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US3742604A - Dental prosthesis with concealed hook - Google Patents

Dental prosthesis with concealed hook Download PDF

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Publication number
US3742604A
US3742604A US00153953A US3742604DA US3742604A US 3742604 A US3742604 A US 3742604A US 00153953 A US00153953 A US 00153953A US 3742604D A US3742604D A US 3742604DA US 3742604 A US3742604 A US 3742604A
Authority
US
United States
Prior art keywords
prosthesis
hook
recess
hooks
teeth
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
Application number
US00153953A
Other languages
English (en)
Inventor
V Narboni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR7023938A external-priority patent/FR2094650A5/fr
Priority claimed from FR7044023A external-priority patent/FR2117699A6/fr
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3742604A publication Critical patent/US3742604A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • A61C13/267—Clasp fastening

Definitions

  • the present invention relates to dental prostheses intended to replace one or more missing teeth and arranged to be secured in removable manner in the mouth, by anchoring to the adjacent tooth or teeth.
  • the object of the invention is to embody a dental prosthesis eliminating these shortcomings.
  • the dental prosthesis according to the invention is characterised by a container fastened to the prosthesis, on the face of the same opposed to the working face of the tooth or teeth, against the action of a return spring.
  • the anchoring hook co-operates with a counterpart in unit with the prosthesis and may moreover be pushed inwards into the case against the action of the spring.
  • the anchoring hook consists of an elastic material and comprises two portions connected by a loop situated within the case, which two portions may be moved apart from each other by elastic deformation of the loop.
  • FIG. 1 is a view in perspective of a first form of embodiment and equally shows the mouth into which the prosthesis is to fit.
  • FIG. 2 is .an exploded view in perspective of one of the'cases and of the corresponding anchoring hook of the prosthesis of FIG. 1.
  • FIG. 3 is a view in section of the prosthesis abreast of a case.
  • FIG. 4 is a view similar to FIG. 3, the anchoring hook being in the opened position.
  • FIG. 5 is a view in elevation of a part of the prosthe- SIS.
  • FIG. 6 is a view in perspective of a second form of embodiment of the prosthesis.
  • FIG. 7 is a view in section showing the double anchoring hook of the prosthesis of FIG. 6, and of the case in which this double hook is situated.
  • a flat milled case 5 At each of the extremities of the prosthesis 1, under the inward face of the same, is affixed a flat milled case 5.
  • this case is arranged to pivot and to be axially displaced an anchoring hook-6 which protrudes laterally from the case; this hook is held in position by a screw 7 which traverses holes 8 of the case as well as an elongated perforation 9 of the hook and on which is screwed a nut 10.
  • the screw 7 extends at right angles to the working face or occlusal surface of the teeth, that is to say that it is vertical when the prosthesis is in position; it extends beyond the nut and is screwed into the prosthesis which holds the case in position.
  • a spring ll interposed between the bottom of the case' and a projection 6a of the hook 6- tends to impel the hook into the position illustrated in FIG. 3 and in which it is extended as far as possible out of the case whilst being close to a counterpart 12 in unit with the prosthesis 1.
  • the prosthesis To secure the prosthesis, it is placed in position whilst engaging the counterparts l2 behind the teeth 3' and 4 and whilst tipping it outwards.
  • the anchoring hooks 6 are moved away from the counterparts whilst being pushed into their cases 5 to assume the position illustrated in FIG. 4, which enables the wide part of the teeth 3 and 4 to pass between the hooks 6 and the counterparts 12.
  • the hooks 6 under return impulsion by the springs 1 1, re-assume their initial positions whilst being applied and clamped on the neckeddown parts of the teeth 3 and 4 which are then enclamped over approximately three-quarters of their circumference (FIG. 5).
  • the hooks are practically invisible, especially if they are covered by a plastic covering of ivory colour or by a ceramic coating.
  • the prosthesis 13 comprises a double anchoring hook 14 of an elastic metal, the counterpart in unit with the prosthesis being omitted in this form.
  • This double anchoring hook comprises two rectilinear branches 14a and 14b, arranged side-by-side and joined together by a loop 14c; these rectilinear branches are arranged in a case 15 open at one of its extremities, which is fastened to the prosthesis and within which they are held securely by means of a screw 16 and of a nut 17.
  • Each of the branches 14a and 14b is continued outside the case 15 by an anchoring portion 14d or 14e.
  • the screw could fit with a definite degree of play in the branch Me which would endow the fastening with a degree of flexibility favourable to the durability of the teeth used as supports.
  • the branches 14d and Me move away from each other as illustrated in broken lines in FIG. 7, to allow of traversal by the wider part of the tooth adjacent to the prosthesis.
  • the hook then returns to its initial shape under the action of its elasticity, whilst enclamping the base of this tooth.
  • the prosthesis 13 could thus comprise a double anchoring hook 14 at each of its extremities.
  • the prosthesis could consist of two portions joined together by a dome intended to fit under the palate and of which each would be equipped either with a hook 6 and a counterpart 12 or with a double hook 14.
  • a dental prosthesis adapted to be removably secured in the mouth by anchoring to at least one adjacent tooth, the prosthesis comprising at least one false tooth having an occlusal surface, a pair of hooks car ried by the prosthesis and opening toward each other, a recess in said prosthesis, a pivot fixedly mounted on said prosthesis in said recess, one hook having a projection that extends into said recess, said projection having an elongated slot extending therethrough, said fixed pivot being slidably disposed in said slot, and spring means acting between said recess and said projection continuously yieldably urging said hook away from said recess and toward said other hook.
  • said recess being of a size and shape to permit said hooks to move away from each other against the action of said loop.

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)
US00153953A 1970-06-29 1971-06-17 Dental prosthesis with concealed hook Expired - Lifetime US3742604A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7023938A FR2094650A5 (fr) 1970-06-29 1970-06-29
FR7044023A FR2117699A6 (fr) 1970-12-08 1970-12-08

Publications (1)

Publication Number Publication Date
US3742604A true US3742604A (en) 1973-07-03

Family

ID=26215824

Family Applications (1)

Application Number Title Priority Date Filing Date
US00153953A Expired - Lifetime US3742604A (en) 1970-06-29 1971-06-17 Dental prosthesis with concealed hook

Country Status (5)

Country Link
US (1) US3742604A (fr)
BE (1) BE768247A (fr)
CH (1) CH530204A (fr)
DE (1) DE2129712A1 (fr)
GB (1) GB1291009A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100028286A1 (en) * 2008-07-31 2010-02-04 Jose Antonio Carballada Method and Composition for Stabilizing Hair Moisture Levels
CN114246701A (zh) * 2020-09-25 2022-03-29 湖南芽正美科技有限公司 一种牙科用假牙安装用辅助装置
IT202100027482A1 (it) * 2021-10-26 2023-04-26 Univ Degli Studi Di Perugia Protesi dentale parziale rimovibile

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634888A1 (de) * 1986-10-14 1988-04-28 Juergen Hoefermann Zahnprothese
DE3932875A1 (de) * 1989-10-02 1991-04-11 Dental Labor W Huismann Gmbh Herausnehmbarer partieller zahnersatz
DE4436516A1 (de) * 1994-10-13 1996-04-25 Peter Nolle Zahnprothese

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611956A (en) * 1949-11-16 1952-09-30 Warren Lab Denture
US3267574A (en) * 1963-03-06 1966-08-23 Jr Vincent J Oddo Partial denture with movable retaining arm

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611956A (en) * 1949-11-16 1952-09-30 Warren Lab Denture
US3267574A (en) * 1963-03-06 1966-08-23 Jr Vincent J Oddo Partial denture with movable retaining arm

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100028286A1 (en) * 2008-07-31 2010-02-04 Jose Antonio Carballada Method and Composition for Stabilizing Hair Moisture Levels
CN114246701A (zh) * 2020-09-25 2022-03-29 湖南芽正美科技有限公司 一种牙科用假牙安装用辅助装置
IT202100027482A1 (it) * 2021-10-26 2023-04-26 Univ Degli Studi Di Perugia Protesi dentale parziale rimovibile

Also Published As

Publication number Publication date
DE2129712A1 (de) 1972-01-05
CH530204A (fr) 1972-11-15
BE768247A (fr) 1971-11-03
GB1291009A (fr) 1972-09-27

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