1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21430-2 SANS 3950:2008Edition 1 ISO 3950:1995Edition 2SOUTH AFRICAN NATIONAL STANDARD Dentistry Designation system for teeth and areas of
4、the oral cavity This national standard is the identical implementation of ISO 3950:1995 (corrected version) and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +
5、27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 3950:2008 Edition 1 ISO 3950:1995 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS SC 106B, Dental equipment and materials Dental materials, in accordanc
6、e with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in September 2008. G - International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATlON.ME,UYHAPOCIHAR OPrAHM3AUMH n0 CTAHAPTM3ALWORGANlSATlON INTERNATIONALE D
7、E NORMALISATION Dentistry - Designation system for teeth and areas of the oral cavity Art dentaire - Code de dhgnation des dents et des rhgions de la cavitk buccale Second edition - 1984-09-15 Corrected and reprinted -1995-07-15 UDC 616.314 : 681.3.04 Ref. No. IS0 3950-1984 (E) Descriptors : dentist
8、ry, dental system, teeth (anatomy), designation, numeric representations, numeric codes, abbreviations. 0 m - Price based on 2 pages SANS 3950:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .Foreword IS0 (the International Organization fo
9、r Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Every member body interested in a subject for which a technical committee has been established has th
10、e right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance a
11、s International Standards by the IS0 Council. They are approved in accordance with IS0 procedures requiring at least 75 % approval by the member bodies voting. International Standard IS0 3950 was prepared by Technical Committee lSO/TC 106, Dentistry, in collaboration with the following international
12、 organization : FDI (Inter- national Dental Federation). IS0 3950 was first published in 1977. This second edition cancels and replaces the first edition, of which it constitutes a technical revision. 0 International Organization for Standardization, 1984 Printed in Switzerland SANS 3950:2008This s
13、tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD IS0 3950-1984 (E) Dentistry - Designation system for teeth and areas of the oral cavity 0 Introduction 10 designates the upper right quadrant The increasing use of computers to s
14、tore information, together with the increasing necessity for the communication of dental information by wire, printed documents and orally, has re- quired that new basic elements be taken into consideration for drawing up a designation system for teeth. The system de- scribed in this International S
15、tandard has been drawn up by the International Dental Federation (FDI) and approved by the World Health Organization (WHO) and Technical Committee ISO/TC 106, Dentistry, to satisfy the following requirements: a) simple to understand and teach; b) easy to pronounce in conversation and dictation; c) r
16、eadily communicable in print and by wire; d) easy to translate into computer “input”; e) easily adaptable to standard charts used in general dental practice. 20 designates the upper left quadrant 30 designates the lower left quadrant 40 designates the lower right quadrant 03 designates the upper rig
17、ht sextant 04 designates the upper anterior sextant 05 designates the upper left sextant 06 designates the lower left sextant 07 designates the lower anterior sextant 08 designates the lower right sextant 09 signifies an area specified in an annexed document (or further explanation available). NOTE
18、- A sextant, in this context, means one of the sixths of the den- tal arches (03 to 08) such as illustrated in figure 1. 1 Scope and field of application .3 Designation of teeth This International Standard provides a system for designating teeth or areas of the oral cavity using two digits. It also
19、provides a system for designating surfaces of the teeth using letters of the alphabet. Teeth shall be designated by a two digit code. The first digit of the code indicates the quadrant and the second indicates the tooth in this quadrant. a) First digit (quadrant) Digits 1 to 4 are used for quadrants
20、 in the permanent den- tition and digits 5 to 8 for those of deciduous dentition, 2 Designation of areas of the oral cavity clockwise from the upper right side. The areas of the oral cavity shall be designated by a two digit code, where at least one of the two digits is zero, as follows: 00 designat
21、es the whole of the oral cavity b) Second digit (tooth) Teeth in the same quadrant are designated by the second digit 1 to 8 (1 to 5 in the deciduous dentition), this desig- nation is from the median line in a distal direction. 01 designates the maxillary area 02 designates the mandibular area The d
22、esignation system is shown in figure 1, with the codes for deciduous teeth in italics. 1 SANS 3950:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .IS0 3950-1984 E) 00 01 10 20 03 T 04 I 05 18 17 16 15 14 1 13 12 11 21 22 23 1 24 25 26 27
23、28 55 54 1 53 52 57 67 62 63 1 64 65 85 64 ) 83 82 87 77 72 73 1 74 75 48 47 46 45 44 1 43 42 41 31 32 33 ( 34 35 36 37 38 08 -L 07 I_ 06 40 30 02 Figure 1 - Digital designation of teeth and areas of the oral cavity 4 Abbreviations for designation of surfaces For the designation of surfaces, the fol
24、lowing letters shall be used : 0 designates an occlusal surface M designates a mesial surface D designates a distal surface V designates a vestibular surface (labial-buccal) L designates a lingual surface G designates a radicular surface NOTE - This list of abbreviations will be completed later. (09 : related document) I D Figure 2 - Designation of surfaces SANS 3950:2008 SABSThis s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .
