US3834023A - Device for fixing a dental prosthesis - Google Patents

Device for fixing a dental prosthesis Download PDF

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Publication number
US3834023A
US3834023A US00335825A US33582573A US3834023A US 3834023 A US3834023 A US 3834023A US 00335825 A US00335825 A US 00335825A US 33582573 A US33582573 A US 33582573A US 3834023 A US3834023 A US 3834023A
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US
United States
Prior art keywords
prosthesis
cavity
spindle
lever arm
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US00335825A
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English (en)
Inventor
G Lapeyre
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Individual
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Individual
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Publication date
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Publication of US3834023A publication Critical patent/US3834023A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/225—Fastening prostheses in the mouth

Definitions

  • the present invention relates to a dental prosthesis device which is to be incorporated into the lower portion of each false tooth placed at the end of the prosthesis, the same comprising either a palate or only a plate covering partially the gum.
  • Devices for fixing a dental prosthesis are already known, said devices holding false teeth either with help of a palate or with a plate covering partially the gum. But said devices are not aesthetic since they can be seen in the mouth of the person having the prosthesis, moreover they can be sometimes dangerous for the genuine teeth on which they are fixed. Actually the genuine teeth are damaged by the constant rubbing of 'the fixing device on the genuine teeth forming an axis and especially during mastication.
  • the present invention solves these disadvantages by providing a fixing device which cannot be seen in the mouth of the prosthesis holder and which limits to a strict minimum the rubbing against the genuine teeth which are forming pivot axes.
  • the device is constituted by an alveole or cell included into the prosthesis, said alveole comprising a housing with walls forming a cavity and holding a transverse spindle on which is hinged a resilient element having a protruding end forming a ring with a flattened area coming in contact with a genuine tooth contiguous to the prosthesis whereby holding the same on the genuine tooth.
  • the resilient element is constituted by a spring having a substantially V-shape with double parallel element, one arm of the V-shape being fixed in the cavity of the alveole, while the other arm of the V-shape is winded up around an horizontal spindle removably fixed to the alveole and protrudes from dais alveole to form a ring with a flattened area.
  • FIG. 1 is a perspective view of the fixing device.
  • FIG. 2 is an enlarged plan view of the fixing device.
  • FIG. 3 is a sectional view along line lIIIII of FIG. 2.
  • FIG. 4 is a side elevation view of the fixing device taken along line IVIV in FIG. 3.
  • FIG. 5 is a partly exploded side elevation view showing how to place a prosthesis provided with the fixing device according to the invention.
  • FIG. 6 is a partly exploded side elevation view of the prosthesis placed on the gum.
  • FIG. 7 is a cross sectional view talgen along line VII- VII of FIG. 6.
  • FIG. 8 is a partly exploded side elevation view showing a prosthesis during its removal from the gum whereon it has been placed.
  • the fixing device comprises an alveole or cell 1 having, at rear portion thereof, or substantially parallele-piped shape and havng an oblong shape at its front portion.
  • the alveole 1 has walls forming a housing with a cavity 2 therein receiving a spring 3 having substantially a V-shape.
  • Said spring is double and is provided on one of its wings with two extensions 3a, 3b of which the ends are anchored into the inside portion of the cavity 2, while the curved portion (bottom part of the V- shape) is housed in bottom of the cavity 2.
  • the two other arms 3c, 3d are ended, on their front portion, with a ring 5 which is flattened to constitute an horizontal bar 5a. Before forming the ring 5, the two arms 3c, 3d form a number of windings wound aroud a spindle 4 removably mounted in the alveole 1.
  • the alveole is laterally extended by wings 6, 7.
  • the fixing device is held by any suitable means inside a cavity 15 made into a false tooth 14 being a part of prosthesis 10.
  • Said prosthesis carries false teeth 12, 13, 14 and, besides comprises wings ll overlapping the gum G.
  • This prosthesis is then easily placed on the gum.
  • the lower gum has to be covered.
  • the spring 3 is released and the ring 5 takes a substantially horizontal position, which means under the neck of the genuine tooth D, thus locking one of the ends of the prosthesis.
  • the other end of the prosthesis is locked in the same way by a fixing device which is placed into the end false tooth opposite the tooth 14.
  • the flattened portion 5a of the ring 5 is only bearing against the outer surface of the genuine tooth D beneath the neck of said genuine tooth and thus holds the prosthesis.
  • the device is thus perfectly invisible even if the person having said prosthesis opens his mouth since the fixing device is placed between the teeth just above the gum. Besides, rubbing is reduced to a strict minimum due to the fact that there is a straight surface, in fact reduced to a straight line.
  • the spring works in three different positions: either upwards in srong function (FIG. 5) or in released position (no function, FIG. 6) or yet in low function (FIG. 8, removal of the prosthesis).
  • the efficiency of said device consists in the constant return back of the spring 3 into the released position as represented in FIG. 6.
  • the alveole l is made, whenever possible, of a plastic material sufficiently resistant and tolerable by the system and which can be easily placed into the false teeth.
  • the spring which is most of the time made of steel could be also made of any other suitable material presenting little hysteresis.
  • the two elements 30, 3d constituting one of the arms of the V-shape are forming two winds around the spindle 4 but, in some cases, one of the arms can form one wind on the outer side for example the portion 3d, while the other inner side of the arm 30 will form two or three winds around the spindle 4 which can be realized either by a small threaded spindle being placed into the alveole, or only by a small loose spindle.
  • the wings 6, 7, fixed to the alveole 1 enable fixing said alveole on the plate of the prosthesis supporting the false teeth.
  • a housing mountable in said prosthesis the walls of said housing forming a cavity having an opening; a spindle mounted to said walls of said housing and extending across said cavity; resilient element pivotally coupled to said spindle and having a lever arm portion with an engaging surface for contacting a genuine tooth, said lever arm portion normally protruding from said cavity through said opening while being resiliently pivotable about said spindle, whereby said prosthesis having said device mounted therein can be fixed against the neck of an adjacent genuine tooth in the normal protruding position of said lever arm portion, and can be installed against and removed from the neck of said adjacent genuine tooth by pivoting of said lever arm portion.
  • said resilient element comprises a wire spring
  • said lever arm portion comprises a ring with a flattened peripheral portion forming said engaging surface
  • said spring further includes a pair of parallel arms extending from said ring and coiled around said spindle, said parallel arms extending into said cavity and bearing against said walls whereby said ring is resiliently and pivotally coupled to said spindle.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Prosthetics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US00335825A 1972-02-28 1973-02-26 Device for fixing a dental prosthesis Expired - Lifetime US3834023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7206714A FR2174326A5 (enrdf_load_html_response) 1972-02-28 1972-02-28

Publications (1)

Publication Number Publication Date
US3834023A true US3834023A (en) 1974-09-10

Family

ID=9094252

Family Applications (1)

Application Number Title Priority Date Filing Date
US00335825A Expired - Lifetime US3834023A (en) 1972-02-28 1973-02-26 Device for fixing a dental prosthesis

Country Status (9)

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US (1) US3834023A (enrdf_load_html_response)
JP (1) JPS4899990A (enrdf_load_html_response)
BE (1) BE795326A (enrdf_load_html_response)
CH (1) CH561051A5 (enrdf_load_html_response)
DD (1) DD101557A5 (enrdf_load_html_response)
DE (1) DE2307643C3 (enrdf_load_html_response)
ES (1) ES412062A1 (enrdf_load_html_response)
FR (1) FR2174326A5 (enrdf_load_html_response)
IT (1) IT979568B (enrdf_load_html_response)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749726A1 (de) * 1977-04-28 1978-11-02 Charles D Kelman Augeninnenlinse
US4735570A (en) * 1987-01-23 1988-04-05 Chen Tan S False tooth attachment
DE4027430A1 (de) * 1990-08-30 1992-04-02 Schmidt Mueller Uwe Haltevorrichtung zur loesbaren befestigung einer zahnprothese an einem restgebiss
US20040111153A1 (en) * 2002-10-25 2004-06-10 Randall Woods Capsular intraocular lens implant having a refractive liquid therein

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009507A1 (en) * 1978-09-13 1980-04-16 Frans Arthuur Benoit Dequeker A harmless cosmetic removable partial denture construction
EP0065265B1 (de) * 1981-05-20 1985-01-09 Wilhelm Dr. Lorenz Federelement für kieferorthopädische Platten
JP2018064657A (ja) * 2016-10-17 2018-04-26 和憲 古賀 局部義歯

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2748480A (en) * 1955-03-29 1956-06-05 Weissman Bernard Artificial denture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2748480A (en) * 1955-03-29 1956-06-05 Weissman Bernard Artificial denture

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749726A1 (de) * 1977-04-28 1978-11-02 Charles D Kelman Augeninnenlinse
US4735570A (en) * 1987-01-23 1988-04-05 Chen Tan S False tooth attachment
DE4027430A1 (de) * 1990-08-30 1992-04-02 Schmidt Mueller Uwe Haltevorrichtung zur loesbaren befestigung einer zahnprothese an einem restgebiss
US20040111153A1 (en) * 2002-10-25 2004-06-10 Randall Woods Capsular intraocular lens implant having a refractive liquid therein

Also Published As

Publication number Publication date
DE2307643B2 (de) 1980-01-31
BE795326A (fr) 1973-05-29
DE2307643C3 (de) 1980-09-25
FR2174326A5 (enrdf_load_html_response) 1973-10-12
JPS4899990A (enrdf_load_html_response) 1973-12-17
ES412062A1 (es) 1976-01-01
DD101557A5 (enrdf_load_html_response) 1973-11-12
DE2307643A1 (de) 1973-09-13
CH561051A5 (enrdf_load_html_response) 1975-04-30
IT979568B (it) 1974-09-30

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