Method for manufacturing a dental substitute component, adapter, blank and kit comprising an adapter and a blank, kit comprising a plurality of adapters

Abstract

The invention relates to a method for producing a tooth substitute part (200) that can be connected to a tooth stump (110), in particular a stationary tooth substitute part (200), wherein an adapter (10) for a machine tool and a blank (50) for a tooth substitute part (200) are produced.

Description

[0001] describe

[0002] The invention relates to a method for producing a tooth replacement component that can be connected to a tooth stump, as well as an adapter for a machine tool, a blank for a tooth replacement component, a set consisting of an adapter and a blank, and a set consisting of a plurality of adapters.

[0003] Tooth replacement components are used on people to replace damaged or missing teeth or parts of teeth. Tooth replacement components can be divided into fixed tooth replacement components and removable tooth replacement components. Removable tooth replacement components include dentures. Fixed tooth replacement components include crowns, partial crowns, bridges and veneers.

[0004] In particular, crowns and bridges are connected to existing teeth in the mouth. To this end, the dentist grinds / mills a tooth stump from the existing tooth. The shape and size of the tooth stump vary from person to person due to the different shapes, sizes and inclinations of the teeth and the manual processing, i.e. each tooth stump is different. A conventional or digital impression is then made of the tooth stump. Based on the impression, a suitable tooth replacement component can be made, which can be placed on the tooth stump and fixed there. The tooth replacement component is manufactured in several work steps. First, the approximate shape of the tooth replacement component is milled, cast or laser sintered from a blank. The workpiece is then ground and polished. Finally, the tooth replacement component is coated.

[0005] Manually manufacturing tooth replacement parts is very tedious. However, automating the manufacturing process is challenging because each tooth replacement part must be custom-made.

[0006] In WO 98 / 03128 A1, US 7,077,391 B2, WO 2009 / 070470 A1 and WO 2008 / 131159 A1, known methods for manufacturing tooth replacement parts are described. None of these methods provide sufficient automation. In all cases, manual post-processing is required. DE 199 22 870 A1 discloses only a method for automatically tailoring the color, light transmittance, brightness and fluorescence of a dental restoration.

[0007] Further methods are known from DE 10 2010 037 160 A1, DE 10 2016 203 055 A1, EP 1 729 667 B1 and WO 2009 / 073498 A1.

[0008] It is therefore an object of the present invention to increase the degree of automation in a method for manufacturing a tooth replacement component.

[0009] This object is achieved by a method according to claim 1 .

[0010] A method for producing a tooth replacement component, in particular a fixed tooth replacement component, which can be connected to a tooth stump, comprises the following steps:

[0011] a) providing a stump data set having three-dimensional data on the shape and size of the tooth stump,

[0012] b) using the stump data set to produce an adapter for a machine tool, wherein the adapter in particular has a stump portion which corresponds in shape and size to the tooth stump and wherein the adapter has a coupling portion which can be coupled to a clamping device of the machine tool,

[0013] c) using the stump data set to produce a blank, wherein the blank has a recess which can at least partially accommodate the tooth stump,

[0014] d) connecting the blank to the adapter, wherein in particular the stub portion of the adapter is at least partially received by the recess of the blank,

[0015] e) Clamp the coupling part into the clamping device of the machine tool,

[0016] f) processing the blank into a tooth replacement component by means of a machine tool in an additive and / or subtractive manner,

[0017] g) Remove the tooth replacement component from the adapter.

[0018] The method provides the advantage that the blank can be clamped into the machine tool with the aid of an adapter, wherein the position and orientation of the blank in the machine tool are known because the blank is arranged on the adapter and the geometry of the adapter is known. In this way, the blank can be processed very accurately. Even when the adapter is loosened from the blank and clamped again, accurate processing is possible because the position and orientation of the blank in the machine tool are still predetermined by the geometry of the adapter and the known arrangement of the adapter in the machine tool. In addition, the blank can also be clamped into a plurality of different machine tools in sequence, wherein in each case the position and orientation of the blank are clearly known. In this way, the blank can be processed multiple times. As a result, manual post-processing of the milled blank is avoided or at least greatly reduced, which increases the degree of automation. Due to the temporary connection to the adapter, the tooth replacement component no longer requires or hardly requires post-processing after being removed from the adapter.

[0019] In the case of a dental bridge, the tooth replacement part is connected to a plurality of tooth stumps. In this case, the stump data set comprises three-dimensional data about the shape and size of all tooth stumps and their arrangement relative to each other. The adapter can then have a plurality of stump parts, or a plurality of adapters can be provided. The blank then has a plurality of recesses, which are adapted to the plurality of tooth stumps in terms of shape, size and relative arrangement.

[0020] The steps of the method can but do not necessarily have to be performed in a given order. In particular, step b) and step c) can be performed simultaneously or sequentially in any order. The order of step d) and step e) is also arbitrary. Preferably, step a) is performed before step b) and step c). It is also preferred that steps d) to g) are performed after step b) and step c). It is also preferred that step f) is performed after step d) and step e). It is also preferred that step g) is performed after step f). Instead of a clamping and subsequent reprocessing (step e) and step f), the coupling part can also be loosened and clamped multiple times (in the same or different machine tools), wherein each time in the clamped state, the coupling part is reprocessed in an additive and / or subtractive manner. This can be repeated as many times as required without affecting the accuracy of the reprocessing.

[0021] A tooth stump is understood to be a body made of a (human) tooth, in particular a truncated cone-shaped body, on and / or at which a tooth replacement component can be permanently arranged. In particular, the tooth stump is arranged in the oral cavity of a person to be treated.

[0022] A blank is understood to be a precursor of a tooth replacement component. The blank is therefore a semi-finished product. The blank may already have a shape which corresponds approximately to the tooth replacement component to be manufactured, but the blank may also be block-shaped, for example. In each case, the blank has a recess for a tooth stump or a stump part of an adapter. In particular, the blank does not have a coupling part for coupling the blank to a clamping device of a machine tool, since the blank is temporarily connected to the clamping device via the adapter.

[0023] Preferably, the recess is larger than the stump part so that, for example, an adhesive can be arranged between the components, which connects the components to each other. However, at the preparation boundary (i.e. at the transition between the stump part and the connecting part), the recess can be dimensioned so that the blank contacts the stump part. This ensures a clear positioning of the blank relative to the adapter. Even if a tooth replacement part is subsequently used, the tooth replacement part contacts the tooth stump at the preparation boundary. Alternatively, however, it is also possible that the shape of the stump part at the preparation boundary is different from the (actual) tooth stump and that the blank and the adapter do not contact there. This avoids damaging the blank at this location and facilitates machining of the blank around this location.

[0024] Within the scope of the method according to the invention, the blank can have two (or more) recesses and two (or more) different adapters can be provided, wherein the stump portion of the adapter and the recess of the blank are adapted to two (or more) different tooth stumps. In this way, for example, a large dental bridge can be manufactured which is to be mounted on two (or more) tooth stumps that are far apart.

[0025] The clamping device of the machine tool can also be called a collet. In particular, the clamping device is a zero-point clamping system. The zero-point clamping system enables the position and orientation of the blank to be determined particularly accurately, which has a positive effect on the further processing of the blank into a tooth replacement component.

[0026] In particular, the machine tool is a CNC machine tool, preferably a CNC machine tool for additive and / or subtractive machining of workpieces, such as a CNC milling machine.

[0027] In addition to the stump dataset, other datasets may also be used in the method, in particular tooth datasets, including three-dimensional data on the shape and size of tooth replacement components, in particular on the outer side surfaces of the tooth replacement components (in particular the occlusal surface of the tooth). Labial surface of the tooth Lingual surface of the tooth Occlusal surface of teeth Labial surface of the tooth Lingual surface of the tooth ). Advantageously, the dental data set is used for manufacturing the blank in step c) and / or for further processing the blank in step f). In step c), by combining the stump data set with the dental data set, a complete 3D model of the blank can be created and the blank can be manufactured on this basis. In step f), the block-shaped blank can be further processed into a tooth replacement component using the dental data set, for example.

[0028] Advantageously, the adapter in step b) and / or the blank in step c) are produced by casting and / or by a subtractive process (in particular milling, grinding and / or turning) and / or by an additive process (in particular laser sintering). The adapter and the blank itself are preferably integral. During the casting process, for example, the shape of the component to be produced can first be milled out of a wax block. This shape is then embedded, the wax is burned off, and the liquid metal is cast into the cavity.

[0029] Advantageously, the adapter and / or the blank comprises a ceramic, in particular zirconium dioxide and / or lithium disilicate, a metal and / or a metal alloy. If the adapter and / or the blank itself are made completely from a single material, they gain a particular stability. Zirconium dioxide is a particularly stable material and is particularly suitable for larger tooth replacement parts, such as bridges.

[0030] The materials used for the blank and the adapter are expensive. Therefore, in some embodiments, a multi-component adapter is produced in step b). Preferably, one part of the multi-component adapter has a stub part and another part of the multi-component adapter has a coupling part. These parts can be temporarily connected to each other, for example by means of an adhesive. In this way, the part with the coupling part can be used in turn for different adapters, thereby achieving cost savings. Therefore, step b) can also include the use of an already existing part with a coupling part, wherein in addition, the part with the stub part is produced and connected to another part to produce the adapter.

[0031] Step b) and step c) can each include sintering the adapter or the blank. In this case, the adapter or the blank is first produced, for example by casting and / or milling, and then sintered. The green body shrinks (becomes smaller) during the sintering process and is therefore initially produced with an oversize. After sintering, the adapter or the blank can be further processed, in particular in a subtractive and / or additive manner, to produce the desired final shape.

[0032] In an advantageous development, a stump data set is provided in step a) by detecting the shape and size of the tooth stump and preferably also the relative arrangement of a plurality of tooth stumps. Alternatively, an already existing stump data set may also be provided in step a). Preferably, the shape and size of the tooth stump and optionally the relative arrangement of a plurality of tooth stumps are detected directly in the oral cavity of the person to be treated (intraoral scanning) or by scanning a model (model scanning), in particular by scanning a plaster model. For this purpose, an intraoral scanner may be used.

[0033] For the further processing of the blank, it is advantageous if the blank and the adapter are firmly connected to one another. Otherwise, there is a risk that the blank will fall off the adapter or become damaged during processing. In an advantageous refinement, in step d), the blank is connected to the adapter in a removable, materially bonded manner, in particular by means of an adhesive and / or dental cement. The materially bonded connection ensures a firm connection. Due to the removable nature of the connection, the tooth replacement component and the adapter can be separated from one another essentially without damage after further processing. The separation can be achieved, for example, by melting the adhesive.

[0034] Preferably, in step c), the shape and size of the recess are designed such that during the connection in step d), an intermediate volume remains between the recess and the stump part, wherein the intermediate volume is filled with a connecting material, in particular an adhesive and / or a dental cement. By means of the intermediate volume, a defined space is formed in which the connecting material is arranged and the blank can be connected to the adapter. This achieves a reliable connection.

[0035] As already mentioned, the removal of the tooth replacement component from the adapter should be carried out as nondestructively as possible. Therefore, in an advantageous development, in step g), the tooth replacement component is removed from the adapter by melting the material-bonded connection, in particular in a furnace. Therefore, preferably, the adapter with the tooth replacement component fixed thereto is first removed from the machine, i.e. from the clamping device, and then the adapter and the tooth replacement component are separated from one another.

[0036] In an advantageous development, the additive post-processing in step f) comprises coating and / or the subtractive post-processing in step f) comprises milling, grinding and / or polishing. Coating (veneering) is preferably the last working step. For coating as well as for milling, grinding and polishing, it is very advantageous if the exact position and orientation of the blank in the machine tool is known, which is the case due to the adapter.

[0037] In an advantageous refinement, step b), step c) and step d) are combined with one another in one step. Here, the adapter and the blank are manufactured together as an adapter blank part, preferably by casting and / or by a subtractive process (particularly milling, grinding and / or turning) and / or by an additive process. The adapter then has no stump part. Here, a residual data set is used to manufacture the combined adapter blank part. The blank already has a groove that can at least partially accommodate the tooth stump. The adapter blank part has a coupling part that can be clamped into a clamping device of a machine tool in step e). The blank can then be reprocessed into a tooth replacement part. Preferably, the sintering treatment of the adapter blank part is carried out before or after reprocessing. In these refinements, the removal of the tooth replacement part from the adapter is achieved by cutting after the reprocessing is completed, and in particular is carried out in the same machine tool.

[0038] The object of the invention is also achieved by an adapter for a machine tool, in particular by an adapter manufactured according to step b) of the method described above, the adapter having a stump portion corresponding in shape and size to a tooth stump and a coupling portion that can be coupled to a clamping device of the machine tool. In particular, the stump portion corresponds in shape and size to a single tooth stump.

[0039] In particular, the coupling part of the adapter has a cylindrical shape with a circumferential groove, in particular with a hemispherical end. This shape is suitable for many clamping devices of machine tools, which allows the adapter to be used in many different machine tools. In general, however, the coupling part can have any shape and size that is suitable for the clamping device of a specific machine tool. The advantages according to the invention are particularly prominent when the adapter is used together with one or more adapted machine tools.

[0040] Preferably, the connecting part is designed to be curved, ie, in particular not straight, which simplifies subsequent processing including coating of the blank, since the individual tools of the machine tool can better access the relevant parts of the blank. However, a straight design of the connecting part may be sufficient, in particular in the case of a single crown, and the connecting part itself can be manufactured more easily.

[0041] The blank of the tooth replacement component can be temporarily and removably fastened at the stump part. As a result, the blank can be clamped in a machine tool, wherein the position and orientation of the blank in the machine tool are known due to the arrangement of the blank on the adapter and the known geometry of the adapter. In this way, the blank can be processed very accurately. Even when the adapter is released from the blank and clamped again, accurate processing is possible, since the position and orientation of the blank in the machine tool are still predetermined by the geometry of the adapter and the clear arrangement of the blank in the machine tool. In addition, the blank can also be clamped in turn into a plurality of different machine tools, wherein in each case the position and orientation of the blank are clearly known. Thus, it is possible to process the blank multiple times. This avoids or at least greatly reduces manual post-processing of the milled blank.

[0042] Preferably, the stub part and / or the coupling part constitute the ends of the adapter.If the adapter has only one stub part and one coupling part, the adapter is preferably elongated and has two ends.

[0043] The tooth replacement components also include a dental bridge. A dental bridge bridges a plurality of adjacent teeth. In this case, the dental bridge is fastened to a plurality of tooth stumps. In order to also be able to produce the dental bridge precisely, the adapter advantageously has a plurality of stump parts, wherein each stump part corresponds to a different tooth stump in shape and size. The blank of the dental bridge can then be arranged on the stump parts. The stump data set is used to determine the relative arrangement of the tooth stumps with respect to one another, in particular the shape and size of the individual tooth stumps.

[0044] The adapter is preferably in one piece. The adapter is thus very stable and holds the blank precisely in the predetermined position. This allows the blank to be processed precisely. Alternatively, the adapter can be multi-part. Preferably, one adapter part of the multi-part adapter has a stub part and another adapter part of the multi-part adapter has a coupling part. The adapter part with the coupling part can then be used together with a plurality of different adapter parts with stub parts, thereby achieving cost savings when manufacturing the adapter.

[0045] Advantageously, the adapter comprises a ceramic, in particular zirconium dioxide and / or lithium disilicate, a metal and / or a metal alloy. If the adapter is made completely from one material, it acquires a particular stability. Zirconium dioxide is a particularly stable material and is particularly suitable for larger tooth replacement parts, such as dental bridges.

[0046] The adapter can be further developed by means of the advantageous refinements described above.

[0047] The object of the invention is also achieved by a blank for a tooth replacement component, in particular a blank for a tooth replacement component produced by step c) of the above method, which blank has a recess which can at least partially accommodate a tooth stump. The recess allows the blank to be temporarily and detachably fastened to an adapter, in particular the above adapter, and subsequently to be precisely reprocessed in a machine tool into a tooth replacement component.

[0048] The blank can be further developed by the advantageous refinements described above.

[0049] The object of the present invention is also achieved by a kit consisting of at least one adapter as described above and at least one blank according to the above description, wherein the stump portion of at least one adapter and the groove of at least one blank are adapted to the same tooth stump. Thus, it is ensured that the blank can be temporarily and removably fastened at the stump portion. In this way, the blank can be clamped in a machine tool, wherein the position and orientation of the blank in the machine tool are known. In this way, the blank can be processed very accurately. In addition, the blank can also be clamped in a plurality of different machine tools in turn. Thus, it is possible to process the blank multiple times. Thus, manual post-processing of the milled blank is avoided.

[0050] Here, the blank can have two (or more) recesses and two (or more) different adapters can be provided, wherein the stump portion of the adapter and the recess of the blank are adapted to two (or more) different tooth stumps. In this way, for example, a large dental bridge can be manufactured, which is to be mounted on two (or more) tooth stumps that are far apart.

[0051] The object of the invention is also achieved by a kit consisting of a plurality of adapters according to the above description, wherein the coupling part of each adapter is identical, while the stump part of the adapter is different, in particular adapted to different tooth stumps. Due to their identical coupling parts, the adapters can all be used with the same clamping device of a machine tool. At the same time, the adapters are customized and adapted to a predetermined tooth stump. In this way, tooth replacement components for different tooth stumps can be manufactured in the same machine tool.

[0052] The object of the present invention is also achieved by a method for producing a tooth replacement component, in particular a fixed tooth replacement component, which can be connected to a tooth stump, comprising the following steps:

[0053] aa) providing a stump data set having three-dimensional data on the shape and size of the tooth stump,

[0054] bb) producing an adapter blank component having a blank and an adapter connected integrally to the blank, wherein the blank has a recess which can at least partially accommodate the tooth stump, and wherein the adapter has a coupling part which can be coupled to a clamping device of a machine tool,

[0055] cc) Clamp the coupling part into the clamping device of the machine tool,

[0056] dd) processing the blank into a tooth replacement component by means of a machine tool in an additive and / or subtractive manner,

[0057] ee) Remove the tooth replacement component from the adapter.

[0058] This method also offers the advantages mentioned above, in particular the possibility of precise machining of the blank and the possibility of machining the blank in one or more machine tools or even machining the blank multiple times. The method can also be further developed by the advantageous refinements mentioned above.

[0059] The object of the invention is also achieved by the adapter blank component produced in step bb).

[0060] Preferably, the adapter blank part is sintered, in particular after step bb) and / or before step cc). As a result, the adapter blank part shrinks, which is already taken into account during production in step bb).

[0061] The present invention is described and explained below by way of example based on the accompanying drawings. In the accompanying drawings:

[0062] Figure 1 A schematic diagram shows a tooth stump in the oral cavity of a person to be treated,

[0063] Figure 2 A schematic diagram shows a partial cross section of a kit consisting of an adapter and a blank,

[0064] Figure 3 The schematic diagram shows the connected Figure 2 Partial cross-section of the adapter and blank,

[0065] Figure 4 A schematic diagram showing a tooth replacement device with components Figure 1 Partial section of the tooth stump,

[0066] Figure 5 A further embodiment of a kit consisting of an adapter and a tooth replacement component is shown schematically,

[0067] Figure 6 A further embodiment of a kit consisting of an adapter and a tooth replacement component is shown schematically,

[0068] Figure 7 The method flow of an embodiment of the method according to the present invention is schematically shown.

[0069] Figure 8 An embodiment of an adapter blank component is shown schematically,

[0070] Fig. 9 A schematic diagram shows a partial cross section of a kit consisting of an adapter and a blank.

[0071] Figure 1 A portion of the mandible 100 of a person to be treated is schematically shown. A tooth stump 110, which is ground from an existing tooth by a dentist, is located in the mandible 100. The tooth stump 110 has a substantially truncated cone shape. In a lower region 112, the tooth stump 110 is surrounded by gums 116. An upper region 114 of the tooth stump 110 will be fitted with a crown (not shown here).

[0072] The shape and size of the tooth stump 110 can be measured, for example, by means of an intraoral 3D scan. By means of the scan, a stump dataset with three-dimensional data is provided, which gives information about the shape and size of the tooth stump 110.

[0073] Then, based on this data, one can make Figure 2 The adapter 10 shown. The adapter 10 includes a Figure 1 The adapter 10 further comprises a coupling portion 30, which is designed to be coupled to a clamping device (not shown) of a machine tool, in particular a quick clamping system. In the embodiment shown, the coupling portion 30 is designed to be coupled to a zero-point clamping system.

[0074] The stub portion 20 and the coupling portion 30 are disposed at opposite ends of the adapter 10 and are connected to each other through a connecting portion 40 .

[0075] The coupling part 30 and the connecting part 40 are also milled based on the three-dimensional data. Here, the coupling parts 30 of different adapters 10 are identical. Then, the adapters 10 differ in their stump parts 20 and optionally also in their connecting parts 40.

[0076] The adapter 10 is made by milling a whole piece of material. To this end, the three-dimensional data of the stump data set is combined with the three-dimensional data of the coupling part 30 and the connecting part 40 into a 3D model. Then, the 3D model is the basis for manufacturing the adapter 10.

[0077] Figure 2 Also shown is a blank 50. The blank 50 is also manufactured using the stump dataset and has a recess 52 and an outer side 54. The recess 52 is designed in size and shape based on the stump dataset so that the recess can accommodate the stump portion 20 or the tooth stump 110, wherein the recess 52 is larger than the stump portion 20, thereby leaving an intermediate volume.

[0078] In the illustrated embodiment, the shape of the outer side 54 is manufactured using a dental data set. The dental data set includes three-dimensional data of the desired shape and size of a tooth replacement component (not shown here). In other embodiments, the outer side 54 of the blank 50 can also be block-shaped.

[0079] The adapter 10 and the blank 50 are then connected to each other ( Figure 3 ). For this purpose, the stump part 20 is arranged in the recess 52. The intermediate volume is filled with a dissolvable adhesive 60. The adapter 10 and the blank 50 are connected to each other in a removable and materially bonded manner by means of the adhesive 60. In this state, the composite structure consisting of the adapter 10 and the blank 50 can be arranged in one machine tool or in a plurality of machines in succession. There, the blank 50 is processed in an additive and / or subtractive manner to form the tooth replacement component 200 (see Figure 4 ), here a crown. Due to the known shapes and dimensions of the adapter 10 and the blank 50 and the precise arrangement of the adapter 10 in the zero-point clamping system of the machine tool, the blank 50 can be machined very accurately.

[0080] When the blank 50 is reprocessed to form the tooth replacement component 200, the tooth replacement component 200 is removed from the adapter 10. In the case of a fusible adhesive 60, the composite structure consisting of the adapter 10 and the tooth replacement component 200 can be heated in a furnace. After heating, the tooth replacement component 200 can be separated from the adapter 10. Subsequently, the tooth replacement component 200 can be arranged directly on the tooth stump 110 and connected thereto, for example by means of a dental cement 210 ( Figure 4 ).

[0081] Figure 5A further embodiment of a kit consisting of an adapter 10 and a blank 50 is shown. In this embodiment, the blank 50 is provided for producing a dental bridge as a tooth replacement component 200. The adapter 10 comprises a coupling portion 30, by means of which the adapter 10 can be clamped into a clamping device of a machine tool.

[0082] The adapter 10 further comprises a Y-shaped (i.e. forked) connecting part 40. At a single end, the connecting part 40 is connected to the coupling part 30. At the other two ends, a stump part 20 is provided respectively. The stump parts 20 are adapted to the two tooth stumps (not shown here) in terms of shape and size as well as their relative arrangement. The blank 50 has two grooves 52 and is connected to the two stump parts 20. Subsequently, the coupling part 30 can be clamped in a clamping device and the blank 50 can be reprocessed into a dental bridge in an additive and / or subtractive manner.

[0083] Subsequently, the dental bridge is separated from the adapter 10 and can be installed in the oral cavity of the person to be treated.

[0084] Figure 6 Another embodiment of the kit is shown. The kit is used to manufacture a large dental bridge, which, when used conventionally, is placed on two tooth stumps (not shown here) with two other vacant tooth positions between the two tooth stumps. In this embodiment, the kit includes two adapters 10 and a blank 50. Each adapter 10 has a stump portion 20, which corresponds in shape and size to one of the two tooth stumps. The two adapters 10 respectively include a coupling portion 30, which is designed to be coupled to a clamping device (not shown) of a machine tool and to position and orient the two stump portions 20 in a manner that conforms to the conditions in the patient's mouth.

[0085] In this embodiment, the blank 50 comprises two grooves 52, one for each of the two stump parts 20. The grooves 52 are positioned so that they can accommodate one of the two stump parts at the same time. In this way, the blank 50 can be connected to two adapters 10 at the same time. Then, the position and orientation of the blank 50 are known in the machine tool, and the blank can be processed very accurately.

[0086] Figure 7 The method flow of a method for manufacturing a tooth replacement component connectable to a tooth stump is schematically shown. In step 1010, the shape and size of the tooth stump are first detected, and a stump data set is provided thereby. Subsequently, in step 1020, an adapter for a machine tool is manufactured using the stump data set, wherein the adapter has a stump portion corresponding to the tooth stump in shape and size, and wherein the adapter has a coupling portion that can be coupled to a clamping device of the machine tool.

[0087] In parallel thereto, in step 1030 a blank for a tooth replacement component is also produced using the stump data set, wherein the blank has a recess which can at least partially accommodate the tooth stump.

[0088] In step 1040, the adapter is connected to the blank, wherein the stub portion of the adapter is at least partially received by the recess of the blank. Subsequently, in step 1050, the coupling portion of the adapter is clamped into a clamping device of the machine tool.

[0089] Then, in step 1060, the blank is further processed into a tooth replacement component by means of a machine tool in an additive and / or subtractive manner. In addition, the blank is also coated.

[0090] The completed tooth replacement component is removed from the adapter in step 1070. The tooth replacement component is then ready for use, i.e., can be placed in the oral cavity of a subject to be treated.

[0091] Figure 8 An adapter blank component 80 having an adapter 10 and a blank 50 is shown. The adapter 10 and the blank 50 are connected to each other in one piece. In this embodiment, the adapter 10 has no stub portion. Instead, the adapter 10 is connected to the blank 50 at one end, and the adapter 10 has a coupling portion 30 at the other end, which is designed to be coupled to a clamping device (not shown) of a machine tool. The connecting portion 40 connects the two ends of the adapter 10.

[0092] Since the shape and size of the adapter blank part 80 and the precise arrangement of the adapter blank part 80 in the machine tool are known, the blank 50 can be processed very accurately. In addition, the adapter blank part 80 can be unclamped and re-clamped as many times as desired without affecting the processing accuracy.

[0093] Fig. 9 The kit shown in FIG. 1 comprises an adapter 10 and a blank 50. The blank 50 comprises a recess 52 for a tooth stump (not shown here) and an outer side 54 which is still to be subsequently machined.

[0094] In this embodiment, the adapter 10 is multi-component. The first adapter part 12 includes a coupling part 30 and a first connecting part 42. The second adapter part 14 includes a stump part 20 and a second connecting part 44. The connecting parts 42, 44 are configured to be complementary to each other and can be temporarily connected to each other, for example, by means of an adhesive. Together, they form the connecting part 40 of the adapter 10. Due to the multi-component nature, the first adapter part 12 can also be connected to other second adapter parts 14 adapted to other tooth stumps, so that it can be reused.

[0095] Reference Mark List

[0096] 10 Adapter

[0097] 12 First adapter part

[0098] 14 Second adapter part

[0099] 20 Stump

[0100] 30 Coupling section

[0101] 40 Connection part

[0102] 42 first connecting member

[0103] 44 second connecting member

[0104] 50 blanks

[0105] 52 grooves

[0106] 54 Outer side

[0107] 60 Adhesive

[0108] 80 Adapter Blank Parts

[0109] 100 Mandible

[0110] 110 Tooth stump

[0111] 112 Lower Area

[0112] 114 Upper Area

[0113] 116 Gums

[0114] 200 Tooth replacement parts

[0115] 210Dental cement.

Claims

1. A method for manufacturing a tooth replacement component (200) that can be connected to a tooth stump (110), the tooth replacement component being in particular a fixed tooth replacement component (200), the method comprising the following steps: a) providing a stump dataset having three-dimensional data on the shape and size of the tooth stump (110); b) using the stump data set to produce an adapter (10) for a machine tool, wherein the adapter (10) in particular has a stump portion (20) corresponding in shape and size to the tooth stump (110), and wherein the adapter (10) has a coupling portion (30) which can be coupled to a clamping device of the machine tool; c) using the stump data set to manufacture a blank (50), wherein the blank (50) has a recess (52) capable of at least partially accommodating the tooth stump (110); d) connecting the blank (50) to the adapter (10), wherein in particular the stump portion (20) of the adapter (10) is at least partially received by the recess (52) of the blank (50); e) clamping the coupling part (30) into the clamping device of the machine tool; f) further processing the blank (50) into the tooth replacement component (200) by means of the machine tool in an additive and / or subtractive manner; g) Removing the tooth replacement component (200) from the adapter (10).

2. The method according to claim 1, characterized in that The adapter (10) is produced in step b) and / or the blank (50) is produced in step c) by casting, cutting, in particular milling, grinding and / or turning, and / or by an additive process.

3. The method according to any one of the preceding claims, characterized in that The stump dataset is provided in step a) by detecting the shape and size of the tooth stump (110).

4. The method according to claim 3, characterized in that The detection of the shape and size of the tooth stump (110) is performed directly in the oral cavity of the patient to be treated, or the detection of the shape and size of the tooth stump (110) is performed by scanning a model.

5. The method according to any one of the preceding claims, characterized in that In step d), the blank (50) is connected to the adapter (10) in a detachable, materially bonded manner, in particular adhesively bonded.

6. The method according to any one of the preceding claims, characterized in that In step c), the recess (52) is designed in shape and size such that during the connection process in step d), an intermediate volume remains between the recess (52) and the stump part (20), wherein the intermediate volume is filled with the connection material.

7. The method according to any one of the preceding claims, characterized in that The tooth replacement component (200) is removed from the adapter (10) in step g) by melting the material-bonding connection, in particular by melting in a furnace.

8. The method according to any one of the preceding claims, characterized in that In step f) the additive post-processing comprises coating and / or in step f) the subtractive post-processing comprises milling, grinding and / or polishing.

9. The method according to any one of the preceding claims, characterized in that Step b), step c) and step d) are combined with each other, and the adapter (10) and the blank (50) are manufactured in one piece.

10. An adapter (10) for a machine tool, in particular an adapter manufactured by step b) of the method according to any one of claims 1 to 8, the adapter (10) having: a stump part (20) corresponding in shape and size to a tooth stump (110); and a coupling part (30) capable of being coupled to a clamping device of the machine tool.

11. The adapter (10) according to claim 10, characterized in that The adapter (10) has a plurality of stump parts (20), wherein each stump part (20) corresponds to a different tooth stump (110) in shape and size, and / or the adapter (10) is multi-component, wherein one adapter part (14) of the multi-component adapter (10) has the stump part (20) and another adapter part (12) of the multi-component adapter (10) has a coupling part (40).

12. A blank (50) for a tooth substitute component (200), produced by step c) of the method according to any one of claims 1 to 8, the blank having a recess (52) capable of at least partially accommodating a tooth stump (110).

13. A kit, comprising at least one adapter (10) according to claim 10 or 11 and at least one blank (50) according to claim 12, wherein the stump portion (20) of at least one adapter (10) and the groove (52) of at least one blank (50) are adapted to the same tooth stump (110).

14. A kit consisting of a plurality of adapters (10) according to claim 10 or 11, wherein: The coupling portion (30) of each adapter (10) is identical, while the stump portion (20) of the adapters (10) are different.

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