DE3436259C2 - Device for measuring and / or working on a dental master model for the production of dentures - Google Patents

Abstract

A device for measuring and / or processing a master model for the production of dentures is provided with a wax receptacle (1) which has a wax space (2). A heating device (4) and at least one vertical guide surface (6) are also provided. In the lower area there is an outlet opening (5) for liquid wax in the area of the guide surface (6). In addition, there can be a second guide surface (7) for a drawing pen (9) and a third guide surface (10) for an undercut knife (11).

Description

Because the housing of the wax container is provided with a second guide surface, the device according to the invention fulfills a further function. This way you can get a separate Save the facility for determining the equator. This means that to measure the equator none separate device must be clamped and aligned exactly in the swivel arm of a tripod.

Characterized in that the wax receptacle is provided with a third guide surface on or into the the undercut knife is arranged or installed, the device according to the invention fulfills another Function in its capacity as a single unit In this way, the device according to the invention is shown in FIG optimally exploited It can in fact now practically all necessary operations with one single device.

This means e.g. B that now a simpler tripod can be used with just a single swivel arm. Transforming or setting up work for the individual Operations can now be omitted.

The combination device according to the invention makes it possible to work on the master model significantly carry out more efficiently and thus faster.

The heating device can be a heating rod inserted into a bore in the wax receptacle, the is provided with a corresponding energy supply, generally electrical current

So that the heated and liquid wax cannot run out of the outlet opening in an uncontrolled manner be provided that this can be closed by a flap

The second guide surface will advantageously be arranged opposite the first guide surface. In this case it is only necessary, after measuring the equator, to open the wax container Rotate 180 ° to then apply the wax to be able to.

The wax receptacle can in principle have any shape. It is only essential that he Has guide surfaces which are generally vertical and at the equator of the to be measured and to machining tooth can be guided along.

So z. B. the wax receptacle have an elongated rectangular shape, the first and the second guide surface are the narrow sides.

The undercut knife with its button can be on a broad side of the wax container, whereby the stylus protrudes laterally.

For reasons of space it can be provided that the narrow side of the wax receptacle on which the holder with the pen is located and on which the stylus protrudes, laterally through one or two extensions is spread apart, the holder and / or the stylus being located at the end of an extension.

The expansions allow the corresponding facilities on the wax receptacle in one greater distance from each other, making it easier to work.

It is advantageous if the wax receptacle üui the LJntsrseits a n "ch inside" ezo ***** ¹ ** "AnR" nwandbereich has *.

With this configuration, the device according to the invention can also be used in confined spaces insert. Due to the inwardly drawn wall area, the device can be inserted into gaps in the dentition be retracted.

The shape of the drawn-in wall area can be any. In a simple way it can be in the form of a Part of a circular arc be formed.

If the trailing edge of the first guide surface is a If the wiper edge is designed for excess wax, the wax can be applied in a single operation be terminated.

An exemplary embodiment of the invention is described in principle below with reference to the drawing. Eszegt

F i g. 1 is a side view of an embodiment of the device according to the invention;

2 shows a longitudinal section along the line H-II of Fig. 3;

F i g. 3 shows a plan view of the device according to FIG. 1;

Fi g. 4 shows a plan view of a further exemplary embodiment of the device according to the invention in a modified form Shape.

The wax receptacle 1 has an elongated parallelepiped shape. The wax container 1 is provided with a wax chamber 2 and a bore 3. Wax is introduced into the wax chamber 2 and into the Hole 3 can be inserted as a heating device, a heating rod 4. As a material for the wax container 1, a highly conductive material is selected, which quickly liquefies when the heating rod 4 is switched on of the wax occurs in the wax chamber 2. In this way, the wax can pass through an outlet opening 5 flow out in the lower region of a narrow side of the wax receptacle designed as a guide surface 6. The opening wall of the outlet opening can protrude slightly beyond the guide surface 6.

On the side opposite the guide surface 6 there is a second guide surface 7 with a holder 8 for a pen 9. The holder 8 for the pen 9 is not described in detail. It can be anything within the scope of the invention. It should only be designed so that the pen 9 can be easily readjusted and replaced if necessary.

On a broad side 10 of the wax receptacle 1 is an undercut knife or measuring device 11 with a Stylus 12 arranged. The stylus 12 protrudes from the side of the wax receptacle. This can z. B. on a narrow side, z. B. be the case on the guide surface 7, which thus has a double function, or on the broadside.

If the stylus 12 protrudes from the guide surface 7, it is advantageous if this guide surface enlarged accordingly. For this purpose, the wax receptacle 1 is provided with a lateral extension 13, on which the holder 8 with the pen 9 is arranged. This way there will be a greater distance between the pen 9 and the stylus 12 reached.

The form of the extension can be any. If necessary, a second extension can also be provided in which then lies the undercut knife with its stylus

As shown in FIGS. 1 and 2 can be seen, the wax

1 on Ηργ T IntAi * cj »ito with *» ΐηΛτη πολΙι

provided inwardly drawn wall area 14, which has a partial circular arc shape. In this way, the Device can also be retracted into tight gaps in the dentition. The device according to the invention now works in the following way:

To carry out the necessary work, the wax container 1 is inserted into the swivel arm of a

nes tripod clamped (not shown). This can e.g. B. take place via the heating rod 4.

First, the guide surface 7 is brought up to the tooth to be machined with the drawing pen 9 and moves the wax container around the tooth. In this way, the pen 9 will be accurate the equator of the tooth is drawn

Then the undercut knife 11 with its guide surface is used to measure the undercut of the tooth 10 or with the correspondingly expanded guide surface 7 applied to the equator, with the protruding stylus 12 measures the undercut, which is indicated on a scale 15 in the usual manner will. The structure and mode of operation of the undercut knife 11 is of a known type, which is why it is this will not be discussed in more detail at this point.

After determining the undercut, the wax receptacle 1 is again a vertical one Axis rotated so that the guide surface 6 can be placed on the equator of the tooth. Now becomes the heating element 4 switched on, the liquid wax can flow out of the outlet opening 5 and thus directly into the undercut area be introduced so that this is filled up to the equator. When the trailing edge of the Guide surface 6 is not designed as a wiper edge at the same time, it is only necessary with a Using the appropriate scraper, scrape off any excessively worn wax.

The undercut measuring device can form a structural unit with the wax receptacle 1, i. H. in the same Housing be housed, or it is flanged to the wax container 1, for. B. by Screwing, gluing and the like.

1 sheet of drawings

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Claims (9)

1 2 Master model for the production of dentures according to the claims: type defined in more detail in the preamble of claim 1 For measuring and working on a 1. Device for measuring and / or Ar master model, which is used for the production of dentures, work on a dental master model for heart 5 z. B. of prostheses is required, are several Arstellung of dentures, with a built-in elec- tric walkways required. tric heating device for melting wax, with In a first step the equator of the must be beareinem Undercut knife and be established with a vertical agile tooth. This is so far Pen in a holding device, which is carried out with HDfe a device on which a drawing can be guided parallel to itself, since the pen is fastened in such a way that it is parallel to itself characterized in that it is movable in a single vertical orientation which cheeks The following units are summarized as follows: the equator is drawn by driving around the tooth In a second step, a a) a wax receptacle (1) with a so-called undercut knife, which was attached to the previously Waxing room (2), to which the electrical heating system has been attached, for instruction (4) is assigned, the section of the tooth measured. The exact destination b) vertical guide surfaces (6, 7, IC) on the outside of the undercut is required so that, for. B. the Klam wax container (1), one of which can find support in the lower part of a prosthesis. In a third kingdom To apply wax with an outlet opening, use wax with a wax knife tion (5) is provided for liquid wax, 20 is applied to the undercut area of the tooth. c) the on the second guide surface (7) vorgese- Finally removed with a blocking rod, the hene holding device (8) for the pen is provided with a heating rod, the superfluous (9) and wax, for which the blocking stick is practically used as a d) which leads on or into the third guide surface along the equator (10) built-in undercut knife (11). 25 From the DE company publication »Blocking out device D-24/3 from the company "Harnisch + Rieth" 1983 "is a tripod with 2. Apparatus according to claim 1, characterized marked three articulated arms for measuring and blocking out that the heating device is in a Boh- visibly. For this purpose, the corresponding individual devices, tion (3) of the wax receptacle (1) inserted like holding device with a drawing pen, under-heating rod (4) is 30 cutting knife and blocking pin for removing 3. Apparatus according to claim 1 or 2, characterized by excess wax, attached to the articulated arms characterized in that the outlet opening (5) can be moved through one and thus parallel to itself. ne flap can be closed For applying and modeling wax, there are 4. Apparatus according to claim 1, characterized in that the wax knife is known which records with a wax, that the second guide surface (7) is the receptacle and partly also with a heating element Guide surface (6) are provided for the wax application direction (see e.g. DE-GM 77 09 337, opposite is DE-GM 80 20 771 and DE-OS 23 54 830). 5. Apparatus according to claim 4, characterized in that the known working methods are relatively complicated that the wax receptacle (1) a borrowed and time-consuming and thereby cause stretched Has a rectangular shape, the corresponding costs. For reasons of rationalization ste and the second guide surface (6 and 7, respectively) which are generally a tripod with at least two Narrow sides are. Swivel arms are used (see e.g. the DE company 6. Apparatus according to claim 5, characterized by “block-out device D-24/3”), whereby the Meizeichnet, that the undercut knife (11) can be processed faster on a star model, but The broad side of the wax receptacle (1) lies, 45 the tripod is due to its complexity with more than one the stylus (12) protrudes laterally. swivel arms, in turn, a corresponding co- 7. Device according to claim 6, characterized in that the factor is identified. draws that the narrow side of the wax receptacle The present invention is therefore the object container (1) on which the holder (8) is based, a device for measuring and / Drawing pen (9) is located and on which the stylus (12) 50 or working on a dental master model too protrudes sideways through one or two widening holes, with which the required work can be carried out more quickly gene (13) is spread apart, at the end of an er and simpler with less equipment Extension of the holder (8) and / or the stylus can be carried out. (12) lie. According to the invention, this object is achieved by the im 8. Device according to one of claims 1 to 7, 55 claim 1 mentioned features solved. characterized in that the wax intake instead of a cumbersome and relatively imprecise container (1) on the underside an inward application of the wax using a wax knife pulled outer wall area (14). ses it now via the wax container directly into the 9. Device according to one of claims 1 to 8, introduced undercut area. Through the heat, through it characterized in that the trailing edge of the 60 direction will solidify the wax to a sufficient extent Guide surface (6) as Abstreifksr.tc for superfluous and the stirring ensures an accurate liquid wax is formed. Guided tour on the equator along which it moves will. With this configuration, the Simply wax after marking the equator 65 and apply quickly and very precisely. Due to the fact that the outlet opening at the bottom of the The invention is based on a device is arranged for the approximately area, it opens laterally exactly in the Measuring and / or working on a dental area of the undercut of the tooth.