DE9210037U1 - Dental articulator - Google Patents

Description

Dental articulators as denture simulators are known as so-called Arcon or non-Arcon articulators.

In addition to the joint path inclination, most mean value articulators and in particular the fully programmable articulators have the option of adjusting the Bennett angle, which is done in very different ways for the various articulator types.

Only in non-Arcon articulators is this implemented almost uniformly and, given the current state of the art, requires a separate condylar box element, which is machined using milling and turning technology and ultimately requires an additional intervention in the condylar column in the form of a hole and a fixation screw receptacle.

In particular, if the joint path inclination can also be changed, a rotatable and fixable additional element is required, which requires additional turning, drilling and/or milling work.

It is therefore obvious that the devices are expensive to manufacture, so that many laboratories prefer bi-articulators with fixed Bennett angles and fixed joint path inclinations for investment reasons, not exactly for the benefit of the patient.

The object of the invention is therefore to modify the articulator in the area of the condylar column so that the entire device can ultimately be offered at a significantly more favorable price-performance ratio in line with the market.

Of course, the enormous price-reducing advantages of aluminum and/or zinc die-casting should be used, so that only rework is required.

The invention will now be explained in more detail with reference to claims 1-9 and the description of figures 1-4a.

This shows

Figure 1 shows a detailed view of a

Articulator in the area of a condylar column in the side view.

Figure 2 shows a detailed view of a functionally extended (articular inclination adjustable) articulator condylar column in the condylar box area,

Figure 3 shows a detailed view of the

Condylar column in front view,

Figure 4 schematically shows the use of the condylar box to change the inclination of the joint path,

Figure 4 a shows a schematic cross-sectional drawing of this insert.

Figure 1 shows a schematic detailed view of an articulator in the area of a condylar column (1) in the side view.

This is a non-Arcon articulator, which was manufactured in such a way that the round material of the condylar column (1) was flattened in the area of the condylar box (2), whereby the condylar ball (7) is accommodated in the condylar box designed in this way at a fixed articular path inclination, e.g. 30° to the articulator upper jaw arm, so that it is mounted in the center of the extended condylar column (1) on shaft (22) (see Figure 2) in a neutral position. This neutral position is secured by the centric lock (8), while slipping out of the condylar path (13) is prevented by the screw element (9).

The actual inventive idea, however, is that the Bennett angle is set in such a way that the condylar column (1) can be adjusted by loosening the condylar foot (3), so that the desired Bennett angle can be set using the scale (10) and the Bennett angle can be set by tightening the condylar foot (3) using the screw element (14). Pin elements (4,5) or recessed grips (11,12) are used to make this movement possible in a subtle way. It should be emphasized that the extension (25) of the condylar column (1) is machined to fit in the area of the articulator lower jaw arm (6).

At the end of Figure 1, it should be mentioned that the possibility of using a facebow is of course given. However, this was not shown in the drawing in Figure 1.

Figure 2 shows a schematic detailed view of a functionally expanded articulator condylar column (1') in the area of the condylar box. We can see the condylar column (1'), which has a circular enclosure (15) in the upper part, which is suitable for receiving element (16) which, by means of guides (17,24) and locking screw (18) as well as scaling (26,27), is suitable for setting the desired joint path inclination via the guide (13').

Furthermore, it can be seen that the centric locking is released here, for example, by eccentrics (19, 20), whereby at the same time a further eccentric or a screw element (21) is suitable for preventing the condylar ball (7) from accidentally slipping out during dental work.

Of course, the entire part (1',15) as well as the rotating element (16) can be manufactured using the die-casting process, so that only reworking is required. The possibility of machining is of course not excluded.

Figure 3 shows a schematic detailed view of the condylar column (1') with the condylar box (15,16) in the front view. Any further explanation is superfluous in this drawing.

Figure 4 shows the condylar track element (16) in detail, whereby it can be seen that a safety element is installed here, schematically with the eccentric (19, 20) for the centric locking and the schematic locking screw or the like (21), which makes it impossible for the condylar ball (7) to slip out during dental work.

Figure 4 a shows section A of Figure 4, where only the peripheral milling (24) is mentioned,

Claims (9)

EXPECTATIONS 1. Dental articulator, characterized in that the respective condylar column (1, 1') is firmly connected to the condylar box (2), so that the Bennett angle can be adjusted by loosening the condylar foot (3) with the help of lever elements (4, 5) and can be fixed by pressing the respective condylar foot (3) onto the articulatoi—lower jaw arm (6) and that, in addition, the articular path inclination can be adjusted (17, 24) and locked (18). 2. Dental articulator according to claim 1, characterized in that the Bennett angle setting is suitable for Arcon and non-Arcon articulators. 3. Dental articulator according to claim 1, 2, characterized in that the lever elements (4, 5) are shaped as pins. 4. Dental articulator according to at least one of claims 1-3, characterized in that both the condylar columns (1, 1') and the condylar feet (3) are provided with grip recesses (11, 12). 5. Dental articulator according to at least one of claims 1-4, characterized, that the condylar column (1,1') in the area of the fixed condylar box (15) has a rotatable guide element (16) for adjusting the joint path inclination (13'), whereby the centric locking of the condyle (7) is ensured by preferably extenders (19,20), and that the condylar ball (7) can be prevented from sliding out of the guide path (13') by preferably extenders or the like (21), whereby screw elements (8,9) are used when the joint path inclination cannot be adjusted. 6. Dental articulator according to at least one of claims 1-5, characterized, that the guide element (16) is preferably rotatably mounted by the peripheral milling (24) and the screws and/or bolt elements (17) and can be fixed in the corresponding position by means of the screw element (18). 7. Dental articulator according to at least one of claims 1-6, characterized, that the corresponding joint path inclination can be read off via scaling (26,27). 8. Dental articulator according to at least one of claims 1-7, characterized, that the dental articulator is suitable for use with a facebow (23). 9. Dental articulator according to at least one of claims 1-8,
characterized, that the elements articulator upper jaw arm, articulator lower jaw arm (6) and the condylar columns (1,1') are preferably prefabricated as aluminum die-cast parts.