SE466888B

SE466888B - Anchoring device for a removable dental prosthesis

Info

Publication number: SE466888B
Application number: SE9003116A
Authority: SE
Inventors: Bertil Mattsson
Original assignee: Bertil Mattsson
Priority date: 1989-10-03
Filing date: 1990-10-01
Publication date: 1992-04-27
Also published as: SE8903234D0; SE9003116D0; SE9003116L

Abstract

An anchoring device for a removable dental prosthesis 10 of the denture type comprises at least one resilient clamp element 11 with two free end sections 11a which, with two curved fork parts, project radially out from the prosthesis base 10a in the direction of the transverse plane, and grooves 12 for the said free end sections are cut in the mesial and distal surfaces of the support tooth S. <IMAGE>

Description

466 888 2 eliminera skadlig hävstángsverkan. Dessutom finns hos dem flera för matrester tillgängliga små utrymmen, när protesen är påsatt. 466 888 2 eliminate harmful leverage. In addition, they have several for food scraps available small spaces, when the prosthesis is attached.

Föreliggande uppfinning har till uppgift att åstadkomma en ytterst enkel förankringsanordning av det inledningsvis anför- da slaget, som är billigare än de av ett flertal olika komponen- ter bestående anordningarna, som medger att stället för anslut- ningen till stödtanden kan förläggas mycket nära tandköttet, som efter pásättningen inte uppvisar några hålrum i vilka matrester kan tränga in, och som i sin helhet kan framställas i det tandla- boratorium vilket anfärdigar protesen, så att det inte längre be- hövs att i laboratoriet hålla i lager diverse fabrikstillverkadei komponenter.The present invention has for its object to provide an extremely simple anchoring device of the initially stated which are cheaper than those of a number of different components. existing devices, which allow the place of connection the attachment to the supporting tooth can be located very close to the gums, which after application does not show any cavities in which food residues which can penetrate, and which can be produced in its entirety in the laboratory, which makes the prosthesis, so that it is no longer needed to keep in stock various factory-made products in the laboratory components.

Uppfinningen kännetecknas av de särdrag som framgår av närslutna patentkrav, och den kommer nu att förklaras närmare med hjälp av bifogade schematiska ritningar, vilka avser utförings- exempel, och i vilka fig 1 visar i planvy en täckprotes med en förankringsanordning enligt uppfinningen i påsatt läge, fig 2 är en perspektivvy av protesbasens främre parti hos ett alternativt utförande av protesen enligt fig 1, varvid protesbasens övriga delar samt tandraden har för överskådligheten utelâmnats, och fig 3 är en perspektivvy av en för mottagande av protesen enligt fig 1 preparerad stödtand.The invention is characterized by the features which appear from related claims, and it will now be explained in more detail by means of the accompanying schematic drawings, which relate to example, and in which Fig. 1 shows in plan view a cover prosthesis with a anchoring device according to the invention in the mounted position, Fig. 2 is an perspective view of the anterior portion of the prosthesis base of an alternative making the prosthesis according to Fig. 1, wherein the rest of the prosthesis base parts and the row of teeth have been omitted for the sake of clarity, and fig 3 is a perspective view of one for receiving the prosthesis of FIG 1 prepared support tooth.

Med termen "transversalplan" menas i föreliggande be- skrivning och i närslutna patentkrav ett plan som hos en upprätt stående person förlöper horisontellt.The term "transverse plane" in the present invention means writing and in related claims a plan as in an upright standing person runs horizontally.

I en täckprotes 10 med en protesbas l0a och en tandrad l0b är på konventionellt sätt två fjädrande klammerelement 11 in- bäddade med sina delar 11B, medan de vart och ett med sina två fria ändar lla radiellt framskjuter ur protesbasen 10a och bildar en matrisdel. Med "radiellt" menas i föreliggande beskrivning och i närslutna patentkrav en i huvudsak vinkelrätt mot tandraden förlöpande riktning.In a cover prosthesis 10 with a prosthesis base 10a and a row of teeth 10b, in a conventional manner two resilient clamping elements 11 are embedded with their parts 11B, while they each with their two free ends 11a radially project from the prosthesis base 10a and form a matrix part. By "radial" is meant in the present description and in related claims a substantially perpendicular to the tooth row extending direction.

Medan klammerelementens ll delar llB, för att kunna vara helt inbäddade i protesbasen 10A, är på känt sätt krökta i motsvarighet till protesbasens välvning, ligger deras två fram- skjutande, i huvudsak lika långa fria ändpartierna lla i ett plan, närmare bestämt i transversalplanet.While the clamping elements ll divide llB, in order to be completely embedded in the prosthesis base 10A, are curved in a known manner in equivalent to the arch of the prosthesis base, their two sliding, substantially equal length free end portions lla in one plane, more precisely in the transverse plane.

Dessa fria ändpartier lla bildar hos varje klammerele-These free end portions 11a form at each staple relay

Claims

466 888 3 ment 11 two fork legs which are shaped in accordance with the contour of the support tooth S in the transverse plane (dashed in Fig. 1), i.e. they are so bent outwards, as best seen in Fig. 1, that they are substantially in the form of a pair parentheses (). In the support tooth S, and preferably only on its distal and mesial surfaces, grooves 12 for receiving the free end portions 11a are ground, and it should be obvious that these grooves 12 can be placed very close to the gums, so that the otherwise occurring harmful the lever effect is minimized. In the present invention, not only one, for example by means of a cap or the like can be used as a supporting tooth. prepared, tooth or tooth root, but for example also a tooth that previously, when a prosthesis was not yet relevant, has been provided with an artificial casing such as a crown, jacket, etc., because all preparation of the tooth needed is such an insignificant procedure as grinding of the two relatively shallow grooves 12 in the distal and medial surfaces. When the prosthesis is pressed on the supporting tooth or the supporting teeth, which thus themselves fulfill the function of a partition part, the free end portions 11a are inserted with snap effect in said grooves 12. While it is of course possible to produce the two legs of the staple element of two independent, and each wires 11b ', 11b "embedded in the prosthesis base, as shown in Fig. 2, it is advantageous to use a single wire with the part 11B embedded in the prosthesis U-shaped curved, as shown in Fig. 1. The anchoring device according to the invention is of course useful even when only one support tooth is available

Device for anchoring a removable denture (10) to one or two support teeth (S) by means of at least one resilient clamping element (11) embedded in the prosthesis base (10A) with two protruding from the prosthesis base as fork legs, extending in the transverse plane, and in substantially equally long, resilient free end portions (11a) forming a matrix portion, characterized in that the prosthesis has a row of teeth (10B) with gaps for each support tooth, that said free end portions projecting radially in the respective door and 466 888 4 gaps and in a manner known per se are formed in accordance with the contour of the supporting tooth in the transverse plane, and that in the mesial and distal surfaces of the supporting tooth or the supporting teeth are close to the gums, grooves extending in the transverse plane (12) are ground for said free end portions, so that these supporting teeth themselves fill the function of a partition part.

Device according to claim 1, characterized in that the embedded parts (11B) of the clamping element also extend radially.

Device according to Claim 2, characterized in that a free end portion embedded in the prosthesis base, U-shaped and curved in accordance with the arch base of the prosthesis base (11B) adjoins the free end portions formed in accordance with the contour of the support tooth in the transverse plane.

Device according to one or more of the preceding claims, characterized in that the per se known method comprises two mutually spaced doors with clamping elements for two support teeth.

Device according to one or more of the preceding claims, characterized in that the grooves are ground in a cap or crown of a support tooth.