above the root structure, made of a biocompatible, nonporous material and having smooth surfaces and together with the root structure forming a member; and (c) a gingival interface made of expanded polytetrafluoroethylene having a porous structure for the ingrowth of connective tissue, located adjacent to the juncture of the root structure and the cervical segment attached to the member and forming a border around the apical end of the cervical segment. The expanded polytetrafluoroethylene provides for an interlocking between the gingival tissue and the pergingival portion of the dental implant preventing bacterial penetration and infection where the implant extends into the oral cavity.