US1474370A

US1474370A - Art of dental surgery

Info

Publication number: US1474370A
Application number: US544372A
Authority: US
Inventors: Lawrence A Kiander
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-03-16
Filing date: 1922-03-16
Publication date: 1923-11-20
Anticipated expiration: 1940-11-20

Description

Nov. 20 1923. 1,474,370

L. A. KIANDER ART OF DENTAL SURGERY Filed March 16. 1922 avwmto'a Laurrwfice 14. Km

27 I h s Patented Nov. 20, 1923.

more s'raraears ART OF DENTAL SURGERY.

Application filed March 16,1922. Serial 1 10. 544,372.

To all whom 2 2, may concern."

Be it known that I, LAWRENCE A. KIA'N- one, a citizen of the United States, and residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in the Art of Dental Surgery, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same. a

' This invention relates to the art of dental surgery and particularly to what is known as artificial dentures or bridge and plate work in such art, and the object of the invention is to provide means for making 7 bridge or plate work more effective, practical v claimed.

and efiicient in use and to avoid the capping or crowning of permanent teeth in what is know popularly as bridge-workat the present and, in which, by means of my improvement, bridge-work as well as plate-work may I be detachably connected with the permanent teeth instead of being rigidly secured there to as is the general custom; a further object of the invention is to provide a denture of the class described with a clasp so mounted in connection with the denture as to permit of the movement of said clasp thereon to facilitate the mounting of the denture upon the permanent teeth of a jaw regardless ofthe position of such teeth in the jaw and to permit of the removal of such bridge or plate work without injury in any way to the permanent or natural teeth; and

with these and other objects in View the invention consists in an artificial denture of the class and for the purposespecified which is simple in construction, efiicient in use and constructed as hereinafter described and The invention. described and claimed herein is an improvement on that shown anddescribed in a prior patent granted to me February 28, 1922, No. 1,408,006, and is fully disclosed in the followingspecification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which I v Fig. 1 is a side view of a part ofa jaw showing my improved artificial denture mounted in connection with two of the natural or permanent teeth thereof;

Fig. 2 a bottom plan view of the construction shown in Fig. l;

Fig. 3 a partial section on the line 3-3 of Fig. 2 of the artificial denture detached and on an enlargedscale; Y

Fig; i a partial section on the line 4 i of Fig. 3 on an'enlarged scale; i f

Fig.5 a partial section on the line 55 ofFig. on an enlarged scale F ig. 6 a perspective detail view of the movable clasp employed;

Fig. 7 aperspective detail view of apin or part employed,

Fig. 8 a perspective detail view of a plate employed Fig. 9 a perspective detail view of a shield member employed; v

Fig. 10 a view similar to Fig. i with part of the construction omitted and showing a modification; and, V

h Fig. 11 a view similar to Fig. 10 but showing another modification.

In Fig. 1 of the drawing I have shown at 12 a part of a jaw provided with two permanent or

natural teeth

13 and 14 and at 15 is shown my improved denture comrarer...

LAWRENCE A. KIANDER, OF NEW YORK, N. Y,

prising a plate 16 of the usual or any desired form and construction to which, in the clearly shown in Fig. 2 of the drawing. v

Mounted in connection with the other end of the denture is a movable clasp device 21 shown in detail in Fig. 6 of the drawing, said clasp being provided with teeth engagingprongs 22 adapted to encircle or partially encircle the teeth 14 as shown Figs. 1 and 2 and with a central bridge member 23 adaptedto rest upon'the face of the tooth shown in Fig. 2, and the cross head portion ofthe clasp 21 is provided with an aperture 24 adapted to receive the shank of a pin or part25 shown in detail in Fig. 7. i

The pin or part 25 is provided withan enlarged head 26 andfin the construction shown in Figs. 1 to 9 inclusive, the head 26 is cut away as shown at 27 In mounting the clasp 21in connection withthe denture 1.5 I employ an attaching plate 28 and shield member 29 shown in detail in Figs.. 8 and 9 of the drawing. The plate 28 may be .provided at its upper edge with an elongated aperture 80 open outwardly therethrough and-said aperture is enlarged to form a sub stantially'circular aperture 31. The shield member 29 is of less vertical demensionsthan the plate 28, and approximately the same transverse dimensions as saidpla-te and is provided with a recess 82 on the inner face thereof to receive the head '26 of the pin or part 25, and the top portion 33 of the member 29 is provided with a rectangular projection an adapted to enter the aperture 32 in the plate 28 as shown in Figs. 3,

one upon another with the head 26 of the pin or part .25. within the recess and with the shank of said pin or part pro ect-- ing through the aperture 31 in the plate 28, and said parts thus connected are placed in the recess 35 and secured in position by soldering or otherwise, in which the surrounding body 36 otthe plate 16 oi the denture securely holds and retains the

parts

28 and 29 in connection therewith. and the rectangular projection 23% on the shield member 29 prevents solder or the like from passing down around the pin or or into the recess 32 which would effect the operation of saidpin or part, and also serves to limit the upward niovement of the pin or part in its supports. Theclasp 21 may now be secured to the projecting portion oil the p11 or part by riveting, soldering or otherwise, and after the usual grinding and finishing of the complete denture the saniewill be ready for use.

' In applying the denture in themoutli or mounting the same upon the natural'teeth13 and 1%, it will be apparent that the clasp 2-1 will be free to oscillate in the denture proper as well as free lo move vertically and laterally therein by reason of the clear ance allowed between the shank of the pin or part 25 and the aperture 31, as clearly shown at 87 in Fig. 5 of the drawing. The oscillatory movement of the clasp will be limited in the construction shown in Fig. 4: by the cut oil portions 27 of the head 26 striking the top wall of the recess'32 in the shield member 29 as will be apparent. Thisconstruction will provide a smooth and unobstructed outer face to the denture where the movable clasp 21 is mounted in connection therewith, and while I have specified a specific manner of mounting the

separate parts

21, 25, 28and 29 together and to the. denture proper, it will be understood that I am not necessarily limited to this method of procedure as said parts may be connected in any desired manner.

In Fig. 10 of the drawing, I have shown a slight modification in which the head 26 of the pin or part 25 is cut away as shown part 25' at 38 and the upper Wall of the recess 0' is made t -shaped in form as shown at 39 .to permitoi the oscillation of the pin,

shown a specific form of denture,bridge or plate work that I am not necessarily limited to the character of denture employed, the invention consisting in the method of mounting a-movable clasp in connection with any kind or class of artificial denture,

and various changes in and modifications of the'construction herein shown and described may be made, within the scope of the appended claims, without departing from the spirit of my invention or sacrificing its advantages. 7

Having fully ClESCllbQCl' my invention,

It will be apparent that while I. have what I claim as new and desireto secure by Letters Patent is I 1. In an artificial denture device, a denture body, an attaching plate and a shield mem her mounted in connection with each other to form a recess therebetween, said plate and member when connected being adapted to be secured to the denture body, a pin or part loosely mounted in connection with said plate and member and provided with an enlarged head located in said recess, the shank of said pin or part projecting through said plate, and a tooth clasp secured to the projecting portion'ofsaidpin or part.

2. In an artificial'denture device, a denture body, an attaching plate, and ashield member mounted in connection with each other to'form a recess therebetween, said plate and member when connected being adapted to be secured to the denturebody: a pin or part loosely mounted in connection with said plate and member and provided with an enlarged head located in said recess, the shank of said pin or part projecting throu' 11 said plate, anda tooth clasp securedto t e projecting portion of said pin or part Whereby said tooth clasp and pin or part are loosely mounted in connection withflsaid denture body. 7 :5

3. The herein described means formounting a-movable clasp in connection with a denture body comprising a unit composed of separate parts adapted to be imbedded in.

said denture body, and a pin or part per-' manently retained in and loosely mounted in connection with said unit and projecting therefrom.

4. The herein descrlbed ine'ans'for mounting a movable clasp in connection with a denture body, comprising a unit composed of an attaching plate and shield member adapted to be imbedded in said denture body, and a headed pin or part adapted to be permanently retained in said unit and loosely mounted therein.

5. A movable clasp mounting for artificial dentures of the class described comprising an attaching plate, shield member and a pin or part, said parts being adapted to be connected in such manner as to retain the pin or part in and between said attaching plate and shield member with the pin or part projecting therefrom and capable of movement therein.

6. A movable clasp mounting for artificial dentures of the class described comprising an attaching plate, shield member and a pin or part, said parts being adapted to be con nected in such manner as to retain the pin or part in and between said attaching plate and shield member with the pin or part projecting therefrom and capable of movement therein, and a tooth clasp adapted to be secured to the projecting portion of said pin or part.

7 A movable clasp mounting for artificial dentures of the class described comprising an attaching plate, shield member and a pin or part, said plate being provided with an elongated aperture enlarged at its inner end, said member being provided with a recess and with a projection adapted to enter a part of the aperture of said plate and said pin or part being provided with a head adapted to be located in the recess of said member and with a shank projecting loosely through the enlargement of the aperture in said plate.

8. A movable clasp mounting for artificial dentures of the class described comprising an attaching plate, shield member and a pin or part, said plate being provided with an elongated aperture enlarged at the inner end, said member being provided with a recess and with a projection adapted to enter a part of the aperture of said plate and said pin or part being provided with a head adapted to be located in the recess of said member and with a shank projecting loosely through the enlargement of the aperture in said plate, and a tooth clasp adapted to be secured to the shank of said pin or part.

9. The combination with an artificial denture device of the class described, of means comprising connected members adapted to be embedded in and secured to said denture body, a pin or part loosely supported in connection therewith, said pin or part being contained within said means and projecting therefrom, and a tooth clasp mounted on the projecting portion of said pin or part.

10. The combination with an artificial denture device of the class described, of means comprising connected members adapted to be embedded in and secured to said denture body, a pin or part loosely supported in connection therewith, said pin or part being contained within said means and projecting therefrom, a tooth clasp mounted on the projecting portion of said pin or part, and means on said pin or part within said first named means and cooperating therewith for limiting the movement of said pin or part in predetermined directions.

In testimony that I claim the foregoing as my invention I have signed my name this 15th day of March, 1922.

LAWRENCE A. KIANDER.