DE4025684C1 - Method of adjusting orthodontic plate - uses template with bearing surface forming preset angle w.r.t. it - Google Patents

Abstract

The orthodontic protrusion plate can adjust in width and has pressure surfaces on the top jaw plate to bear against the bottom jaw plate at a given angle to the occlusion plane. The surfaces and top plate adjuster form a single unit and a template has an opening to take the supports for the adjusters. Directly adjoining its opening (79) the template (66) has a bearing surface (77, 78) to form the preset angle with the plane of the template, pref. 60 degrees. Once the template and adjuster have been fitted with pressure webs, the template fixer needle (74, 76, 75) is placed between the incisors of the bottom jaw cast and the template is lined up in the lingual sense and a marking line drawn from the gap between the cast incisor so the centre line marking on the template can be aligned with this, and when the cast and template are joined, the adjuster and webs sit symmetrically on the bottom jaw impression cast. The top jaw model gum area is marked to show the centre of the model and the bottom impression line is then lined up with this marking. ADVANTAGE - Strictly aligned top and bottom jaw models and fittings obtained with aid of template.

Description

The invention relates to a device for producing Orthodontic feed plates according to the preamble of claim 1 and includes a method in which such an apparatus Is used.

Classic treatment devices for functional orthodontics for position shifting from upper jaw and lower jaw or the change in position of the lower jaw to upper jaw Rows of teeth or dental arches are e.g. B. activator, bionator, etc., which the forces of orofacial muscles, but especially the forces on the jaw and teeth or Transfer rows of teeth that arise from the fact that in feed devices for the Lower jaw the forced provision of the lower jaw leads to reciprocal forces, d. H. if the lower jaw wants to come back again, it will be replaced by a Apparatus hindered; whereby a force is applied. With the help of such orthodontic Devices it is z. B. possible, the still growing jaw or to shift the row of lower jaw teeth to the front or the tooth opening in the to steer the right path. However, various functional orthodontics perform Devices often fail to achieve the desired treatment result, e.g. B. not if still there is no harmonization of the dental arches. An advancement of the lower jaw with the help of a conventional functional orthodontic device has little Prospect of stability if the dental arches do not match in the therapeutic position.  

For transversely influencing the jaw, i.e. H. for their broadening, are so-called Jaw expansion bolts are known, which consist of two by means of screw spindle to each other adjustable housing parts for pouring into plastic expansion plates with single or double spindle guidance exist (DE-GM 74 13 724, DE-GM 74 41 739, DE 27 03 820 C3).

By embedding folding springs in the plastic plates, it is possible to also in to exert longitudinal forces on the jaw (US 40 26 023), d. H. the To stretch your jaw forward.

Another option, from a pine plate, e.g. B. from a maxillary plate, longitudinal Transferring forces to the other jaw plate consists of both jaw plates to couple near the incisors (Dental Practice, June 15 1956, p. 6; FR 9 81 973; US 44 16 626). The coupling can be to the rigidity to avoid a connecting web to be designed as a torsionally rigid spring (DE-PS 10 41 207).

It is also possible to have a telescopic part between the palate part and the lower jaw part Provide handlebars that have universal joints at their respective ends (DE-PS 11 10 363).

Another way to couple the upper and lower jaw part is to to provide a double screw device with four screws carrying activator parts and which are connected by means of a web (US 44 62 799).

It is also already known to design the upper and lower jaw plate so that they without a direct mutual connection can exert horizontal forces on one another (US 46 71 766). Here, these plates have inclined planes that move towards each other exert horizontal forces on the two plates.  

While the plates known from US 46 71 766 in the rear area of the upper and mandibular plates are provided, there are also plates in which the upper jaw plate has a spur guide in the front area (Müller, G .: The double plate with Upper jaw spur guidance, progress. Orthodontist. 23, H1 and H2, 1962, 243). Run here the spurs or activation mandrels on an inclined plane in the anterior region of the lower jaw plate and create a force when opening and closing the bite, which regulates the sagittal reserve of the lower jaw. Simultaneous stretching of upper and / or lower jaw is with this so-called Schwarz double plate or double feed plate however not possible.

In order to use this Schwarz double plate in addition to the lateral expansion of the upper and / or lower jaw at the same time to advance the lower jaw is one Tooth adjustment device has been proposed on the upper jaw screwing device for the lateral expansion guide mandrels are welded on (DE 34 11 852 C2 = US 45 97 738; F. G. Sander: Can the mode of operation of functional orthodontics Devices can be increased ?, Dental Practice, 12/1985, pp. 479 to 482). The Screwing device consists of two elements, the holes for two Have guide pins and a screw. There is a guide pin on each of these elements intended. This tooth regulating device can be used on the one hand the transverse expansion screws from the maxillary arch to the mandibular arch or vice versa the mandibular arch to the maxillary arch can be adjusted and on the other hand by using the one that is firmly connected to the maxillary expansion screw Active mandrels that slide transversely on the inclined plane when stretched transversely, at the same time regulates the sagittal reserve of the lower jaw to the upper jaw or vice versa will.

A construction bite is required when manufacturing double feed plates. This must be done on the patient. A design bite taken only on patient models cannot make a suitable or functional device production cause, since it is no longer guaranteed that the webs after manufacture of the device the patient's upper jaw plate is parallel to the inclined plane in the lower jaw (A. Weinreich: Production of the double feed plate, practical orthodontics, 2/19, 88, p. 223 to 232).  

With the construction bite, the plaster models of the lower jaw and upper jaw in a fixator or articulator can be locked to each other. The status of the Technique first the plate for the lower jaw with a special plastic template produced. For the mode of operation of the double feed plate, it is very important that the inclined plane to the occlusal plane has a defined angle of about 60 °.

The upper and lower jaw expansion screws are in the current state of the art in Plastic holder or adapter built in, which is only a temporary function as a positioner to have. After completion of the double feed plates, these plastic holders taken away again. To fix the screws well for the crooked To reach the level, a groove for the fixation is made on the plaster model of the lower or upper jaw of the plastic adapter of the expansion screw. Now the screw with the Plastic holder to be waxed. Before setting the angle of the inclined plane it must be checked whether the plastic adapter is straight into the slot in the plaster model was used. In the known method, a piece is used for checking Wire is placed on the edge of the plastic adapter, or the wire is flat on the surface of the plastic adapter. If the adapter is installed straight, the wire runs with symmetrical dental arches right and left in the posterior region z. B. about the Cusp of the first premolars. If the wire runs z. B. in the right posterior region the cusp of the first premolar and lies in the left posterior region distal to the canine, the plastic adapter must first be adjusted. For setting the The angle of the inclined plane from 60 ° to the occlusal plane becomes 1.0 mm or 1.2 mm thick wire bent with the help of a geodiangle to a 60 ° angle, the bent Part has a length of about a quarter of the straight part. This angle wire, which is characteristic of the known method, is placed on the plastic holder, whereupon the model of the lower jaw is used. The long part of the curved The wire must run parallel to the occlusal plane. If the angle is set, the Plastic holder waxed in this position. Before making the lower jaw plate the position of the inclined plane to the upper jaw model is checked. For this purpose, the models of the upper and lower jaw are joined in a fixator and holding the maxillary screw to the inclined plane with pliers as it should be installed later. The maxillary screw is as close as possible the roof of the upper jaw model is brought up.  

If this is the case, the insertable plastic adapter in the lower jaw must continue to move be moved distally. Only when the positioning of the maxillary screw is possible production of the lower jaw plate can begin (Weinreich, op. cit., P. 225 right column to p. 226 left column).

In practice, however, it has been shown that this conventional type of production the feed double plate an exact alignment of the screws, the inclined plastic plane in the lower jaw and the guide bars in the upper jaw is difficult. Often the axis of symmetry of the two guide webs runs in the upper jaw after manufacture the plate is not above or at least parallel to the raphe median plane, d. H. the maxillary Center. It is therefore often necessary in conventional manufacturing methods to have one Correction of the positions of the upper and lower jaw screws in line with the function to coordinate with each other.

A device for producing orthodontic advancement plates is also known, which has a mounting plate with slots for hanging expansion screws (DE 84 09 126 U1). With this device, however, it is not possible to use a Screwing device to be cast into the lower jaw plate in a predetermined angular position to keep.

Finally, there is also a quadrant screw for installation in a four-part orthodontic activator known, the installation using a template with a sheet is made (DE 33 17 575 A1). The quadrant screw to be installed is here provided with grooves and a stop surface. The screw is in a recess of the Sheet metal of the installation template inserted so that the edges of the recess as Guide for the grooves or act as a stop for the stop surfaces. Contact surfaces however, this template does not have a screwing device.

The invention is therefore based on the object of an apparatus and a method to create double feed plates, which are easy and precise Alignment of the maxillary and mandibular screws and the associated inclined plastic level in the lower jaw and the metal guide bars in the upper jaw enable.

This object is solved by the subject matter of claims 1 and 14, respectively.

The advantage achieved with the invention is in particular that on the one hand exact 60 ° alignment of the pressure bars in the maxillary plate and the inclined plane is guaranteed in the lower jaw plate and on the other hand an exact alignment of the Maxillary plate along or parallel to the raphe median plane or line, d. H. Maxillary midline, can be carried out.  

With the help of the template it is in contrast to the conventional one Method of inserting the mandibular screw possible to place it securely, that the screw is neither too distal nor too far mesial. The screw is therefore oriented to the midline of the lower jaw, insofar as there is a middle of the lower jaw or -symmetry line or a symmetry center in the vertical Define or define level, because most biological structures, in particular the lower jaw are not geometrically symmetrical structures. In the invention the three-dimensional determination of the position of the mandibular screw is carried out with reference to the intended position of the maxillary screw. The maxillary screw will placed so that their center slot, the u. a. for the introduction of an adjustment device serves, as parallax free as possible above and in the direction of the maxillary midline lies. The angle of 60 ° between the occlusal plane and the oblique Level is present can be defined according to the invention.

An embodiment of the invention is shown in the drawing and is in following described in more detail. It shows:

Figure 1 installed in the upper and lower jaw and known plates that together serve as a double feed plate.

2 is a plan view of an installed in a lower jaw model gypsum lower plate.

3 is a plan view of an installed in an upper jaw model upper jaw plate.

Figure 4 is a side view of a Oberkieferdehnschraube with two pressure webs and a plastic adapter.

FIG. 5 is a rear view of the maxillary expansion screw according to FIG. 4;

FIG. 6 shows a view from above of an upper jaw expansion screw according to FIG. 4;

Fig. 7 is a first side view of a lower jaw with plastic screw adapter;

FIG. 8 shows a second side view of the mandibular expansion screw according to FIG. 7, rotated by 90 ° with respect to the first side view; FIG.

Fig. 9 is a plan view of the Unterkieferdehnschraube of FIG. 7;

FIG. 10 is a template in the plan view;

FIG. 11 shows the template according to FIG. 10 in a side view;

FIG. 12 shows the template according to FIG. 10 in a view from behind;

Figure 13 is a mask with a hinged mounting member having a lower jaw plate adjusting device carries.

Fig. 14 shows a template with a hinged mounting member which supports a upper jaw plates adjusting device with compressed webs;

FIG. 15 is a ajar to a lower jaw imprint template;

FIG. 16 is a ajar to a maxillary impression template;

FIG. 17 is a mask interposed between upper and lower jaws plaster cast;

FIG. 18 is an original placed on the lower jaw plaster cast template;

Fig. 19 is a template placed on the maxillary plaster cast from below.

In Fig. 1 a per se known double feed plate in a plaster jaw model with an upper jaw 100 and a lower jaw 200 is shown that simulates the view of an open mouth. This double feed plate consists of an upper jaw plate 1 , which is fitted into an upper jaw plaster model 2 , and a lower jaw plate 3 , which is seated in a lower jaw plaster model 4 . The upper jaw plate 1 has a plate 5 made of at least partially translucent plastic, which nestles against the inner surface of the upper jaw 2 and is cast into the holding wires 6 to 10 . The holding wires 8 and 10 are so-called Adam's clips, each of which comprises a molar tooth, while the holding wire 6 is a labial arch that guides the front teeth 13 to 16 . The further holding wires 7 and 9 are clamps, which each engage between two teeth 17, 18 and 19, 20 and thus also serve for holding.

The upper jaw plate 1 of the upper jaw 100 has a gap 21 which divides the plate 1 into two halves. A first pressure or guide web 22 is cast in one half, while a second pressure or guide web 23 is cast in the other half. Both webs 22, 23 are inclined by 60 ° with respect to the occlusal plane, ie the imaginary plane that connects the tooth crowns to one another, the 60 ° angle being measured from the interior of the jaw. A screwing device 24 , with which it is possible to move the two halves of the upper jaw plate 1 horizontally apart or towards one another, is integrally connected to the two pressure and guide webs 22, 23 . Details of this screw device 24 are described below.

The lower jaw plate 3 likewise consists of two halves separated from one another by a gap 25 , which can be moved horizontally to one another by a screwing device which cannot be seen in FIG. 1. This plate 3 is also fastened to teeth by means of various holding clips 26 to 30 .

In FIG. 2, the lower jaw stone model 4 is shown with the lower plate 3 again in a plan view. A flat surface 31 can be seen here, which has an angle of 60 ° to the occlusal plane of the lower jaw. The surface 31 serves as a guide surface for the pressure webs 22, 23 . If the upper jaw 2 is moved against the lower jaw 4 ( FIG. 1), the pressure webs 22, 23 slide along this guide surface 31 and thereby push the lower jaw forward.

The horizontal displacement of the two halves of the lower jaw plate 3 is carried out by a screw device 32 , which corresponds in function to the screw device 24 in the upper jaw plate 1 . The screwing device 32 has an opening 33 which is accessible from the outside and into which a pin can be inserted which permits the screw to be rotated. Details of this screw device are described below.

In FIG. 3, the upper jaw stone model 2 is shown with the upper plate 1 again in the plan view. One can see an adjustment device for the screw device 24 so that the two halves of the upper jaw plate 1 can be moved horizontally.

FIG. 4 shows the side wall of a well-known from DE 34 11 852 C2 helical compression ridge connection, coupled with a plastic adapter part. Of the two pressure bars, only one pressure bar 22 can be seen, which is formed in one piece with a screw device 24 . The screw device 24 has two guide bolts 35, 36 and a screw 37 . By rotating this screw 37 clockwise or counterclockwise, a carrier 38 is moved into or out of the plane of the drawing. A plastic guide or adapter part 39 is connected for the purpose of assembly with the one-piece metal part consisting of two webs 22, 23 and the carrier 38 with the screw 37 and the guide bolts 35, 36 . This adapter part 39 is angled, a smaller leg 40 forming an angle of approximately 120 ° with a larger leg 41 .

The pressure webs 22, 23 are also angled and have a horizontal part 42 , a vertical part 43 adjoining them and a part 44 angled at an angle of approximately 135 °.

In FIG. 5, the compression coil-carrier compound is shown in Fig. 4 again shown in a view from the rear. The apparatus of Fig. 4 is thus rotated clockwise by 90 °, wherein the rotation axis is the vertical axis of the plane of the drawing. It can be seen here that the pressure webs 22, 23 are welded onto the carrier 38 with their upper parts. The welding is preferably carried out using laser technology.

The welding points that make the connection are clearly shown in FIG. 6, which shows the screw-pressure bar connection according to FIG. 4, but in a view from above. The apparatus of Fig. 6 is thus rotated by 90 ° in comparison to Fig. 5, wherein the axis of rotation z. B. is the guide pin 35 . In addition, it is reversed in comparison to FIG. 5. The upper parts 42, 45 of the webs are connected to the supports via the welding points 46 to 49 .

FIG. 7 shows the screwing device 32 for the lower jaw plate 3 known from DE 34 11 852 C2, together with plastic guide plates 50, 51 . The guide plate 50 is inserted through a recess of the guide plate 51, wherein the recess is greater than the inserted by guide plate 50, that is, the plate 51 is pivotable relative to the plate 50 in the direction of the arrow 52nd Of the three guide bolts and screws lying one behind the other in the plane of the drawing, only the front guide bolt 53 can be seen , beyond which the thread of the screw located between the two bolts protrudes. The bolts and screws are embedded in a common carrier 54 . The plate 50 has a sloping slope 55 and a rising slope 56 , which ends in a tip 57 , followed by a falling slope 58 again.

These slopes 55 to 58 can be seen more clearly in FIG. 8, which shows the device according to FIG. 7 after a 90 ° rotation to the right. In addition to the guide pin 53 , an adjusting screw 59 and a further guide pin 60 can also be seen in FIG. 8. The plate 51 has a bevel 61 at its left end.

This bevel 61 leads, as can be seen from FIG. 9, to a sinusoidal outline with the mountains 62, 63 and a valley 64 in between. FIG. 9 shows a view from below of the illustration in FIG. 8, the sides also being interchanged. The plate 50 is pushed through a recess 65 in the plate 51 . Since this recess 65 is larger than the plate 50 , the plate 50 can be moved horizontally. Connected to the plate 50 is the metallic support 54 with the guide bolts 53 , 60 and the adjusting screw 59 .

While the elements described so far are known per se, FIG. 10 shows a template 66 with the features specified in claim 1 in plan view, which is used for the simplified production of the double feed plates. Similar to the elements 39, 50, 51 are only aids for introducing the screwing devices 24, 32 into the respective jaw plates, the template 66 also serves to easily produce orthodontic advancement plates or plates of the same function. The template 66 is about 1 mm thick and is made of transparent plastic. Its outer contour 67 roughly corresponds to the contour of an arch of the jaw. Accordingly, an inner contour 68 is formed, which adjoins the outer contour 67 via roundings 69, 70 . A guide pin 71 is arranged vertically on the template 66 , which can be moved horizontally into a slot 72 of the template 66 and locked at any point of this slot 72 . A screw 73 , which can be rotated with a thickened knurling 74, runs parallel to the template surface and perpendicularly through the guide bolt 71 . The front and rear ends of this screw 73 each end in a needle-shaped pin 75, 76 . Two webs 77, 78 are flanged to the surface of the template 66 and form an angle of 60 ° with the surface. At the starting point of the webs 77, 78 , an opening 79 is provided in the template 66 , which is connected to an opening slot 80 . On the underside of the template 66 there is an elevation 81, 82 to the right and left of the opening slot 80 . For better orientation in the manufacture of the double feed plate, the template 66 is provided with marking lines, inter alia, 83 to 85 and 34 .

The template 66 is shown in a side view in FIG. 11. The angle of 60 ° enclosed between the template surface 86 and the web 78 can be seen here. In addition, a screw 87 can be seen with which the guide pin 71 can be locked.

Fig. 12 shows the template 66 from the other side. Here, the template shown in FIG. 11 is rotated 90 ° counterclockwise around the vertical axis of the drawing plane. In practice, the opening 79 is approximately 1.7 mm by 22 mm. This is followed by a rectangular opening of 4.5 mm by 11 mm, which cannot be seen in FIG. 10 and which leads to the contour 68 via the slot 80 , which is approximately 1.7 mm wide. The slot 72 is approximately 2 mm by 8 mm. The average width of the contour 68 is approximately 35 mm, while the maximum width of the outer contour is approximately 70 mm. The height of the template 66 is approximately 65 mm.

FIG. 13 shows how a device according to FIG. 8 is inserted into the template 66 according to FIG. 11. It can be seen here that the web 50 lies between the two webs 77 and 78 and these webs 77, 78 separate the screwing device 53, 59, 60 from the plate 51 . As a result, the screwing device assumes a 60 ° position. If you place the template 66 on a lower jaw and align the tip 75 so that it comes to rest between the two lower incisors, the screwing device is roughly in the position in which it is to be cast into the lower jaw plate.

FIG. 14 shows the template 66 in the same position as in FIG. 13, but equipped with a screw-web device according to FIG. 4. The pressure webs 22, 23 lie snugly on the webs 77, 78 , while the carrier 38 rests on the ridges 81, 82 . If the template 66 is held with its underside 86 against the upper jaw, with the tip 75 lying between the front incisors, the pressure webs 22, 23 assume a 60 ° position in which they are cast into the upper jaw plate.

The production of a double feed plate with the aid of the template 66 takes place in the following manner.

First, a plaster cast is made of the upper and lower jaw to be treated. In order to achieve a correct assignment of the lower and upper jaw plaster cast, the two impressions are fixed in a fixator or articulator and with a Wax construction bite spatially associated with each other. This wax construction bite is taken from the patient beforehand by placing the patient in the position provided by the practitioner bites into a thermoplastic wax and thus the therapeutically desired relation is fixed from the lower jaw to the upper jaw.

If the finished plaster casts are spatially fixed to one another in the fixator or articulator, the brackets 6 to 10 are bent and adapted to the teeth of the plaster cast in order to be able to hold the plates in the patient's mouth later.

Now the manufacture of the lower jaw plate 3 is started . For this purpose, the template 66 is placed with the upper jaw screwing device 35 to 37 with the pressure bars 22, 23 (cf. FIG. 14) between the upper jaw plaster cast 2 and the lower jaw plaster cast 4 in the fixator. With the aid of the adjusting wheel 74 , the needle tip is now brought between the two middle lower incisors of the lower jaw plaster cast 4 in order to align the template 66 lingually. Now a small marking line is drawn on the inside of the mandibular plaster cast 4 from the gap between the two mandibular incisors. This marking line serves as an orientation aid for the marking line 34 of the template 66 . After the template 66 is aligned with the lower jaw plaster cast 4 , the upper jaw plaster cast 2 is moved in the direction of the template 66 by means of the fixator. The template 66 is now aligned according to the raphe median line of the maxillary plaster cast 2 , in such a way that the screwing device 35 to 37 sits close and symmetrically on the palate. Now a pencil marking is also made on the palate of the upper jaw plaster model 2 , which indicates the center of the screw. A ruler is placed on this and the lower jaw line marking is aligned with the upper jaw line marking so that the lower jaw line marking is, as it were, projected onto the upper jaw line marking.

Now the upper jaw screwing device 35 to 37 with the pressure webs 22, 23 is removed from the template and the lower jaw screwing device 53 , 59, 60 is placed in its place in the template 66 ( FIG. 13). The template 66 prepared in this way is placed on the lower jaw plaster model 2 and aligned with the already existing marking center line. It is important in the implementation that the gypsum mucosal areas distal to the last mandibular molar tooth on the gypsum model are removed so that the template 66 according to the invention does not rest on the gypsum mucosa, but on the most distal molar teeth can.

The screw device 33, 53, 59, 60 together with the plastic holder 50, 51 is then waxed. Likewise, the clips 26 to 30 are waxed. Now all waxed elements are poured out with the material used, so that there is a lower jaw plate 3 , in which the clamps 26 to 30 and the screwing device 33, 53, 59, 60 are cast. This lower jaw plate 3 is then cured in a pressure pot if required, which is usually required for specific materials. The unnecessary portions (adapter) 50, 51 are then removed.

The further elaboration of the equipment takes place in the sense of the manufacturing process, such as these correspond to the materials or manufacturing processes that have been known for a long time are.

Upper and lower jaw plates are precisely matched to one another due to the use of the template 66 according to the invention. In particular, the 60 ° orientation is ensured because the tab 78 specifies this orientation.

The invention is of particular importance in the manufacture of the lower jaw feed plate. The upper jaw feed plate, however, can also be done using conventional techniques (see Weinreich, op. cit.).

The template 66 is shown in section in FIG. 15 and brought into relation to a tooth 88 . The openings 79, 88 can clearly be seen here.

FIG. 16 corresponds essentially to FIG. 13, but a relationship to the teeth of a jaw is also established. It can be seen here how the tip 75 of a pin engages in the gap between two teeth.

In FIG. 17, the template 66 is arranged between the upper and lower plaster casts, whereby it rests on the surfaces of the teeth of the lower plaster cast 200 . The template 66 is here with the metal parts 38; 22, 23 loaded, which are later incorporated into the feed plates.

Fig. 18 shows the template in a perspective representation, as it is placed on a lower jaw plaster cast. The engagement of the needle tip in a tooth gap can also be clearly seen here.

In Fig. 19 it is shown how the loaded plate is applied to an upper plaster cast. While the template according to FIG. 18 is constructed as shown in FIG. 13, the template according to FIG. 19 is constructed as shown in FIG. 14.

Claims (15)

1.Device for producing orthodontic feed plates, which are provided with adjusting devices for adjusting the width of the feed plates and with pressure elements in the upper jaw feed plate and with a pressure surface on the lower jaw feed plate, the pressure elements and the pressure surface having a predetermined angle to the occlusal plane and the pressure elements with the Adjusting device for adjusting the upper jaw feed plate form a structural unit with a template ( 66 ) having an opening ( 79; 80 ) for the introduction of support elements ( 50, 51; 39 ) of the adjusting devices ( 53, 59, 60; 35 to 37 ) of the device, characterized in that the template ( 66 ) is provided in the immediate vicinity of the opening ( 79 ) with a support surface ( 77, 78 ) which forms the predetermined angle to the template surface. 2. Device according to claim 1, characterized in that the predetermined angle Is 60 °. 3. Apparatus according to claim 1, characterized in that the bearing surface consists of two tongue-shaped webs ( 77 and 78 ). 4. The device according to claim 1, characterized in that the template ( 66 ) has the shape of a horseshoe, and that the opening ( 79 ) lies in the plane of symmetry of the two horseshoe parts. 5. The device according to claim 1, characterized in that an adjustable fixing needle ( 74, 76, 75 ) is provided on the template ( 66 ). 6. The device according to claim 5, characterized in that the fixing needle ( 74, 76, 75 ) is carried by a bolt ( 71 ) which is adjustably connected to the template ( 66 ). 7. The device according to claim 1, characterized in that on the support surface ( 78 ) opposite side of the template ( 66 ) elevations ( 81, 82 ) are provided. 8. The device according to claim 1, characterized in that the template ( 66 ) has a marking line ( 34 ) on its axis of symmetry. 9. The device according to claim 1, characterized in that the opening ( 79 ) extends perpendicular to the axis of symmetry of the template ( 66 ). 10. The device according to claim 7, characterized in that the elevations ( 81, 82 ) are separated from one another by a gap ( 80 ). 11. The device according to claim 1, characterized in that the opening ( 79, 80 ) is T-shaped, the horizontal part ( 79 ) adjacent to the foot of the support surface ( 77, 78 ) and the vertical part ( 80 ) in passes over the inner circumference ( 68 ) of the template ( 66 ). 12. The apparatus according to claim 6, characterized in that the bolt ( 71 ) perpendicular to its longitudinal axis has a screw thread into which the screw thread ( 73 ) of a part ( 74, 76 ) of the fixing needle ( 73 to 76 ) can be screwed. 13. The apparatus according to claim 6, characterized in that a part ( 75 ) of the fixing needle ( 73 to 76 ) with the bolt ( 71 ) is fixedly connected. 14. A method for producing a lower jaw feed plate using a device according to claim 1, comprising the following steps:

• a) the template ( 66 ) is provided with the upper jaw plate adjusting device ( 35 to 37 ) with the pressure bars ( 22, 23 );
• b) a fixing needle ( 74, 76, 75 ) of the template ( 66 ) is brought with its tip between the two central lower incisors of a mandibular plaster cast ( 4 );
• c) the template ( 66 ) is lingually aligned;
• d) on the inside of the mandibular plaster cast ( 4 ), a small marking line is drawn from the gap between the two mandibular incisors;
• e) the template ( 66 ) is aligned with a center marking line on the marking line of the mandibular plaster cast ( 4 );
• f) the upper jaw plaster cast ( 2 ) is moved in the direction of the template ( 66 );
• g) the template ( 66 ) is aligned according to the raphe median line of the maxillary plaster cast ( 2 ) in such a way that the upper jaw plate adjustment device ( 35 to 37 ) with the pressure bars ( 22, 23 ) sits close and symmetrically on the maxillary plaster cast ( 2 ) ;
• h) a mark is made on the palate of the upper jaw plaster model, which indicates the center of the upper jaw plate adjustment device ( 35 to 37 );
• i) the marking in the lower jaw plaster cast ( 4 ) is aligned with the marking of the upper jaw plaster cast ( 2 );
• j) the upper jaw plate adjusting device ( 35 to 37 ) with the pressure bars ( 22, 23 ) is removed from the template ( 66 );
• k) the lower jaw screwing device ( 53 to 60 ) is placed in the template ( 66 );
• l) the template ( 66 ) with the lower jaw screwing device ( 53 to 60 ) is placed on the lower jaw plaster model ( 2 ) and aligned with the existing marking center line;
• m) the lower jaw screwing device ( 53 to 60 ) is attached to the lower jaw plaster model ( 2 );
• n) the fixed lower jaw screwing device ( 53 to 60 ) is poured out with a liquid material, which then solidifies.

5. The method according to claim 14, characterized in that with the lower jaw screwing device ( 53 to 60 ) retaining wires ( 26 to 29 ) are partially poured out.