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Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 41230-2022: Dentistry - Digitizing devices for CAD/CAM systems for indirect dental restorations - Test methods for assessing accuracy Status: Valid
Basic dataStandard ID: GB/T 41230-2022 (GB/T41230-2022)Description (Translated English): Dentistry - Digitizing devices for CAD/CAM systems for indirect dental restorations - Test methods for assessing accuracy Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: C33 Word Count Estimation: 18,121 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 41230-2022: Dentistry - Digitizing devices for CAD/CAM systems for indirect dental restorations - Test methods for assessing accuracy---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Dentistry - Digitizing devices for CAD/CAM systems for indirect dental restorations - Test methods for assessing accuracy ICS 11.060.01 CCSC33 National Standards of People's Republic of China Dental indirect dental restoration CAD/CAM system Test method for accuracy evaluation of digital equipment (ISO 12836.2015, IDT) Published on 2022-03-09 2023-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 requirements 4 4.1 General 4 4.2 Accuracy4 5 Test method 4 5.1 General 4 5.2 Test conditions 4 5.3 Accuracy 4 6 Test report 5 Appendix A (Normative) Inlay Cavity Model 6 Appendix B (normative) crown and bridge preparation model 10 Appendix C (normative) Sphere 14 forewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is equivalent to ISO 12836.2015 "Dental Indirect Dental Restoration CAD/CAM System Digital Equipment Accuracy Test Methods for Degree Evaluation". Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the State Drug Administration. This document is under the jurisdiction of the National Standardization Technical Committee for Dental Materials and Devices (SAC/TC99). This document was drafted by. Oral Medical Device Inspection Center, Peking University School of Stomatology, Liaoning Aierchuang Biomaterials Co., Ltd., Dentsply Sirona Dental Products (Shanghai) Co., Ltd. The main drafters of this document. Bai Wei, Lin Hong, Chen Xin, Wang Yan.IntroductionThe use of computer-aided design/computer-aided manufacturing (CAD/CAM) systems is increasing around the world. This document specifies three experimental evaluation methods for the accuracy of CAD/CAM system dental digitization equipment. The premise of this document is based on the fact that only matching point clouds and resulting shape surfaces conform to the Stereolithography Interface Specification (also known as Stereolithography). Lithography Interface Language or STL) is only considered a scan of the physical model. This document includes dental scanners (lab-based optical scanners as well as lab-based mechanical contact scanners) Measurement of digitized images. Digital images can be used not only for the production of dental restoration products, but also for teaching in the field of dentistry and research, such as in odontology, measurement of changes in tooth and gingival shape, etc. It has been argued that more physical models are needed than spheres, such as a shape with an inlay cavity, sharp edges, capable of moulding The face of the prepared edge of the inlay. When no method (e.g. software algorithm) can be used to calculate the points of the point cloud or the STL surface with the accuracy as When measuring the standard deviation of the difference between the physical model surfaces, this requires some software that can match the CADSTL format file of the physical model. However, these physical models have differences in point clouds or STL surfaces and visualizations, so qualitative evaluations are also required. Appendix A, Appendix B, and Appendix C specify the following three test specimens (two dental, one mechanic) for evaluating digital equipment. a) Specimen used to simulate the shape of the inlay cavity; b) Multi-component specimens, including two post and core, can cover two full crowns with a center distance of 30mm, to simulate the digital four single bit pons; c) a sphere whose measurements are limited to the hemisphere located above the horizontal plane. ISO 5725-1 uses the terms "correctness" and "precision" to describe the accuracy of a measurement method. "Correctness" is used for Refers to "the degree of agreement between the mean obtained from a large number of test results and the accepted reference value". "Precision" is used to mean "under specified conditions The degree of agreement between independent test results". Usually "accuracy" includes correctness and precision. Dental indirect dental restoration CAD/CAM system Test method for accuracy evaluation of digital equipment1 ScopeThis document describes the digital design of a computer-aided design/computer-aided manufacturing (CAD/CAM) system for indirect dental restorations Test methods for accuracy assessment. This document applies to digitizing equipment with optical or mechanical contact systems, not for hand-held scanners, nor for Methods (X-rays) and devices for digitization by means of Magnetic Resonance Imaging (MRI).2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. ting-Specifications) ISO 1942 Dentistry-Vocabulary Note. GB/T 9937-2020 Dental terminology (ISO 1942.2009, MOD) ISO 3290-2 Rolling bearing balls Part 2.Ceramic balls (Rolingbearings-Bals-Part 2.Ceramicbals) Note. GB/T 308.2-2010 Rolling Bearing Balls Part 2.Ceramic Balls (ISO 3290-2.2008, IDT) ISO 5725-1 Accuracy (correctness and precision) of measurement methods and results - Part 1.General and definitions [Accuracy tions] Note. GB/T 6379.1-2004 Accuracy (correctness and precision) of measurement methods and results - Part 1.General provisions and definitions (ISO 5725-1.1994, IDT) ISO /IEC Guide 99 International Metrology Vocabulary Fundamentals and Common Concepts and Related Terms (VIM) [International3 Terms and DefinitionsTerms and definitions as defined in ISO 1942, ISO 5725-1 and ISO /IEC Guide 99 and the following apply to this document. 3.1 accuracy < Measurement> The degree of agreement between the test result and the true value being measured. Note. Accuracy is a qualitative concept. See 3.8 "Precision" and 3.17 "Correctness" for quantification of its two components. [Source. ISO 5725-1.1994, 3.6, with modifications] 3.2 calibration Under specified conditions, a series of operations are used to determine the indication value of a measuring instrument or measuring system, which can also be represented by a measuring instrument or a reference material. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 41230-2022_English be delivered?Answer: Upon your order, we will start to translate GB/T 41230-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 41230-2022_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 41230-2022_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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