Method for processing restoration by using zirconium oxide porcelain block

Abstract

The invention relates to a false tooth manufacturing technology, in particular to a method for processing a prosthesis by using a porcelain block without a supporting rod, which comprises the following steps of: according to a split mode of the prosthesis, compiling and generating a specific processing strategy and program, and cutting an integral type into a split type; the split processing can be independent of single bodies or batches, and comprises roughing, fine cutting and specific processing; the cutting end, the occlusal surface or the axial surface of the prosthesis is set as a front part body, and the rest part is in a whole-section or multi-section form; the intervention treatment is introduced, a separation bonding material is applied to the junction of the two parts between the front part and the remaining part or multiple sections of remaining parts, and subsequent cutting is supported by previous bonding and curing; each body processing strategy is imported into numerical control equipment for processing; and after integral forming, stripping the fixedly connected material to obtain a complete prosthesis. According to the method, the current situation that cutting depends on a supporting rod is changed, the problem that part of shapes cannot be processed is solved, the number of false teeth of porcelain blocks is multiplied, the processing cost, time and dust pollution are remarkably reduced, and unmanned automatic manufacturing of the prosthesis can be implemented.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of denture manufacturing, in particular to a method for processing a prosthetic body from a zirconia porcelain block. BACKGROUND

[0002] The prior art requires a support rod for each prosthetic body when producing a denture from a porcelain block, and the support rod provides necessary connection and fixation for the cut prosthetic body during processing. After the prosthetic body is formed and processed, the support rod is cut by manual tools and the support rod stub remaining on the prosthetic body is ground off and smoothed by manual processing. Figure 7 In addition, the prior art adopts an overall cutting method for each prosthetic body when processing a denture, that is, after the overall roughing and fine cutting of one prosthetic body are completed, another prosthetic body is cut. The prior art for processing a denture has the characteristics and features that the support rod of the prosthetic body requires a large unobstructed processing space for the cut prosthetic body; the cutting of each prosthetic body adopts a single overall processing strategy from roughing to fine cutting, and the processing of the denture is completed one overall body at a time; after the processing of the required denture is completed on the porcelain block, the support rod of each cut prosthetic body is cut by hand, the prosthetic body is removed, the remaining support rod stub is manually ground off, and the axial surface or shape of the prosthetic body is manually ground and polished; for some prosthetic shapes, it is difficult or impossible to use a support rod to complete the cutting and forming processing.

[0003] The disadvantages and drawbacks of the prior art for processing a denture are that some prosthetic bodies are difficult or impossible to cut with a support rod; for the prosthetic bodies that can be cut, the support rod is required to maintain the necessary connection and fixation during cutting, and a large unobstructed cutting space is required to maintain the support rod; the large unobstructed cutting space requires a large amount of roughing processing, which will unnecessarily consume a large amount of porcelain block material and a large amount of roughing processing time; at the same time, a large amount of dust will be generated by such roughing, which will seriously pollute the environment, and the ultra-fine particles of the dust will seriously harm human health; for the prosthetic bodies processed in the porcelain block, manual removal is required; during the removal of the denture, the operator uses electric tools and cutting tools to sequentially cut the several support rods around each prosthetic body to separate the denture from the porcelain block; after cutting, the support rod stub on the outer wall of the removed prosthetic body is ground off and the axial surface is polished; manual tooth removal cannot meet the shape accuracy requirements of the prosthetic body, is prone to damage to the prosthetic body, consumes a large amount of labor, lengthens the processing cycle, further generates a large amount of dust to pollute the environment and affect human health; it is a labor-intensive processing method, has low production efficiency and high production cost. SUMMARY

[0004] To solve the difficult problem that the existing technology processing restoration body needs to rely on support rod, and to realize that the restoration body is cut and formed without needing to be taken out of the porcelain block and the complete restoration body by manual cutting and grinding, and to get rid of the restriction of the whole type cutting restoration body, the application provides a solution for processing the zirconia porcelain block restoration body without support rod.

[0005] The application method can also improve the material utilization rate of the porcelain block processing restoration body, reduce resource waste, improve the production efficiency of the restoration body processing and shorten the production cycle, reduce production costs, reduce the harm of dust to the human body and pollution to the environment, reduce production energy consumption, and improve the shape accuracy and yield of the denture.

[0006] The application provides a method for processing a zirconia porcelain block restoration body, which adopts the following technical scheme: A method for processing a zirconia porcelain block restoration body, comprising the following steps: setting the processing mode and strategy, formulating the specific processing mode and processing strategy of the cutting restoration body according to the designed restoration body; setting the split mode, changing the whole processing of the restoration body to the split processing of multiple split bodies, or changing the rough cutting and fine cutting processing of the whole type to the corresponding processing of the split type or batch type, and realizing the whole processing through the combined processing of the split bodies; split selection, in the split selection structure, the cutting end, occlusal surface or axial surface of the restoration body is set as the front split body; remaining body selection, the remaining split body in the remaining area is set as a whole split body or a multi-segment split body; split processing, according to the split or batch selection part and the processing mode, an independent processing strategy corresponding to the split processing is formulated; intervention processing, the intervention processing is introduced between the split processing, the adhesive material is applied at the interface of the two bodies during the processing of the front split body and the remaining split body in the first sequence processing, and the adhesive material is applied at the interface of the two bodies during the processing of the remaining split body in the second sequence processing; restoration body falling, the cutting of the subsequent processing body is supported by the adhesion and solidification of the previous sequence processing body, the generated processing strategy of each split body is sequentially introduced into the numerical control equipment to complete the split processing, and after the restoration body is processed and formed, the stripping processing of the restoration body is performed on the adhesive material, so that the restoration body falls off.

[0007] By adopting the technical scheme, according to the set front region, the front region is firstly machined by the machining center, after the machining of the front region is completed, the fixing material is applied at the position of the front region, after the fixing material is solidified, the remaining region is machined by the machining center, after the machining of the remaining region is completed, the fixing material is melted or dissolved, so that the restoration body is detached. By adopting the technical scheme, the problem that the restoration shape of some indications cannot be machined by using the support rod can be solved, the roughing space can be greatly saved, the restoration bodies can be fully and compactly arranged on the porcelain block, the consumption of the material is greatly reduced, the roughing for reserving the action space in the later period is not needed, so that the consumption of the material is reduced, the support rod does not need to be machined, and the machining precision and the intact rate of the restoration body caused by artificial cutting and grinding in the post-processing are avoided.

[0008] Optionally, each of the split or batch machining forming is independently complete, and includes respective roughing cutting and finishing cutting of the split or batch.

[0009] By adopting the technical scheme, the machining precision can be guaranteed, the machining efficiency can be ensured, and the number of the restoration bodies that can be cut on each porcelain block is significantly increased.

[0010] Optionally, the application of the fixing material can be in a single-layer and multi-layer mode; when the multi-layer mode is adopted, the fixing material can include a detachment fixing material which is in contact with the restoration body and has a melting or dissolving property; the fixing material and the detachment fixing material play a role of bearing the machining load after being solidified; the fixing material can have the melting or dissolving property or a softening property.

[0011] By adopting the technical scheme, whether the fixing material is layered is selected according to different states and conditions, when the multi-layer mode is adopted, the fixing material not only has the role of bearing the machining load, but also has the melting or dissolving property or the softening property, so that the detachment of the restoration body is facilitated without affecting the machining, thereby realizing the automatic tooth extraction function.

[0012] Preferably, when the split strategy is set as the combination of the front region and the remaining whole segment, the front split and the remaining split generate, respectively, independent split complete machining strategies of each other by using the computer-aided manufacturing software, and each strategy includes the space path and the feeding strategy of the roughing cutting, the finishing cutting and the specific cutting of the corresponding split.

[0013] Optionally, when the split strategy involves the segmentation of the remaining region, for any two combinations of the remaining segments, the front split and the rear split of the remaining region generate, respectively, independent split complete machining strategies of each other by using the computer-aided manufacturing software, and each strategy includes the space path and the feeding strategy of the roughing cutting, the finishing cutting and the specific cutting of the corresponding split.

[0014] Preferably, the front region and the remaining region not only cover a single restoration and its processing neighborhood, but also all restorations in the current processing batch and their processing regions on a porcelain block.

[0015] Optionally, when the split mode is combined with multiple split groups, a batch processing strategy is adopted, and a computer-aided manufacturing software is used to generate independent split batch complete processing strategies for each batch. Each strategy includes spatial paths and feeding strategies for rough cutting, fine cutting, and specific cutting.

[0016] Preferably, for each split, the fine cutting strategy can adopt a layered processing mode. According to the shape and wall thickness of the walls of the set coverage region of the restoration, the required number of layers is set, the layer thickness of the last process is determined, the fine processing surface is divided into several layer sub-surfaces, and fine processing is performed layer by layer or sub-surface by sub-surface.

[0017] By adopting the above technical solutions, the produced restorations have high precision, and the processing of thin veneers and other special shape difficult-to-process restorations, especially those that are difficult or impossible to process with support rods, is guaranteed.

[0018] Preferably, for each split, the fine cutting processing can adopt a vertical strategy. According to the shape and wall thickness of the walls of the set coverage region of the restoration, the vertical strategy is divided into partitions, and the rough cutting, fine cutting, and specific cutting strategies are implemented on each partition for layered vertical cutting processing from the surface inward.

[0019] By adopting the above technical solutions, with the aid of the auxiliary support of the lateral thick body, the bending resistance of the thin body is enhanced, the thin body and weak parts are less likely to break during cutting, thereby improving the processing load-bearing capacity of each part of the processed restoration, further guaranteeing the shape integrity rate of the restoration processing, increasing the yield rate and stability; at the same time, the fine precision of special parts of the restoration can be improved.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. The existing processing technology can be revolutionized. When processing restorations with porcelain blocks, there is no need to set and cut support rods to connect and fix the restorations to the porcelain blocks, changing and abandoning the traditional mode of relying on support rods to process restorations in the existing technology.

[0021] 2. The problem of relying on support rods that cannot be processed is solved, so that restorations with shapes that cannot be cut with support rods can also be processed completely, and the shape requirements are met.

[0022] 3. The existing processing technology can be revolutionized. When processing restorations with porcelain blocks, there is no need for preliminary rough cutting to leave unobstructed working space for subsequent processing, changing and abandoning the current situation of unnecessary consumption of porcelain block materials in the existing technology, saving resources and reducing dust pollution.

[0023] 4. Change the existing processing technology, increase the arrangement space of the prosthesis by removing the support rod, and closely arrange the processing objects through special cutting strategies and tooling strategies to maximize the utilization of porcelain block materials, thereby doubling the number of prosthesis that can be processed from the porcelain block, improving processing efficiency and reducing processing costs.

[0024] 5. Change the existing processing technology, without manually cutting and grinding the support rod from the porcelain block to remove the prosthesis and post-processing the prosthesis, the prosthesis is made by non-manual pouring and bonding of the fixing material, realizing the automation of prosthesis manufacturing from cutting the prosthesis to removing the prosthesis, and getting rid of the backward state of prosthesis forming processing relying on manual labor.

[0025] 6. A large amount of porcelain block material can be saved, the amount of cutting tools and processing tools can be greatly reduced, the service life of the equipment can be significantly prolonged, manual polishing tools and consumables can be eliminated, and production costs can be further greatly reduced.

[0026] 7. The precision and quality of the prosthesis are improved, the damage rate and unqualified rate are reduced, which is beneficial to the implementation of clinical chair-side repair. The prosthesis damage phenomenon caused by the support rod can be avoided, and the situation that some indications cannot be processed due to the addition of the support rod can be avoided. Dust pollution can be greatly reduced, and the health hazards of dust to the human body can be reduced.

[0027] 8. The porcelain block material can be fully utilized to process dentures, the number of prosthesis processed from each porcelain block can be increased, and the prosthesis can be automatically processed and taken out after processing, the quality of the denture is improved, the production efficiency is improved, the production cost is reduced, the production energy consumption is reduced, and the upgrading of the denture manufacturing technology is beneficial. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a flowchart of the method of processing the prosthesis of the zirconia porcelain block in the application.

[0029] Figure 2 is a schematic diagram of the cutting front area of the prosthesis in the embodiment of the application.

[0030] Figure 3 is a schematic diagram of the structure with a fixed adhesive after intervention treatment in the embodiment of the application.

[0031] Figure 4 is a schematic diagram of the structure of the remaining area of the prosthesis.

[0032] Figure 5 is a schematic diagram of the structure of the prosthesis before being separated.

[0033] Figure 6 is a schematic diagram of the structure of the prosthesis after the fixed adhesive is dissolved / melted.

[0034] Figure 7 is a layout diagram of a prosthesis on a block in the prior art.

[0035] Figure 8 is a schematic diagram of the batch mode and effect of the method of the application compared with the traditional method. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the application will be further described below with reference to the drawings.The embodiments described are only possible technical implementations of the application, but the application is not limited to this. Those skilled in the art can obtain other embodiments without creative effort, which are also within the protection scope of the application. The application mainly adopts a new processing strategy and non-artificial tooth extraction, which overcomes the drawbacks of traditional denture processing, improves efficiency and reduces cost, and significantly improves the processing integrity and shape accuracy of the denture, facilitating fully automated processing of the denture. The application will be described in further detail below. Figures 1-8 Further detailed description of the application.

[0037] The embodiments of the application disclose a method for processing a prosthesis from a zirconia block.

[0038] The technical solutions in the embodiments of the application will be further described below with reference to the drawings. The embodiments described are only possible technical implementations of the application, but the application is not limited to this. Those skilled in the art can obtain other embodiments without creative effort, which are also within the protection scope of the application. The application mainly adopts a new processing strategy and non-artificial tooth extraction, which overcomes the drawbacks of traditional denture processing, improves efficiency and reduces cost, and significantly improves the processing integrity and shape accuracy of the denture, facilitating fully automated processing of the denture. The application will be described in further detail below. Embodiment 1 According to the method for processing a prosthesis from a zirconia block provided by the embodiments of the application, the processing mode and strategy are set, the front region is set, the remaining region is set, the split mode and strategy and the remaining mode and processing are generated, and intervention processing is performed, until the prosthesis is separated from the block, etc. Through the cooperation of these steps, the drawbacks of relying on support rods and artificial tooth extraction in traditional denture processing can be avoided, the efficiency and quality of denture processing are improved, the cost is reduced, and the clinical application requirements for the integrity and shape accuracy of the prosthesis are met. Figure 1 Specifically, the step of setting the processing strategy is to compile the processing mode and strategy according to the designed prosthesis, and to implement it by generating a computer-aided processing program strategy.

[0039] According to the method for processing a prosthesis from a zirconia block provided by the embodiments of the application, the processing mode and strategy are set, the front region is set, the remaining region is set, the split mode and strategy and the remaining mode and processing are generated, and intervention processing is performed, until the prosthesis is separated from the block, etc. Through the cooperation of these steps, the drawbacks of relying on support rods and artificial tooth extraction in traditional denture processing can be avoided, the efficiency and quality of denture processing are improved, the cost is reduced, and the clinical application requirements for the integrity and shape accuracy of the prosthesis are met.

[0040] Figures 2-6 According to the method for processing a prosthesis from a zirconia block provided by the embodiments of the application, the processing mode and strategy are set, the front region is set, the remaining region is set, the split mode and strategy and the remaining mode and processing are generated, and intervention processing is performed, until the prosthesis is separated from the block, etc. Through the cooperation of these steps, the drawbacks of relying on support rods and artificial tooth extraction in traditional denture processing can be avoided, the efficiency and quality of denture processing are improved, the cost is reduced, and the clinical application requirements for the integrity and shape accuracy of the prosthesis are met.

[0041] The setting step of the front region is to determine the machined front region according to the restoration, which can be the incisal edge or the occlusal surface of the restoration, or an axial surface of the restoration. Selecting a suitable front region is very important for subsequent machining. If the incisal edge of the restoration is selected as the front region, the incisal edge can be finely machined first during machining to ensure the accuracy and quality of the incisal edge. Different selection of the front region will affect the subsequent machining sequence of the split body and the generation of the computer-aided machining strategy.

[0042] For the remaining region setting, the remaining region can be a whole segment of the split body or several segments of the split body. In a simple case, the remaining region can be set as a whole segment of the split body, and the program strategy for machining the whole segment of the split body is generated by the computer-aided machining software; in a complex case, the remaining region can be divided into several segments of the split body, and the program strategy for machining each segment of the split body is generated by the computer-aided machining software. In this way, the processing capability and machinability for complex shapes can be improved.

[0043] The intervening processing step is performed between the first sequence of split body machining of the front region and the remaining region, or between the segmented second sequence of split body machining. The intervening processing mode can be determined according to the split body mode and its machining, and the process step flow is used between the two front and rear sequences of split body machining, and the material that can be adhesively fixed is applied between the two sequences. After the adhesive fixing material is applied, the material is allowed to solidify, so that the split body is connected and fixed to the porcelain block. The selection and application mode of the adhesive fixing material is very critical. The material with good adhesive properties and suitable mechanical properties can be selected. The application mode can adopt a layered mode, and each layer of material and properties can be different. The material of the liner layer in contact with the restoration has a dissolvable or dissolving property, or a softening property. When not layered, the applied material has both adhesive fixing and dissolvable or dissolving properties, which facilitates the subsequent detachment of the restoration from the porcelain block.

[0044] The step of detaching the restoration from the porcelain block is to put the porcelain block or the split batch of restorations into a special device to melt, dissolve or soften the adhesive fixing material, or to use a special tool to locally process the restoration to melt, dissolve or soften the adhesive fixing material, so that the restoration falls off. The special device or special tool can be designed according to the properties of the adhesive fixing material. If the adhesive fixing material is meltable, the special device or special tool can be a heating device to melt the material by heating; if it is soluble, the special device or special tool can be a solvent container or a local dissolving processor to dissolve the material.

[0045] In order to obtain and improve the stability and yield of the finished product of the restoration, including veneer and ultra-thin veneer, the roughing is completed without support rod veneer. For veneer, according to the cutting loadable veneer thickness, more machining allowance is left. The finishing is processed by segmented and layered processing method, including vertical method, the finished surface is divided into several segments or several sub-surfaces, each segment or each sub-surface is layered and finished, for example, the forming finishing of the segment or the sub-surface can be completed by multiple path feeding. The finishing is performed segment by segment or sub-surface by sub-surface until the completion of the overall curved surface processing in one direction or surface. When the veneer is processed by vertical strategy, the bending resistance of the thin surface is enhanced due to the auxiliary support of the lateral thick body, so that the thin body is not easy to break during cutting, further increasing the yield and stability of the veneer.

[0046] When the finishing processing is performed by vertical strategy, according to the shape and wall thickness of the wall of the set coverage area of the restoration, the vertical strategy is divided into zones, and the roughing, finishing and specific cutting strategies are implemented on each zone for layered vertical cutting processing from the surface to the inside. If the cutting trajectory or tool path is from outside to inside, more thin walls are exposed to the tool load, and if the strategy is from inside to outside, the bending strength of the cutting area can be increased by the adjacent outer thick wall to improve the yield and stability.

[0047] Along the interface of the sub-body, a specific interface processing strategy is constructed and generated by a specific tool and path method, so that the restorations in the porcelain block can be arranged more closely, and the arranged restorations occupy the porcelain block in the maximum way.

[0048] The implementation principle of the embodiment is: the method changes the traditional denture processing strategy, adopts sub-body processing and intervention processing method, avoids the need for support rod, and eliminates the disadvantages of roughing processing without support rod and manual removal of restoration after processing. Sub-body processing ensures the axial surface integrity and shape accuracy of the restoration, supports the whole process of automatic processing of the restoration, and at the same time, minimizes material waste and processing time, and improves the utilization rate of the porcelain block. Intervention processing fixes the sub-body and the porcelain block by using adhesive fixing material, ensures the processability of the restoration during cutting and the feasibility of automatic processing, and improves the processing stability. After cutting processing, the restoration is separated from the porcelain block by melting, dissolving or softening the adhesive fixing material, which eliminates the production process and manual operation disadvantages of manual cutting and polishing of the support rod, improves the shape integrity, shape accuracy and processing yield of the denture, reduces the production cost, reduces dust pollution, supports green environmental protection production, and is an advanced denture processing method.

[0049] Embodiment 2 The feature of the embodiment is that the application of the adhesive fixing material is in a layered manner, and the material in contact with the restoration has a dissolvable or soluble property. This layered application can better meet different needs. The outer layer material can provide strong bonding strength and support stability, while the inner layer material in contact with the restoration has a dissolvable or soluble property, which facilitates the separation of the restoration from the porcelain block in the subsequent step. Two different materials can be selected for the outer and inner layers, with high-strength adhesive for the outer layer and dissolvable material such as polymer material for the inner layer. During processing, the outer layer material ensures the firm connection and rigidity of the split body and the porcelain block, and in the restoration separation step, the inner layer material can be easily separated from the porcelain block by heating, solvent dissolution or softening.

[0050] The implementation principle of the embodiment is to apply the adhesive fixing material in a layered manner, combined with the inner layer material having a dissolvable, soluble or softening property, which ensures the rigid and stable connection of the split body and the porcelain block during processing, facilitates the separation of the restoration, further improves the efficiency and quality of the denture processing, avoids the difficulties and errors of manual operation, reduces the cost, and at the same time ensures the integrity, completeness and high precision of the shape and surface of the restoration.

[0051] Embodiment 3 The feature of the embodiment is that when the split strategy is set as the combination of the preferred front region and the whole remaining region, the computer-aided cutting strategy for the front region is loaded to the numerical control machining equipment first, and the split machining of the front region is performed and completed. This strategy can make the machining process become sequential rather than whole. Machining the front region first can provide positioning and reference for the subsequent whole remaining region machining, ensuring the integrity and machining precision of the whole restoration. When machining a restoration, the front region is determined as the cutting end, and the cutting end machining strategy program is loaded to the numerical control machining equipment for rough and fine machining of the cutting end. After completion, the machining strategy program for the whole remaining region is loaded to the equipment for rough and fine machining of the remaining region.

[0052] The implementation principle of the embodiment is that by machining the preferred front region first, accurate positioning and reference are provided for the subsequent whole remaining region machining, ensuring the connection and cooperation precision between each part of the split restoration, reducing the accumulation of errors, and maintaining high precision and efficiency of the whole denture machining.

[0053] Embodiment 4 The embodiment is characterized in that: when the split strategy is set as the combination of the preferred front area and the remaining sections, each computer-aided processing strategy is loaded to the numerical control processing equipment in sequence for the split of the remaining sections, and the processing of the split sections is respectively performed and completed. For a complex restoration body, the remaining areas are divided into several sections for processing, which can improve the processability of the restoration body without support rods, and ensure the coherence and connection precision of the split processing. The previous split processing can provide a reference for the subsequent split processing, and the processing strategy programs of the remaining split sections of the remaining areas are loaded in sequence according to the division and optimization order of the split sections, and each section is processed respectively.

[0054] The implementation principle of the embodiment is: for a complex restoration body, the front area is preferred, then the processing strategy programs of the remaining split sections of the remaining areas are generated according to the division and combination mode of the remaining split sections, each previous split processing can provide a coherent and accurate positioning and reference for the subsequent split processing, ensure the connection precision between the sections, and guarantee the processability, integrity, completeness and overall shape precision of the remaining sections of the complex restoration body, improve the quality and efficiency of the split processing, reduce the difficulty and error of the split processing, and make the processing of the complex restoration body more feasible, accurate and efficient.

[0055] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A method of fabricating a zirconia porcelain block to a restoration, characterized by: It comprises the following steps, Setting processing mode and strategy, according to the prosthesis, setting the sub-body mode, designing the specific processing mode of the body and its processing strategy, and generating the corresponding processing program through computer aided manufacturing software; Sub-body mode, using different sub-body processing mode, different from the traditional whole-body processing mode, respectively processing each sub-body independently and completely; Sub-body selection, dividing and selecting the sub-body of the whole body, and setting the incisal surface, occlusal surface or axial surface of the prosthesis as the front sub-body; Residual body selection, dividing and selecting the residual sub-body of the remaining area, and setting the remaining area as a whole segment or multiple segments; Interventional treatment, interventional treatment between sub-body processing, applying adhesive material at the interface of the front sub-body and the residual sub-body; Sub-body processing, after the adhesion and curing of the previous processing body, the subsequent processing body is cut, and the processing strategy of each sub-body is generated in sequence and imported into the numerical control equipment to complete the processing of each sub-body in turn; Sub-body processing can be single body independent or multiple body combined batch independent, including roughing, fine cutting and special processing; Prosthesis shedding, after the prosthesis is processed and formed, the porcelain block or the corresponding porcelain body part is placed in a special device to remove the material and repair the prosthesis, or the adhesive material is softened and peeled off, so that the prosthesis is separated from the porcelain block or the corresponding porcelain body part, and the finished prosthesis is obtained.

2. The method of claim 1 wherein: the zirconia ceramic block is a solid block of zirconia ceramic; and the zirconia ceramic block is a solid block of zirconia ceramic having a density of at least 6.0 g / cm3. For sub-body mode and strategy, the processing and forming of each sub-body are independent and complete in single body or multiple body combined batch, which includes single body processing or batch processing of roughing and fine cutting.

3. The method of claim 1, wherein the zirconia block is a porcelain block. The application of adhesive fixing material can be in single layer and multiple layers respectively; when multiple layers are used, the adhesive material can be separated, which is in contact with the prosthesis and has the characteristics of melting or dissolving; the adhesive fixing material and the separated adhesive curing play the role of bearing the processing load of the prosthesis; The adhesive fixing material can have the characteristics of melting or dissolving, or have the characteristic of softening.

4. The method of claim 2, wherein the zirconia block is a porcelain block. When the sub-body strategy is set as the combination of the front region and the remaining whole segment, the front sub-body and the residual sub-body generate independent sub-body complete processing strategies respectively through computer aided manufacturing software, each strategy contains the space path and feeding strategy of roughing, fine cutting and special cutting of the corresponding sub-body; when the sub-body strategy is set as the combination of the remaining multiple segments, the front sub-body and the rear sub-body of the remaining region adopt independent complete processing strategies, which include the same path and feeding strategy; the sub-body strategy includes the same path and feeding strategy.

5. The method for processing a zirconia ceramic block into a restoration according to claim 1, characterized in that: When the sub-body strategy involves segmentation of the remaining region, for any two combinations of the remaining segments, the front sub-body and the rear sub-body of the remaining region generate independent sub-body complete processing strategies respectively through computer aided manufacturing software, each strategy contains the space path and feeding strategy of roughing, fine cutting and special cutting of the corresponding sub-body.

6. The method for processing a zirconia ceramic block into a restoration according to claim 1, characterized in that: For each sub-body, the fine cutting strategy can adopt layered processing mode, according to the shape and thickness of the wall of the set coverage area of the prosthesis, set the required number of layers, determine the layer thickness of the last process, divide the fine processing surface into several layers of sub-surface, and perform fine processing layer by layer or sub-surface by sub-surface.

7. The method for processing a zirconia ceramic block into a restoration according to claim 1, characterized in that: For each sub-body, the fine cutting processing can adopt a vertical strategy, according to the shape and wall thickness of the wall of the set covering area of the restoration body, the vertical strategy is divided into sub-zones, the coarse cutting, fine cutting and special cutting strategies are implemented on each sub-zone, and the vertical cutting processing from the surface to the inside of the sub-body is carried out.

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