Personalized abutment precision manufacturing process

Abstract

The application provides a personalized abutment precision manufacturing process, comprising the following steps: S1, morphology design; S2, layout programming; S3, machining center assembly; S4, cutting machining; and S5, abutment polishing; the abutment is polished by a handheld polisher. The application can guarantee the precision of personalized abutment machining, and continuous verification proves that the process technology is mature and stable, can improve the product machining quality, and reduce the risk of personalized abutment use in the clinic.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of dental implants, and in particular to a personalized abutment precision manufacturing process. BACKGROUND

[0002] Personalized abutments are a popular repair method in the dental industry, mainly used for single and multiple implant aesthetic repair of patients. It can design personalized transgingival abutments at any angle and orientation according to the patient's tooth morphology, and can also solve complex medical records in the patient's mouth. More and more people are willing to choose or accept such a repair method. This technology field application extends to the final restoration through digital implantation. After the patient's implant surgery is completed, a scanning rod is installed to establish data, personalized abutment design and layout processing cutting, and finally denture production and installation. The entire design and production link is widely used in the field of dental implantation and repair. There are various problems and risks in the process of personalized abutment processing and production. Our company is constantly improving and innovating in response to various problems. At present, a design and processing and production process is invented.

[0003] At present, the traditional way of processing and producing personalized abutments will cause the abutment interface part to be unstable in step control, and sometimes overcutting will occur. The interface part step needs to be reserved larger and needs to be manually polished, the shoulder part roughness cannot be guaranteed and needs to be manually polished, and the transgingival part roughness cannot be guaranteed and needs to be manually polished. A large amount of polishing treatment is required. The requirement for long-term polishing personnel is relatively high, and improper polishing often leads to the scrapping of personalized abutments.

[0004] The traditional way of processing and producing personalized abutments is suitable for solving a small amount of market demand, but not suitable for large demand trends. For example: the number of personalized abutments is within a certain range (for example, 200 per day). In this way, manual polishing can solve the problem. After the number exceeds a certain share (for example, 1500 per day), the polishing personnel needs to be increased. Due to human factors, the quality of the abutment polishing surface cannot be completely guaranteed. SUMMARY

[0005] Therefore, the present application aims to provide a personalized abutment precision manufacturing process that can ensure the accuracy of personalized abutment processing and has been proven to be mature and stable, thereby improving product processing quality and reducing the risk of personalized abutment use in clinical patients.

[0006] To achieve the above object, the technical scheme of the present application is as follows:

[0007] The personalized abutment precision manufacturing process comprises the following steps:

[0008] S1, morphological design; using EXOCAD software, according to the patient's oral situation, design a personalized abutment, generate a contour line at the shoulder platform position;

[0009] S2, layout programming; the personalized abutment data designed in S1 is imported into MILLBOX software for layout, the shoulder contour line is captured, and the tool path is generated;

[0010] S3, machining center assembly; the abutment column is installed on the tool clamp, and the tool clamp is installed on the machining center;

[0011] S4, cutting; using an industrial four-axis machining center, setting the cutting parameters, cutting the abutment column; after cutting, turn off the machining center;

[0012] S5, abutment polishing; hand-held polisher is used to polish the abutment; rotate along the transgingival surface.

[0013] Further, in step S2, the interface connection position step is reserved with a maximum allowance of 0.02mm.

[0014] Further, in step S3, the assembly accuracy of the abutment column and the tool clamp is within 0.01mm.

[0015] Further, step S4 cutting further includes the following steps:

[0016] S41, using T1 to roughen the abutment column at 0° and 180°;

[0017] S42, using T2 to semi-finish the abutment at 0° and 180°;

[0018] S43, using T3 to finish the abutment at 90°;

[0019] S44, using T4 to clear the corner of the shoulder contour line of the abutment at 0° and 180°.

[0020] Further, the tool clamp includes a clamp body, a fixing bolt and a baffle, the clamp body is provided with a mounting hole for mounting the abutment to be machined, the fixing bolt is used to fix the abutment in the mounting hole, the baffle is connected with the clamp body and is used to prevent the fixing bolt from falling off, the clamp body is in the shape of an I-shaped structure as a whole, both ends of the clamp body are used as fixing parts, and the middle part is used as an assembly part, the fixing part is used to fix the machining center, and the assembly part is used to install the abutment to be machined.

[0021] Further, the first fixing part is provided with three fixing round holes, and the second fixing part is provided with three fixing long round holes, the fixing round holes and the fixing long round holes are used to fix the clamp body on the machining center through bolts.

[0022] Further, the assembly part is provided with a plurality of mounting holes on both sides, the mounting holes are through holes, the two ends of the mounting holes are used as a port and a tail port respectively, and the port and the tail port of each mounting hole are arranged at intervals with the side of the assembly part as a reference.

[0023] Further, the number of mounting holes on each side of the assembly part is three, and a step structure is arranged in the mounting hole.

[0024] Further, a clamping groove is arranged at the tail port of each mounting hole on the fixing part, two clamping screw holes are arranged on the end face of the clamping groove, and a baffle is arranged in the clamping groove and fixedly connected with the fixing part through bolts.

[0025] Further, an installation plane is arranged on the inner surface of the mounting hole, so that the inner surface of the mounting hole forms a D-shaped structure, the inner surface of the mounting hole is matched with the contour of the abutment, and the installation plane of the mounting hole can limit the abutment.

[0026] Compared with the prior art, the personalized abutment precision manufacturing process has the following advantages:

[0027] (1) The personalized abutment precision manufacturing process improves the surface quality of the gingival part, shoulder part and interface part of the personalized abutment through a plurality of technical cores added to the traditional process, such as improvement of the tooling fixture, adjustment of the design and layout programming, and adjustment of the cooperation between the tooling fixture and the product, reduces the manual polishing operation process, reduces the scrap phenomenon in the personalized abutment manufacturing process, reduces the labor cost, and improves the production efficiency.

[0028] (2) The personalized abutment precision manufacturing process combines the machinable abutment column, has reliable precision and stable quality, can achieve a tolerance gap of 0.01mm or less, and the smaller the gap, the better the installation of the machinable abutment column tooling fixture. Through various verifications, it is proved that the tooling fixture of this type cooperates with the rigid industrial equipment to process stable quality, reduces the abnormal complaints of customers on the personalized abutment, and reduces the risk of use by patients in the clinic. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0030] Figure 1 The tooling fixture described in the embodiments of the present application is a schematic diagram;

[0031] Figure 2 A sectional view of a fixing bolt mounted into a mounting hole according to an embodiment of the present application;

[0032] Figure 3 A front view of a mounting hole according to an embodiment of the present application;

[0033] Figure 4 A shoulder contour line on an abutment according to an embodiment of the present application;

[0034] Figure 5 A 0° machining diagram according to an embodiment of the present application;

[0035] Figure 6 A 180° machining diagram according to an embodiment of the present application;

[0036] Figure 7 A 90° machining diagram according to an embodiment of the present application.

[0037] Explanation of reference signs:

[0038] 1, clamp body; 11, fixed part; 12, assembly part; 2, fixing bolt; 3, baffle; 4, mounting hole; 41, step structure; 42, mounting plane; 5, abutment; 6, shoulder contour line. DETAILED DESCRIPTION

[0039] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0041] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0043] Personalized abutment precision manufacturing process, Figures 1-7 As shown, comprising the following steps:

[0044] S1, shape design; using EXOCAD software, designing a personalized abutment according to the oral condition of the patient, generating a contour line at the shoulder platform position; when saving the file, saving and outputting the positioning file and the STL file at the same time;

[0045] S2, layout programming; importing the personalized abutment data designed in S1 into MILLBOX software for layout, grabbing the shoulder platform contour line 6, and generating a tool path; the positioning contour line is automatically grabbed during CAM layout programming, realizing the corner processing of the shoulder platform position, and improving the roughness of the root of the abutment shoulder platform;

[0046] S3, machining center assembly; mounting the abutment column to the tooling fixture, and then mounting the tooling fixture to the machining center;

[0047] S4, cutting processing; using an industrial four-axis machining center, setting the cutting parameters, and cutting the abutment column; after cutting, turn off the machining center; the finishing ratio is set to F1000;

[0048] S5, abutment polishing; holding a polishing machine to polish the abutment; rotating along the transgingival surface.

[0049] Preferably, in step S2, the maximum excess of the interface connection position is reserved 0.02mm.

[0050] Preferably, in step S3, the assembly accuracy of the abutment column and the tooling fixture is within 0.01mm, when the fixture is rotated by 90°, the personalized abutment transgingival is perpendicular to the tool, and the isohypse surrounding processing is realized through the function of CAM layout programming.

[0051] Preferably, in step S4, the cutting processing further comprises the following steps: the machining center first processes at 0° position, then processes at 180° position, and finally processes at 90° position

[0052] S41. Use T1 to roughen the foundation column at 0° and 180°.

[0053] S42. Use a T2 tool to perform semi-finishing of the base at 0° and 180°.

[0054] S43. Use a T3 tool to finish the base at 90°.

[0055] S44. Use a T4 tool to perform corner clearing and finishing on the shoulder contour of the base at 0° and 180°.

[0056] The specifications of the machining tools are shown in the table below;

[0057]

[0058]

[0059] Preferred tooling fixtures, such as Figures 1-3 As shown, the fixture is installed in a machining center and includes a fixture body 1, fixing bolts 2 and a baffle 3. The fixture body 1 is provided with mounting holes 4 for mounting a base 5 to be processed. The fixing bolts 2 are used to fix the base 5 in the mounting holes 4. The baffle 3 is connected to the fixture body 1 to prevent the fixing bolts 2 from falling off.

[0060] Preferably, the fixture body 1 has an overall I-shaped structure, with the two ends of the fixture body 1 serving as fixing parts 11 and the middle part serving as assembly parts 12. The fixing parts 11 are used to fix with the machining center, and the assembly parts 12 are used to install onto the base 5 to be processed.

[0061] Preferably, the first fixing part 11 is provided with three fixing round holes, and the second fixing part 11 is provided with three fixing elongated holes. The fixing round holes and fixing elongated holes enable the fixture body 1 to be fixed to the machining center by bolts, and the elongated holes enable the adjustment of the installation position.

[0062] Preferably, the assembly part 12 has a plurality of mounting holes 4 on both sides. The mounting holes 4 are through holes, and the two ends of the mounting holes 4 serve as the port and the tail, respectively. Taking one side of the assembly part 12 as a reference, the port and the tail of each mounting hole 4 are spaced apart, such as... Figure 1 As shown, each mounting hole 4 does not interfere with each other and does not affect the processing.

[0063] Preferably, the number of mounting holes 4 on each side of the assembly part 12 is 3.

[0064] Preferably, the mounting hole 4 is provided with a stepped structure 41, which limits the positioning of the fixing bolt 2. Then, it is threadedly connected to the base 5 to fix the base 5 in the mounting hole 4.

[0065] Preferably, a clamping groove is arranged at the tail end of each mounting hole 4 on the fixing part 11, two clamping screw holes are arranged on the end face of the clamping groove, the baffle 3 is installed into the clamping groove, and the baffle 3 is fixedly connected with the fixing part 11 through bolts.

[0066] Preferably, the baffle 3 is provided with an observation hole, and the inner diameter of the observation hole is smaller than the inner diameter of the tail end of the mounting hole 4.

[0067] Preferably, the inner surface of the mounting hole 4 is provided with a mounting plane 42, so that the inner surface of the mounting hole 4 forms a D-shaped structure, the inner surface of the mounting hole 4 is matched with the contour of the abutment 5, and the mounting plane 42 of the mounting hole 4 can limit the abutment 5.

[0068] Working principle, the abutment 5 is installed into the mounting hole 4 from the port, then the fixing bolt 2 is inserted into the mounting hole 4 from the tail end, and is threadedly connected with the abutment 5, the step structure 41 is used to realize the fixed connection between the abutment 5 and the fixing bolt 2, then the baffle 3 is installed into the clamping groove to block the tail end, then the clamp body 1 is installed into the machining center, the machining center has a position for fixing the clamp body 1, and then machining is started.

[0069] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A personalized abutment precision manufacturing process characterized by: It comprises the following steps: S1, morphological design; using EXOCAD software, according to the patient's oral situation, design a personalized abutment, generate a contour line at the shoulder platform position; S2, layout programming; the data of the personalized abutment designed in S1 is imported into MILLBOX software for layout, the shoulder contour line is captured, and the tool path is generated; S3, machining center assembly; the abutment column is installed on the tool fixture, and the tool fixture is installed on the machining center; S4, cutting; using an industrial four-axis machining center, setting the cutting parameters, cutting the abutment column; after cutting, turn off the machining center; S5, abutment polishing; hand-held polisher is used to polish the abutment; rotate along the transgingival surface; Step S4 cutting further comprises the following steps: S41, using T1 tool to roughen the abutment column at 0° and 180°; S42, using T2 tool to semi-finish the abutment at 0° and 180°; S43, using T3 tool to finish the abutment at 90°; S44, using T4 tool to clear the corner of the shoulder contour line of the abutment at 0° and 180°; The tool fixture comprises a fixture body, a fixing bolt and a baffle, the fixture body is provided with a mounting hole for mounting the abutment to be machined, the fixing bolt is used to fix the abutment in the mounting hole, and the baffle is connected with the fixture body and used to prevent the fixing bolt from falling off. The fixture body is in the shape of an I-shaped structure as a whole, both ends of the fixture body are used as fixing parts, and the middle part is used as an assembly part. The fixing parts are used to fix the machining center, and the assembly part is used to install the abutment to be machined.

2. The personalized abutment precision manufacturing process of claim 1, wherein: In step S2, the maximum allowance of the interface connection position step is 0.02mm.

3. The personalized abutment precision manufacturing process of claim 1, wherein: In step S3, the assembly accuracy of the abutment column and the tool fixture is within 0.01mm.

4. The personalized abutment precision manufacturing process of claim 1, wherein: The first fixing part is provided with three fixing round holes, and the second fixing part is provided with three fixing long round holes. The fixing round holes and the fixing long round holes realize the fixation of the fixture body on the machining center through bolts.

5. The personalized abutment precision manufacturing process of claim 4, wherein: The assembly part is provided with a plurality of mounting holes on both sides, the mounting holes are through holes, the two ends of the mounting holes are used as a port and a tail port, and the port and the tail port of each mounting hole are arranged at intervals on one side of the assembly part.

6. The personalized abutment precision manufacturing process of claim 5, wherein: The number of mounting holes on each side of the assembly part is three, and a step structure is arranged in the mounting holes. The step structure realizes the limiting of the fixing bolt.

7. The personalized abutment precision manufacturing process of claim 5, wherein: A clamping groove is arranged on the fixing part at the tail port of each mounting hole, two clamping screw holes are arranged on the end face of the clamping groove, the baffle is installed in the clamping groove, and the baffle is fixedly connected with the fixing part through bolts.

8. The personalized abutment precision manufacturing process of claim 7, wherein: The inner surface of the mounting hole is provided with a mounting plane, so that the inner surface of the mounting hole forms a D-shaped structure. The inner surface of the mounting hole is matched with the contour of the abutment, and the mounting plane of the mounting hole can limit the abutment.

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