ISO 1797:2017 歯科 — 回転式および振動式器具用のシャンク | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 106, Dentistry, Subcommittee SC 4, Dental instruments.

This third edition cancels and replaces ISO 1797-1, ISO 1797-2, and ISO 1797-3, which have been technically revised with the following changes:

• a) combination of three material parts into one International Standard;
• b) reprocessing requirements for plastic shanks have been added;
• c) AQL-values have been deleted;
• d) quality control concept was moved to Annex A.

1 Scope

This document specifies the requirements for dimensions and material properties of shanks used in dentistry for rotary or oscillating instruments. It describes the measurement methods for the verification of the requirements.

This document is not applicable to tips fixed to the handpiece with a screw, e.g. scaler tips.

Information about the location of marking is also given. Annex A on quality control is included in order to ensure a high quality level.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms, definitions and symbols

3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 1942, ISO 14457 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

3.1.2

instrument

tool used for rotary or oscillating movements, consisting of working part, neck (if applicable) and shank (3.1.5) , which is constructed to fit into a handpiece (3.1.1)

Note 1 to entry: This includes continuous rotation or oscillating instruments (3.1.3) .

Note 2 to entry: See Figure 1.

Figure 1—Designation of instrument parts

Key

1	working part
2	neck
3	shank

3.2 Symbols

Bibliography