BS EN ISO 20896-1:2019

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Dentistry. Digital impression devices – Methods for assessing accuracy

Published By	Publication Date	Number of Pages
BSI	2019	24

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Categories: 11.060.01 - Dentistry in general, BSI

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This document specifies test methods and procedures for assessing the accuracy of a three dimensional numerical description of intra-oral surfaces acquired directly from a patient with a hand-held scanning device. The test methods are not applicable to ultrasonic, radiographic or magnetic resonance imaging methods.

NOTE

ISOÂ 12836 specifies the test methods for the assessment of accuracy of digitizing devices that use a fixed or a mechanically guided scanning device.

PDF Catalog

PDF Pages	PDF Title
2	National foreword
4	European foreword
6	Foreword
7	Introduction
9	1 Scope 2 Normative references 3 Terms and definitions
11	4 Requirements 4.1 General 4.2 Reference measurement of test objects
12	5 Test Methods 5.1 Test objects 5.1.1 General 5.1.2 Preparation 5.1.3 Measurement of reference values
13	5.2 Test conditions 5.2.1 Ambient conditions 5.2.2 Scanning pattern 5.2.3 Scanning time 5.2.4 Number of scans 5.3 Processing of the digital impression 5.3.1 General 5.3.2 Dimensions of interest 5.3.3 Determination of dimensions
14	5.4 Assessment of accuracy 5.4.1 Statistical analysis 5.4.2 Expression of bias 5.4.3 Expression of accuracy 6 Test Report 6.1 General
15	6.2 Device 6.3 Test object 6.4 Test method
16	6.5 Test results
17	Annex A (normative) Test object — Crown preparation
19	Annex B (normative) Test object — Inlay preparation
21	Annex C (normative) Test object — Full arch
23	Bibliography