Source: http://www.google.com/patents/US5882200?dq=5,941,947
Timestamp: 2017-12-13 03:23:52
Document Index: 655146395

Matched Legal Cases: ['art 8', 'art 8', 'art 8', 'art 8', 'art 8', 'art 8']

Patent US5882200 - Device for connecting a dental implant to a conical secondary element - Google Patents
The significant inventive measure of the arrangement for connecting an implant (1) to the conical secondary part (800) consists in the fact that a radially encircling shoulder part (860) is provided on the conical pillar (830), which shoulder part bears, in the form of an circular ring and partially,...http://www.google.com/patents/US5882200?utm_source=gb-gplus-sharePatent US5882200 - Device for connecting a dental implant to a conical secondary element
Publication number US5882200 A
Application number US 08/913,537
PCT number PCT/CH1996/000100
Also published as DE59600579D1, EP0814724A1, EP0814724B1, WO1996029020A1
Publication number 08913537, 913537, PCT/1996/100, PCT/CH/1996/000100, PCT/CH/1996/00100, PCT/CH/96/000100, PCT/CH/96/00100, PCT/CH1996/000100, PCT/CH1996/00100, PCT/CH1996000100, PCT/CH199600100, PCT/CH96/000100, PCT/CH96/00100, PCT/CH96000100, PCT/CH9600100, US 5882200 A, US 5882200A, US-A-5882200, US5882200 A, US5882200A
Inventors Franz Sutter, Françis J. Sutter
Patent Citations (10), Referenced by (38), Classifications (7), Legal Events (7)
US 5882200 A
1. A connection arrangement for connecting an implant to a conical secondary part, comprising:
a conical secondary part, including a threaded segment which engages said threaded bore, a base pillar which rests in said base pillar support, and a conical pillar which protrudes beyond said implant shoulder, said conical pillar being provided with a groove on an underside thereof, forming a shoulder part with an annular face of a configuration complementary to said implant shoulder such that said conical pillar rests on a portion of said implant shoulder beginning on an inner edge thereof; and
2. A connection arrangement according to claim 1, wherein said implant is a dental implant and said base pillar support is a hollow implant cone.
The implant 1 is inserted intraosseously and transgingivally in the upper or lower jaw bone K, so that the implant head 11 penetrates through the mucous membrane S. After the bone healing phase of the implant 1, which lasts 3-4 months, the healing cap which was then no longer visible, was removed and the conical secondary part 8 was screwed into the implant 1 in situ. The base cone 81 of the conical secondary part 8 thus rests in the implant cone 12 and the threaded segment 82 of the conical secondary part 8 engages into the threaded bore 13 of the implant 1. The threaded bore 13 extends out of the chamber of the implant cone 12, axially downwards from the bottom face of the latter. The conical pillar 83 of the conical secondary part 8 protrudes beyond the implant shoulder 14. The transition between the base cone 81 and the conical pillar 83 is situated at the level of the inner edge 15 of the implant shoulder 14. In a manner corresponding to the implant cone 12, the base cone 81 narrows downwards, while the conical pillar 83 narrows upwards. An axial, blind-bore-like threaded bore 84, into which the threaded segment 110 of a plug-in anchor 100 is screwed, extends from the conical-pillar shoulder 85. For the purpose of impression-taking, an impression cap 300 is placed over the plug-in anchor 100 and the conical pillar 83, the mating shoulder 301, which is complementary to the implant shoulder 14, of the impression cap 300 resting completely and without gaps on the implant shoulder 14. The clamping head 130 of the plug-in anchor 100 forms a plug-in connection with the impression cap 300, so that the mating shoulder 301 is virtually pressed onto the implant shoulder 14. The implant shoulder 14 has an outwardly descending chamfer of 45°, measured with respect to the horizontal. A correspondingly complementary chamfer is provided on the mating shoulder 301. To accommodate the conical secondary part 8, the impression cap 300 has a conical bore 304 which continues as a blind-bore-like cavity for accommodating the plug-in anchor 100.
The cone angle of the implant cone 12 is, for example, 8° and the base cone 81 has a corresponding conicity, so that even a tolerance of 0.02 mm leads to an axial displacement of the conical secondary part 8 of 0.18 mm. This relatively large axial displacement may cause undesirable inaccuracies. Thus it is not possible to define very accurately the thickness of the layer of cement between the supra-appliance, when the latter is placed on the implant 1, and the projecting conical pillar 83.
The implant shoulders 14 and 74 could also have a chamfer other than 45°; the annular face 861 and the mating shoulders 301 and 501 of the impression cap 300 and of the crown cap 500, respectively, would then have to be produced with a correspondingly adapted positioning angle.
US2258207 * Mar 18, 1941 Oct 7, 1941 Irwin Glenn D Artificial denture retainer
US6974322 * Jul 12, 2002 Dec 13, 2005 Dittmar May Implant-supported dental prosthesis and a process for its production
US20120058451 * Nov 17, 2011 Mar 8, 2012 Sargon Lazarof Dental securing mechanism with taper seal
WO2004108014A3 * Jun 3, 2004 Jul 7, 2005 Intra Lock Internat Inc Prosthesis mounting device and assembly
Cooperative Classification A61C8/0001, A61C8/0069, A61C8/005
European Classification A61C8/00B, A61C8/00G1
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SUTTER, FRANZ;SUTTER, FRANCIS J.;REEL/FRAME:008830/0067