DE9216670U1 - Quick transfer sheet for dental articulators - Google Patents

Description

Transfer arches for dental articulators or denture simulators basically have the task of incorporating a patient’s jaw models into the device in a position analogous to their anatomical situation.

A distinction is made between precise transfer bows, the main components of which have preferably previously served as hinge axis localizers and are then converted into transfer bows and the so-called arbitrary or quick transfer bows, which transfer the patient's values to the articulator.

The arbitrary quick transfer arches differ in the form of their opening movement, i.e. there are so-called scissor quick transfer arches and those that move the ear olives symmetrically parallel to the anterior bracing.

Explainably, ear tips are components of the quick transfer arches, which are inserted into the patient’s ear canals and provide support.

With most quick transfer arches, the arch is then either used in the practice to install the upper jaw model or the arch is sent to the laboratory with its bite plate and the corresponding models for model installation.

The latter, however, has the disadvantage that the transfer sheet is not available to the practitioner for a certain period of time, or that the practitioner has to keep several of these expensive devices in his possession. The risk of damage has not even been discussed in detail here.

With an arch system currently on the market, it is possible to connect the bite fork in a holder, preferably using plaster, to a support and send this unit to the laboratory, which is then able to install the upper jaw model accordingly. Here, too, the disadvantage should be mentioned that the support itself is blocked for the duration of the installation.

The object of the invention is therefore to design a quick transfer arch that is able to capture the corresponding jaw situation of a patient, ie the spatial position of his jaw in relation to the skull, and to simply send the determined values with a bite plate to the laboratory, which adjusts these values in its arch using an identical quick transfer arch and connects the upper jaw model to the corresponding articulator.

The invention will now be explained in more detail with reference to claims 1-8 and figures 1-2.

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This shows

Figure 1 shows a schematic view of the

entire device,

Figure 2 shows a schematic side view of the

Contraption.

Figure 1 shows a schematic top view of the entire device, with the middle part

(I) and the fixation screw (18) are assumed to be known.

The cross arms (2,19) are also shown as known in the variant shown in the vicinity of the middle section (1), but each end laterally in a round material area (20), which (1) in turn carries the rotatable alignment arm (15) fixed on both sides. In addition, the middle section (l) is fixed with an angle scale

(II), with the upper edge of the middle part (1) aligned with the O-mark of the angle scale (1).

The side arms (21,21*) are mounted to the side of the alignment arms (15) and can be fixed in rotation using the fixation screw (17). These side arms (21) carry the length-adjustable earpieces (8,10) at their ends, which can be locked in the end position using the fixation screws (23). Because the plate element (5) with its bite plate (7), which is held in the holder (6) and with the middle part (1) by the screw element (12) and the guide (22), prescribes a fixed position, it is necessary that the side arms (21,21') are also length-adjustable (21') and that they can be moved in a guided manner and fixed by the screw element

At the same time, it should be emphasized that this option of changing the length via scaling (24) allows the corresponding value for the respective side to be transmitted to the laboratory. It is also possible to communicate the length of the ear olive (8,10) to the laboratory using scaling (9).

Another important value from a laboratory perspective is the angular relationship between the arms (21,21') and the alignment arm (15), which is set as parallel (26) to the preferred reference plane, e.g. the Frankfurt horizontal.

The Frankfurt horizontal is the plane resulting from the two lower edges of the bony auditory canals and the lower edge of a bony eye socket.

The great advantage for the practitioner is that he can send the exchangeable bite plate (7) made of plastic or metal, which is filled with the corresponding registration material, to the laboratory with the determined values, so that the facebow remains as such in the practice and can be used with a new bite plate (7) for a new patient case.

Figure 2 shows a schematic side view of the quick transfer bow. It is highlighted in detail that the angle marking flag (11) is attached to the middle section (1) via bolts (27), which allows the inclination of the jaw model via the bite plate (7) to the corresponding reference plane, which was determined or selected with the alignment arm (15), to be read off and sent to the laboratory by the position of the side arms (21). The same face bow is used in the laboratory, whereby the bite plate (7) is inserted into the holder (6) of the plate element (5) and the corresponding side arm, angle and olive values are adjusted.

The laboratory can now transfer the upper jaw model to the articulator by symmetrically moving the side arm parts (2,19) together using block (1). The upper jaw model is then installed in the usual way.

Claims (1)

EXPECTATIONS 1. Quick transfer bow for dental articulators, characterized, that the quick transfer arch is suitable for use with an exchangeable bite plate (7) to enable the laboratory to adjust an identical quick transfer arch using values determined on the patient and to fix the upper jaw model in the articulator in a known manner using the bite plate (7). 2. Quick transfer bow for dental articulators according to claim 1, characterized in that it consists of a central part (1) which is able, for example via a gear wheel, to extend the cross arms (2,19) symmetrically and to fix them (18). 3. Quick transfer sheet according to claim 1,2, characterized in that the alignment arch in the area of the side arms (2,19) is preferably made round (20) and the middle part (1) is preferably provided on both sides with a solid and transparent angle plate (11) and alignment arms (15) which can be fixed, wherein the scaling of the angle plate (11) preferably extends over 180° and wherein the 0° line or alignment runs along the upper edge of the middle part (1). 4. Quick transfer sheet according to at least one of claims 1-3, characterized, that preferably an extendable side arm element (21, 21') is arranged on either side of the alignment arms (15), which can be rotated and locked by means of a fixing screw (17), wherein the scale (24) and locking screw (23) make it possible to position the respective ear olive (8, 10) with its length scale (9) and its locking screw (21) accordingly and to fix it by means of the screw element (23). 5. Rapid transfer sheet according to at least one of claims 1-4, characterized, that the actual bite plate (7) is mounted in the receptacle (6) of the plate element (5), which is connected to the middle part (1) via a guide (22) and fixation screw (12) by means of an extension tongue (13). 6. Rapid transfer sheet according to at least one of claims 1-5, characterized, that the bite plate (7) is made of plastic or metal. Quick transfer sheet according to at least one of claims 1-6, characterized, that the bite plate (7) is suitable for receiving a corresponding registration material. 8. Rapid transfer sheet according to at least one of claims 1-7,
characterized, that the quick transfer bow can be extended symmetrically via the cross arm parts (2,19) and can be adapted to the articulator via the ear olives (8) with a corresponding holding element (24,25), wherein the skull plane can be transferred to the articulator via the alignment arms (15).