YY/T 1011-2022Dentistry-Nominal diameters and designation code numbers for rotary instruments (English PDF)

Foreword

This 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 replaces YY/T 1011-2014 "Nominal Diameter and Designation of Dental Rotary Instruments", compared with YY/T 1011-2014 The technical differences are as follows.

--- Added the description of the scope of application (see Chapter 1);

--- Added normative references (see Chapter 2);

--- Added general references to GB/T 9937 terms (see Chapter 3);

--- Added terms and definitions (see Chapter 3).

This document uses the redrafting method to modify and adopt ISO 2157:2016 "Nominal diameter and designation of dental rotary instruments". this document The technical differences from ISO 2157:2016 and the reasons are as follows.

Regarding the normative reference documents, this document has made adjustments with technical differences to adapt to the technical conditions of our country.

Centrally reflected in Chapter 2 "Normative References", the specific adjustments are as follows.

--- Replace ISO 3 with GB/T 321 which is equivalent to adopting international standards;

--- Replace ISO 1942 with GB/T 9937 which is modified to adopt international standards;

--- Replacing ISO 3630-1 with YY/T 0803.1 which has been modified to adopt international standards.

Introduction

This document is one of several basic standards for dental rotary instruments and describes a range of nominal diameters for the working parts of dental rotary instruments.

The designations corresponding to these diameters are also listed. These designators list these diameters as 3-digit numbers, in tenths of a millimeter Indicates that these 3-digit numbers are also used as part of the YY/T 0873 (all parts) digital encoding. Nominal diameter and designation of dental rotary instruments

1 Scope

This document specifies the nominal diameters of the working parts of dental rotary instruments and the corresponding designations.

This document applies to the selection of nominal diameters and designations of dental rotary instruments.

Nominal diameters of endodontic instruments and scaler tips are not specified in this document.

2 Normative references

The 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.

GB/T 321 Priority Numbers and Priority Number Coefficients (GB/T 321-2005, ISO 3:1973, IDT)

GB/T 9937 Dental Terminology (GB/T 9937-2020, ISO 1942:2009, MOD) 2019, MOD)

3 Terms and Definitions

The terms and definitions defined in GB/T 9937, YY/T 0803.1 and the following apply to this document.