ISO 22570-2020 pdf free download – Dentistry — Spoons and bone curettes.
This documentspecifies requirements and test methods for spoons and bone curettes used in dentistryfor oral surgical procedures.
lt specifies shapes and dimensions as well as information for marking.
2Normative references
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references, only the edition cited applies. Forundated references, the latest edition of the referenced document(including any amendments) applies.ISo 1101,Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form,orientation, location and run-out
ISO 1942, Dentistry – Vocabulary
ISO 2768-1,General tolerances — Part 1:Tolerances for linear and angular dimensions without individualtolerance indications
ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test methodISo 7153-1,Surgical instruments —Materials — Part 1: Metals
ISO 13504,Dentistry — General requirements for instruments and related accessories used in dentalimplant placement and treatment
ISO 15223-1:2016，Medical devices – Symbols to be used with medical device labels，labelling andinformation to be supplied — Part 1: General requirements
ISO 17664,Processing of health care products — Information to be provided by the medical devicemanufacturer for the processing of medical devices
ISO 21850-1, Dentistry — Materials for dental instruments — Part 1: Stainless steel
3Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1942,ISO 13504 and thefollowing apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
– ISo Online browsing platform: available at https://www.iso.org/obp
-IEC Electropedia: available at http:.//www.electropedia.org/
3.1 spoons and bone curettes
hand-guided dental instruments for removing pathologically changed hard and soft tissue in the areaof the jawbones
3.2 sharp spoon according to Hemingway
special instrument design of a sharp double-ended spoon having an oval shape of the working endwhere the spoons have a lateral inverse orientation of 180°
Note 1 to entry: Sharp spoons are used for revision of tooth alveoli and for smoothing of sharp bone parts afterextraction of tooth.
3.3 bone curette according to Lucas
special instrument design of a sharp double-ended bone curette having a pear-shaped working endwhere the working ends have a lateral inverse orientation of 180°
4Classification
Spoons and bone curettes are classified into the following types according to the width of theworking end:
– Type 1: small; S
– Type 2: medium; M
– Type 3: large; L
– Type 4: extra-large; XL
5 Requirements
5.1Dimensions
The maximum overall length of spoons and bone curettes shall be 173 mm.
The general design of spoons and bone curettes is left to the manufacturer unless a specific design isdescribed in this document.
Spoons and bone curette can consist of one part or also from three parts (two inserts and a handle).Spoons according to Hemingway shall have the dimensions given in Figure 1 and Table 1.The minimumdimension from the tip of the spoon to the first bend shall be 17 mm.
Bone curettes according to Lucas shall have the dimensions given in Figure 2 and Table 2.
Dimensions without tolerances shall be in accordance with IlSO 2768-1.Tolerances of form, orientationand location shall be in accordance with ISO 1101, if not specified otherwise in this document.
5.2 Materials
The material used for spoons and bone curettes is at the discretion of the manufacturer provided the requirements of this document are satisfied. If stainless steel is used, it shall be in accordance with ISO 7153-1 or ISO 21850-1.