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Quantitative evaluation method of compatibility of removable partial denture cast metal support

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CN104000668A
CN104000668A CN 201410223128 CN201410223128A CN104000668A CN 104000668 A CN104000668 A CN 104000668A CN 201410223128 CN201410223128 CN 201410223128 CN 201410223128 A CN201410223128 A CN 201410223128A CN 104000668 A CN104000668 A CN 104000668A
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metal
support
method
compatibility
rpd
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CN 201410223128
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Chinese (zh)
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CN104000668B (en )
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牛茂
李月
许在俊
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深圳职业技术学院
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Abstract

The invention is suitable for the field of analyzing compatibility of false teeth and provides a quantitative evaluation method of compatibility of a removable partial denture cast metal support. The method comprises the following steps: A, preparing a standard dentition defect plaster model; B, preparing an RPD cast metal support on the standard dentition defect plaster model; C, preparing a plaster model containing RPD metal support tissue surface shape by a complex method; D, evaluating the compatibility of the RPD metal support by applying an optical scanning three-dimensional measurement method. By adopting quantitative analysis, the first-phase preparation is simple to operate, the detection result reflected by numerical values is objective and reliable, the detection precision is high, and the fine deformation of the RPD metal support can be further detected. By observing a 3D comparative result graph, the part with poor compatibility can be quickly found to facilitate subsequent processing error analysis, so that the processing process is optimized.

Description

一种可摘局部义齿铸造金属支架适合性的定量评价方法 A quantitative evaluation method of casting metal stent partial denture suitability

技术领域 FIELD

[0001] 本发明属于义齿适合性分析领域,尤其涉及一种可摘局部义齿铸造金属支架适合性的定量评价方法。 [0001] The present invention belongs to the denture for analysis, and more particularly relates to a partial denture cast metal bracket quantitative evaluation method of suitability.

背景技术 Background technique

[0002] 可摘局部义齿(Removable Partial Denture, RPD)的金属支架传统米用熔模铸造的方法制作,其适合性是评价其制作精度的一个重要指标。 [0002] partial dentures (Removable Partial Denture, RPD) a conventional metal stent rice production investment casting method, which is an important indicator for the evaluation of the accuracy of its production. 但由于RPD金属支架的结构复杂,就位后与口腔组织间在三维空间上都存在间隙,因此对其适合性的定量评价是一个难题。 However, due to the complex structure RPD metal stent in place after the oral tissues and are present between the gap in the three-dimensional space, and therefore its suitability for quantitative evaluation is a difficult problem.

[0003]目前用于评价可摘局部义齿铸造金属支架适合性的方法有以下几种: [0003] The present method for evaluating partial denture fit of casting metal stent removable following:

[0004] 1.就位法:将制作完成的RPD铸造金属支架就位于石膏模型上,然后分别对卡环、牙合支托、连接体等主要部位进行人为观察,进而对其适合性进行主观评价。 [0004] 1. Method place: RPD of the finished cast metal bracket located on the plaster model, respectively, and then the main portion of the snap ring, occlusal holder, such as the connector artificially observed, and thus its suitability subjectively Evaluation. 一些细微变形不易察觉。 Some minor modification imperceptible.

[0005] 2.显微镜直接测量法:将制作完成的RPD铸造金属支架就位于石膏模型上,在测量显微镜下对支架与模型间的间隙进行测量,进而评价其适合性。 [0005] 2. Direct Measurement Microscope: RPD of the finished cast metal bracket located on the plaster model, measurement of the gap between the holder and the model measurement microscope, the evaluation of their suitability.

[0006] 3.切开法:将制作完成的RPD铸造金属支架就位于石膏模型上,然后再将金属支架与模型在同一部位横向切开,在显微镜下对两者间的间隙进行测量,进而评价其适合性。 [0006] 3. incision: RPD of the finished cast metal bracket located on the plaster model, and then the metal bracket and a transverse incision model at the same site, the measurement of the gap between them under a microscope, and further to evaluate its suitability.

[0007] 传统评价方法存在很多弊端。 There are many drawbacks [0007] traditional evaluation methods.

[0008] 1.就位法是主观评价法,缺乏有效数据支持,无法定量评价,不客观。 [0008] 1. The place is a subjective evaluation method, the lack of valid data, no quantitative evaluation, not objective.

[0009] 2.显微镜直接观察法只能对支架局部的适合性进行评价,不够全面。 [0009] 2. Direct microscopic observation of suitability only locally from a stent was evaluated, not comprehensive.

[0010] 3.切开法需要破坏模型和支架,在切开的过程中可能会造成模型的破损及支架的变形,影响测量的准确性,并且只能对局部进行测量,不够全面。 [0010] 3. incision method requires the destruction of the bracket model and in the process cut may cause damage and deformation of the stent models, affect measurement accuracy, and can only be measured locally, not comprehensive enough.

发明内容 SUMMARY

[0011] 本发明提供一种可摘局部义齿铸造金属支架适合性的定量评价方法,旨在解决传统评价方法存在的问题。 [0011] The present invention provides a method of quantitative evaluation of removable partial denture for casting metal of the stent, is intended to solve the problem of traditional methods.

[0012] 本发明是这样实现的,一种可摘局部义齿铸造金属支架适合性的定量评价方法,所述定量评价方法包括以下步骤: [0012] invention is achieved in a removable partial denture quantitative evaluation method of casting metal stent for the quantitative evaluation method comprising the steps of:

[0013] A、制作标准牙列缺损模型; [0013] A, a calibration model of dentition defect;

[0014] B、在标准牙列缺损石膏模型上制作RPD铸造金属支架; [0014] B, making the cast metal support RPD on a standard plaster model of dentition defect;

[0015] C、利用复模法制作含有RPD金属支架组织面形态的石膏模型; [0015] C, using a complex metal molding produced RPD plaster model containing tissue surface morphology of the scaffold;

[0016] D、应用光学扫描三维测量法评价制作的RPD金属支架的适合性。 [0016] D, applications for optical scanning of three-dimensional measurement method was evaluated based RPD metal stents.

[0017] 本发明的进一步技术方案是:所述步骤C包括以下步骤: [0017] Further aspect of the present invention is that: the step C comprises the steps of:

[0018] Cl、将制作完成的RPD金属支架戴入原始模型并边缘封蜡; [0018] Cl, in the finished metal frame RPD wear into the original model and the edge sealing wax;

[0019] C2、将边缘封蜡后的原始模型装入复模盒并且灌注硅橡胶印模材料; [0019] C2, the original model of the edge sealing wax mold box and charged complex perfused silicone rubber impression material;

[0020] C3、硅橡胶凝固后得到RPD金属支架戴入石膏模型后的印模;[0021] C4、将RPD金属支架复位于所取印模中灌注超硬石膏模型材料; [0020] C3, the silicone rubber obtained after solidification RPD metal stent after wearing the stamp into the plaster model; [0021] C4, the metal bracket RPD reset to take an impression of the die stone model perfusion material;

[0022] C5、超硬石膏凝固后得到复制有RPD金属支架组织面的石膏模型。 [0022] C5, obtained after solidification die stone plaster model of replication RPD tissue surface of the metal stent.

[0023] 本发明的进一步技术方案是:所述步骤D包括以下步骤: [0023] In a further aspect of the present invention is that: the step D comprises the steps of:

[0024] D1、应用光学扫描仪分别对原始模型和复制模型进行扫描,获取两者三维数据; [0024] D1, respectively, an optical scanner application model and the original copy is scanned model, both the three-dimensional data acquisition;

[0025] D2、应用逆向校核软件对两者三维数据进行比对得到3D比较结果图; [0025] D2, the reverse checking software application for both three-dimensional data for 3D alignment of FIG comparison result obtained;

[0026] D3、通过分析3D比较结果图对RPD金属支架的适合性进行全面客观的评价。 [0026] D3, suitability for metal stents RPD comprehensive analysis of 3D objective evaluation by comparison of FIG.

[0027] 本发明的进一步技术方案是:所述逆向校核软件采用的是Geomagic Qualifyl2.0软件对模型数据进行比较。 [0027] A further aspect of the present invention is that: the reverse checking software uses Geomagic Qualifyl2.0 software model data comparison.

[0028] 本发明的进一步技术方案是:所述光学扫描采用非接触式白光扫描。 [0028] Further aspect of the present invention is that: the non-contact optical scanning white light scanning.

[0029] 本发明的进一步技术方案是:所述光学扫描采用分辨率130万像素、扫描范围10OmmX IOOmmX 75mm、米样点距0.3mm。 [0029] Further aspect of the present invention is that: the optical scanning with a resolution of 1300000 pixels, a scan range 10OmmX IOOmmX 75mm, rice samples pitch 0.3mm. [0030] 本发明的进一步技术方案是:所述光学扫描完成得到的数据格式为STL格式。 [0030] Further aspect of the present invention is that: the optical scanning is performed to obtain the data format STL format.

[0031] 本发明的进一步技术方案是:所述Geomagic Qualifyl2.0软件在模型对比中进行拟合对齐、并在同一坐标位置下重合,对比误差的最大与最小临界值参数分别为+0.5mm和-0.5mm。 [0031] Further aspect of the present invention is: in the software model Geomagic Qualifyl2.0 fitting contrast aligned and overlapped in the same coordinate position, the maximum and minimum threshold error comparison parameters are + 0.5mm and -0.5mm.

[0032] 本发明的进一步技术方案是:所述Geomagic Qualifyl2.0软件在模型对比中进行拟合对齐、并在同一坐标位置下重合,对比误差的最大与最小名义值参数分别为+0.1mm和-0.1mm。 [0032] Further aspect of the present invention is that: the alignment Geomagic Qualifyl2.0 fitting software model in contrast, and superimposed in the same coordinate position, the nominal value of the maximum and minimum error parameter comparison and are + 0.1mm -0.1mm.

[0033] 本发明的有益效果是:采用定量分析,前期准备工作操作简单;检测结果以数值形式体现,客观可靠;检测精度高,RPD金属支架的细微变形也可检出;通过对3D比较结果图的观察,可快速找出其适合性较差的部位,有助于后续的加工误差分析,进而对加工工艺进行优化。 [0033] Advantageous effects of the present invention are: quantitative analysis, simple preparatory work; detection results embodied in the form of numerical, objective and reliable; high precision, the RPD fine metal stent deformation can be detected; the comparison result by 3D FIG observation can quickly find out the site suitable poor, facilitate subsequent processing of error analysis, and thus to optimize the process.

附图说明 BRIEF DESCRIPTION

[0034] 图1是本发明实施例提供的可摘局部义齿铸造金属支架适合性的定量评价方法的流程图。 [0034] FIG. 1 is a embodiment of the present invention provides removable partial denture cast metal flowchart of a method for quantitative assessment of the stent.

具体实施方式 detailed description

[0035] 在本方法中需要材料和设备如下,上颌标准牙列缺损印模一个(用于制作原始石膏模型)、超硬石膏粉、复模用娃橡胶、基托腊、光学扫描仪及Geomagic Qualifyl2.0软件。 [0035] The following materials and equipment required in this process, standard maxillary dentition impression of a defect (for making the original plaster model), die stone powder, baby complex mode with rubber denture wax, an optical scanner and Geomagic Qualifyl2.0 software.

[0036] 图1示出了本发明提供的可摘局部义齿铸造金属支架适合性的定量评价方法的流程图,其详述如下: [0036] FIG. 1 shows a flowchart of a method of quantitative evaluation removable partial denture casting metal of the present invention provides for a stent of which are detailed below:

[0037] 步骤SI中,在本步骤中应用超硬石膏粉和标准牙列缺损印模制作标准的牙列缺损石膏模型(原始石膏模型)。 [0037] Step SI, the application of powder and die stone plaster model of dentition defect (original plaster model) standard defect dentition impression made standard in this step.

[0038] 步骤S2中,在本步骤中在标准牙列缺损石膏模型上制作可摘局部义齿的RPD铸造金属支架;在制作的过程中应用传统的工艺,制作金属支架的蜡型,将制作好的蜡型进行包埋、铸造、打磨抛光,至此完成了RPD铸造金属支架制作。 [0038] In Step S2, in this step on a standard plaster model of dentition defect making a removable partial denture RPD casting metal stent; conventional application process in the production process, the metal stent made of wax, will produce good the wax-embedding, casting, polishing, thereby completing the production RPD cast metal bracket.

[0039] 步骤S3中,在本步骤中将制作完成的金属支架就位于标准牙列缺损石膏模型,并且将支架边缘进行封蜡密封处理。 [0039] In step S3, the finished metal frame in the present step is just a standard plaster model of dentition defect, and the stent edges sealed sealing wax. [0040] 步骤S4中,在本步骤中将进行封蜡密封处理的RPD金属支架和标准牙列缺损石膏模型放入复模盒中,将真空调拌好的硅橡胶材料灌注进入复模盒中,在灌注硅橡胶时,复模盒一直处于震荡状态中,这样能够将硅橡胶材料均匀的分散在复模盒中,在复模盒内不会存有气泡。 RPD and the standard metal bracket dentition S4, sealing wax sealing process in the present step [0040] Step defect plaster model into complex mold box, the true air conditioning marinated silicone rubber material is poured into the mold box complex when filling the silicone rubber, the cartridge has been in a complex mode oscillation state, which can be uniformly dispersed in the silicone rubber material complex mold box, the mold box does not complex bubbles there.

[0041] 步骤S5中,在本步骤中待灌注好的复模盒中的硅橡胶材料凝固后,将标准牙列缺损石膏模型取出,得到金属支架戴入原始石膏模型后的硅橡胶印模。 S5, in the present step to be a good filling [0041] Step a silicone rubber material in the mold box complex solidified, standard plaster model of dentition defect removed, to obtain a metal stent after wearing the silicone impression of the original plaster model.

[0042] 步骤S6中,在本步骤中将RPD金属支架从原始石膏模型上取下,将金属支架复位于所取印模中,将印模中灌注调拌好的超硬石膏材料,灌注超硬石膏材料是在震荡的同时缓慢的进行,而超硬石膏材料是在真空条件下调拌的。 [0042] In step S6, the RPD metal stent is removed from the plaster model of the original in the present step, the metal stent reset to the impression taken, the stamp perfusion tone marinated die stone, infusion over anhydrite material is performed while the slow shocks, and die stone materials are mixed in a vacuum of down.

[0043] 步骤S7中,在本步骤中待超硬石膏材料凝固后得到复制有PRD金属支架组织面的超硬石膏模型。 [0043] In Step S7, the die stone to be solidified in the present die stone models obtained in step replication PRD metal surface tissue scaffold.

[0044] 步骤S8中,在本步骤中利用扫描仪分别对原始石膏模型(即模型A)与复制的超硬石膏模型(即模型B)进行扫描,扫描完成后分别得到两者的STL格式数据。 [0044] Step S8, the scanner original plaster model, respectively (i.e., Model A) is scanned with the die stone models (i.e., model B) utilized in the present copying step, respectively STL format data for both the scanning is completed . 其中对两个模型扫描是在同一工作台上完成,并且扫描原理为非接触式白光扫描,其中参数为:相机分辨率为130万像素、扫描范围100_X100_X75mm、采用点距0.3_。 Wherein the scanning of the two models at the same workbench is completed, and the principle of non-contact scanning white scanning, wherein parameters: camera resolution of 130 million pixels, a scan range 100_X100_X75mm, using pitch 0.3_.

[0045] 步骤S9中,在本步骤中将模型A和模型B的扫描得到的两组数据导入GeomagicQualifyl2.0软件,将模型A的数据设定作为参考方,模型B的数据设定作为测试方,采用Geomagic Qualifyl2.0软件的最佳拟合对齐两者在同一坐标位置下重合,将其误差的最大与最小临界值分别定义为+0.5mm和-0.5mm,最大与最小名义值分别定义为+0.1mm和-0.1mm。 [0045] Step S9, the data in the two software GeomagicQualifyl2.0 introduced in the model of the present scanning steps A and B of the obtained model, the data model A is set as the reference side, the data set as a test model B side both best-fit alignment software using Geomagic Qualifyl2.0 in the same coordinate position coincide, the maximum and minimum threshold value are defined as the error and -0.5 mm + 0.5mm, the maximum and minimum values ​​are defined as the nominal and + 0.1mm -0.1mm. 应用Geomagic Qualifyl2.0软件对两组模型的数据进行比较分析得到3D比较结果图。 Geomagic Qualifyl2.0 application software for data analysis of the two models are compared to obtain a comparison result 3D FIG.

[0046] 步骤S10,在本步骤中通过分析3D比较结果图,首先对该可摘局部义齿RPD金属支架的整体适合性进行定量评价,统计所得的整体偏差数值类型,如表一所示;在形成3D比较结果图中产生偏差的部分用不同的颜色带来表示,具体说明见表2。 [0046] Step S10, the analysis in this step by comparison to FIG 3D, the first removable partial denture RPD metal stent overall suitability quantitative evaluation, overall statistical deviation value type obtained, as shown in Table I; the forming part of a comparison result of bias 3D drawing showing bring different colors, as described in Table 2. 通过观察3D比较结果图,可根据RPD金属支架不同部位所呈现的颜色来测量该部位与石膏模型间的间隙数值范围,实现对其局部适合性的定量评价。 FIG. 3D by observing the result of the comparison, the numerical ranges may be measured gap between the portion RPD gypsum model according to the different parts of the presented color metallic stent, to achieve local quantitative evaluation of its suitability.

[0047] 应用“复模法”和“三维扫描法”实现了对可摘局部义齿铸造金属支架适合性的定量分析,采用本方法具有以下效果:1.“复模法”巧妙的将RH)支架组织面形态,通过复模的方式转移到了石膏模型的表面,操作简单,为“三维扫描法”奠定了良好基础。 [0047] Application of "complex molding" and "three-dimensional scanning" method to the quantitative removable partial denture cast metal bracket suitability for analysis, the present method has the following effects: 1 "complex molding" clever RH) scaffolds for tissue surface morphology, by way of transfer molding to the complex surface of the plaster model, the operation is simple, the "three-dimensional scanning method" laid a good foundation. 2,应用光学扫描仪采用不接触的方式对原始石膏模型与复制的石膏模型进行扫描,进而获取两者的数据。 2, application of optical scanner uses a non-contact manner the original plaster model is scanned and copied plaster model, then obtain data for both. 既不破坏模型,也避免了支架的后期变形。 Not undermine the model, but also to avoid late stent deformation. 3.应用逆向校核软件可实现原始模型数据与复制模型数据的比对,整个过程自动、快速、客观。 3. Application of Reverse checking software enables data than the original model and replicate the model data, the whole process is automatic, fast and objective. 形成的3D比较结果图用不同颜色带显示支架不同部位组织面与原始模型组织面间的3D偏差情况,有利于全面观察和评价其适合性。 3D show a comparison of FIG. 3D deviation is formed between the different parts of the original tissue scaffold surface model tissue surface with different colors, conducive to a comprehensive observation and evaluation of its suitability.

[0048] 表1模型B与模型A的偏差统计情况 [0048] Table 1 deviation statistics model A and model B

[0049] [0049]

Figure CN104000668AD00061

[0050] 表23D比较结果图说明 [0050] FIG comparison result described in Table 23D

[0051] [0051]

Figure CN104000668AD00062

[0052] 以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。 [0052] The foregoing is only preferred embodiments of the present invention but are not intended to limit the present invention, any modifications within the spirit and principle of the present invention, equivalent substitutions and improvements should be included in the present within the scope of the invention.

Claims (9)

1.一种可摘局部义齿铸造金属支架适合性的定量评价方法,其特征在于,所述定量评价方法包括以下步骤: A、制作标准牙列缺损模型; B、在标准牙列缺损石膏模型上制作RPD铸造金属支架; C、利用复模法制作含有RPD金属支架组织面形态的石膏模型; D、应用光学扫描三维测量法评价制作的RPD金属支架的适合性。 A quantitative method for evaluating partial denture fit metal support of casting, characterized in that the quantitative evaluation method comprising the steps of: A, creating a standard model of dentition defect; B, on a standard plaster model of dentition defect RPD making cast metal bracket; C, made using the complex molding surfaces containing plaster model RPD metal scaffolds for tissue morphology; D, application of optical scanning of three-dimensional measurement method was evaluated based on suitability RPD metal stents.
2.根据权利要求1所述的定量评价方法,其特征在于,所述步骤C包括以下步骤: Cl、将制作完成的RPD金属支架戴入原始模型并边缘封蜡; C2、将边缘封蜡后的原始模型装入复模盒并且灌注硅橡胶印模材料; C3、硅橡胶凝固后得到RPD金属支架戴入石膏模型后的印模; C4、将RPD金属支架复位于所取印模中灌注超硬石膏模型材料; C5、超硬石膏凝固后得到复制有RPD金属支架组织面的石膏模型。 The quantitative evaluation method according to claim 1, wherein the step C comprises the steps of: Cl, RPD of the finished metal frame model wearing the raw edge and sealing wax; C2, the edge sealing wax the original model was charged complex mold box and filling the silicone rubber impression material; C3, the silicone rubber obtained after solidification RPD metal stent after wearing the impression plaster model; C4, the metal bracket RPD reset to take an impression of the perfusion ultra anhydrite model material; C5, solidified die stone plaster model tissue replicated RPD metal stent surface.
3.根据权利要求2所述的定量评价方法,其特征在于,所述步骤D包括以下步骤: D1、应用光学扫描仪分别对原始模型和复制模型进行扫描获取两者三维数据; D2、应用逆向校核软件对两者三维数据进行比对得到3D比较结果图; D3、通过分析3D比较结果图对RPD金属支架的适合性进行全面客观的评价。 3. Quantitative Evaluation Method according to claim 2, wherein the step D comprises the steps of: D1, respectively, an optical scanner application model and the original model is scanned copy of both acquiring three-dimensional data; D2 of, the application of reverse checking software to both the three-dimensional data obtained comparing FIG. 3D comparison; D3, full and objective evaluation of the suitability of metallic stents by RPD 3D analysis results comparing FIG.
4.根据权利要求3所述的定量评价方法,其特征在于,所述逆向校核软件采用的是Geomagic Qualify 12.0软件对模型数据进行比较。 4. Quantitative Evaluation Method according to claim 3, characterized in that, the software uses a reverse check Geomagic Qualify 12.0 software model data comparison.
5.根据权利要求4所述的定量评价方法,其特征在于,所述光学扫描采用非接触式白光扫描。 The quantitative evaluation method according to claim 4, wherein said non-contact optical scanning white light scanning.
6.根据权利要求5所述的定量评价方法,其特征在于,所述光学扫描采用分辨率130万像素、扫描范围100_X100_X75mm、采样点距0.3_。 6. Quantitative Evaluation Method according to claim 5, characterized in that the optical scanning with a resolution of 1300000 pixels, a scan range 100_X100_X75mm, sampling pitch 0.3_.
7.根据权利要求6所述的定量评价方法,其特征在于,所述光学扫描完成得到的数据格式为STL格式。 7. Quantitative Evaluation Method according to claim 6, characterized in that the optical scanning is performed to obtain the data format STL format.
8.根据权利要求4所述的定量评价方法,其特征在于,所述Geomagic Qualify 12.0软件在模型对比中进行拟合对齐、并在同一坐标位置下重合,对比误差的最大与最小临界值参数分别为+0.5mm和-0.5mm。 8. The quantitative evaluation method according to claim 4, wherein said Geomagic Qualify 12.0 are aligned in the model fitting software contrast, and superimposed in the same coordinate position, the maximum and minimum threshold error comparison parameters are and of + 0.5mm -0.5mm.
9.根据权利要求4所述的定量评价方法,其特征在于,所述Geomagic Qualify 12.0软件在模型对比中进行拟合对齐、并在同一坐标位置下重合,对比误差的最大与最小名义值参数分别为+0.1mm和-0.1_。 9. The quantitative evaluation method according to claim 4, wherein said Geomagic Qualify 12.0 are aligned in the model fitting software contrast, and superimposed in the same coordinate position, the nominal value of the maximum and minimum parameters, respectively comparison error and -0.1_ is + 0.1mm.
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