1、September 2014 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I
2、CS 11.060.25!%:I“2233888www.din.deDDIN EN ISO 9173-3Dentistry Extraction forceps Part 3: Design (ISO 9173-3:2014);English version EN ISO 9173-3:2014,English translation of DIN EN ISO 9173-3:2014-09Zahnheilkunde Extraktionszangen Teil 3: Design (ISO 9173-3:2014);Englische Fassung EN ISO 9173-3:2014,E
3、nglische bersetzung von DIN EN ISO 9173-3:2014-09Mdecine bucco-dentaire Daviers Partie 3: Conception (ISO 9173-3:2014);Version anglaise EN ISO 9173-3:2014,Traduction anglaise de DIN EN ISO 9173-3:2014-09www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be consi
4、dered authoritative.1408.14 DIN EN ISO 9173-3:2014-09 2 A comma is used as the decimal marker. National foreword This document (EN ISO 9173-3:2014) has been prepared by Technical Committee ISO/TC 106 “Dentistry” (Secretariat: SCC, Canada) in collaboration with Working Committee CEN/TC 55 “Dentistry”
5、 (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Dental (DIN Standards Committee Dentistry), Working Committee NA 014-00-23 AA Dentalmedizinische Instrumente. DIN EN ISO 9173 consists of the following parts, under the general title Dentist
6、ry Extraction forceps: Part 1: General requirements and test methods Part 2: Designation Part 3: Design The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 1942 DIN EN ISO 1942 ISO 9173-1 DIN EN ISO 9173-1 ISO 9173-2 DIN EN ISO 9173-2 Natio
7、nal Annex NA (informative) Bibliography DIN EN ISO 1942, Dentistry Vocabulary DIN EN ISO 9173-1, Dentistry Extraction forceps Part 1: General requirements and test methods DIN EN ISO 9173-2, Dentistry Extraction forceps Part 2: Designation EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 917
8、3-3 May 2014 ICS 11.060.20 English Version Dentistry - Extraction forceps - Part 3: Design (ISO 9173-3:2014) Mdecine bucco-dentaire - Daviers - Partie 3: Conception (ISO 9173-3:2014) Zahnheilkunde - Extraktionszangen - Teil 3: Design This European Standard was approved by CEN on 17 April 2014. CEN m
9、embers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applic
10、ation to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Mana
11、gement Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvi
12、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marni
13、x 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9173-3:2014 E(ISO 9173-3:2014) Contents DIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 2 Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms, d
14、efinitions and symbols .4 3.1 Terms and definitions .4 3.2 Symbols 4 4 Classification 6 4.1 General 6 4.2 Joint design 6 4.3 Handle shape 7 4.4 Beak shape .8 5 Handle types .8 5.1 General 8 5.2 Straight handle .8 5.3 Curved handle 9 6 Intended application 11 Bibliography 12 Foreword This document (E
15、N ISO 9173-3:2014) has been prepared by Technical Committee ISO/TC 106 “Dentistry” in collaboration with Technical Committee CEN/TC 55 “Dentistry” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical t
16、ext or by endorsement, at the latest by November 2014, and conflicting national standards shall be withdrawn at the latest by November 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held resp
17、onsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finl
18、and, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of I
19、SO 9173-3:2014 has been approved by CEN as EN ISO 9173-3:2014 without any modification. DIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 3 1 ScopeThis part of ISO 9173 specifies the design for extraction forceps used in dentistry.2 Normative referencesThe following documents, in whole or in part, ar
20、e normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1942, Dentistry VocabularyISO 9173-1, Dentistry Extr
21、action forceps Part 1: General requirements and test methodsISO 9173-2, Dentistry Extraction forceps Part 2: Designation3 Terms, definitions and symbolsFor the purposes of this document, the terms and definitions given in ISO 1942, ISO 9173-1, ISO 9173-2 and the following terms, definitions and symb
22、ols apply.3.1 Terms and definitions3.1.1beakfunctional working end of forceps which contacts the teeth3.1.2jointconnection point for first and second handles which are pivotally connected3.1.3handlepart which is held in the hand3.2 Symbolsb1beak thicknessb2crown space widthb3beak separationb4beak wi
23、dth (combined)h1beak offset 1h2beak offset 2DIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 4 l1overall forceps lengthl2overall beak lengthl3working length of beakThe dimensions are shown in Figure 1. The indication of measurement points with forceps closed is presented in Table 1.Figure 1 Extracti
24、on forceps dimensionsDIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 5 Table 1 Indication of measurement points with forceps closedSymbol Dimension Measurement pointb1Beak thickness At the beak gripb2Crown space width At maximum widthb3Beak separation At minimum gapb4Beak width (combined) At maximu
25、m distance across both beaksh1Beak offset 1 If h2= 0, from furthest point of beak tip to centreline of for-cepsIf h2 0, from furthest point of beak tip to furthest point of first bendh2Beak offset 2 From centreline of forceps to furthest point of first bendl1Overall forceps length From beak tip to e
26、nd of handlel2Overall beak length From beak tip to pivot centrel3Working length of beak From beak tip to outside of the joint4 Classification4.1 GeneralExtraction forceps are used together with dental elevators (see ISO 15087)1to extract teeth. Each extraction forceps is classified by a series of fe
27、atures that describe the beak, joint and handle shape.4.2 Joint designThe joints of extraction forceps are classified into the following types: circular joint (see Figure 2); lap joint (see Figure 3); box lock Type 1 (see Figure 4); box lock Type 2 (see Figure 5).Extraction forceps shall have joints
28、 allowing the extraction forceps to move freely.For circular joints the usage of a PTFE (poly tetra fluor ethylene) sheet is recommended.Figure 2 Circular jointDIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 6 Figure 3 Lap jointFigure 4 Box lock Type 1Figure 5 Box lock Type 24.3 Handle shapeThe han
29、dles of extraction forceps are classified into the following types: straight handle; curved handle; multiple curved handle.DIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 7 4.4 Beak shapeThe beaks of extraction forceps are classified according to their inner areas into the following types:a) coated
30、; non-coated,b) smooth; serrated.The beaks are designed to fit around the cervical portion of the tooth, i.e. around the curve of the tooths crown. Pointed beaks are designed to grip the furcation area.Universal forceps have a beak that can be used in any quadrant of the mouth.Extraction forceps des
31、igned for multi-rooted teeth have beaks with a point that is adapted to grip the tooth furcation.5 Handle types5.1 GeneralThe shape of the handle is left to the discretion of the manufacturer.The surface profile of the handle shall be designed according to the choice of the manufacturer. The knurled
32、 handle such as that shown in Figure 6 is given by way of example only. Other handle designs such as the one shown in Figure 8 (e.g. with indentations, anatomical) are also acceptable.The surface of the handle shall be easy to clean.The following handle designs are given as examples:a) a knurled han
33、dle allows the operator to have a better grip.b) a palm grasp is used with the handle of the extraction forceps.c) a curve on the end of the handle can be present for the little finger, to provide more stability and leverage.d) maxillary forceps have a handle which is often curved upwards, with the
34、beak in line with the handle.e) mandibular forceps have a straight handle with the beak at a 90 angle to the handle.5.2 Straight handle5.2.1 Straight handle Type 1See Figure 6.DIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 8 Figure 6 Straight handle Type 15.2.2 Straight handle Type 2See Figure 7.F
35、igure 7 Straight handle Type 25.3 Curved handle5.3.1 Curved handle Type 1See Figure 8.Figure 8 Curved handle Type 1DIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 9 5.3.2 Curved handle Type 2See Figure 9.NOTE This type of handle is also known as a Read pattern handle.Figure 9 Curved handle Type 25.
36、3.3 Curved handle Type 3See Figure 10.Figure 10 Curved handle Type 35.3.4 Curved handle Type 4See Figure 11.DIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 10 Figure 11 Curved handle Type 46 Intended applicationThe combination of the different designs for beak, joint and handle results in a specifi
37、c extraction forceps with an intended application. The manufacturer shall indicate the intended application of the extraction forceps in accordance with ISO 9173-2.The usage of extraction forceps is subdivided into application for adults and for children (smaller forceps). A further design specification is the intended application to specific areas of the oral region or teeth as given in ISO 9173-2.DIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 11 Bibliography1 ISO 15087 (all parts), Dental elevatorsDIN EN ISO 9173-3:2014-09 EN ISO 9173-3:2014 (E) 12
