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1、G - International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATlON.ME,UYHAPOCIHAR OPrAHM3AUMH n0 CTAHAPTM3ALWORGANlSATlON INTERNATIONALE DE NORMALISATION Dentistry - Designation system for teeth and areas of the oral cavity Art dentaire - Code de dhgnation des dents et des rhgions de la cavit
2、k 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 : dentistry, dental system, teeth (anatomy), designation, numeric representations, numeric codes, abbreviations. 0 m - Price based on 2 pages Copyright Internationa
3、l Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 19:48:59 MDTNo reproduction or networking permitted without license from IHS -,-,- Foreword IS0 (the International Organization for Standardization) is
4、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 the right to be represen
5、ted 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 as International Standa
6、rds 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 organization : FDI (I
7、nter- 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 Copyright International Organization for St
8、andardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 19:48:59 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 3950-1984 (E) Dentistry - Designation system for teeth and area
9、s of the oral cavity 0 Introduction 10 designates the upper right quadrant The increasing use of computers to store 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 i
10、nto consideration for drawing up a designation system for teeth. The system de- scribed in this International Standard 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 foll
11、owing requirements: a) simple to understand and teach; b) easy to pronounce in conversation and dictation; c) readily 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 qu
12、adrant 30 designates the lower left quadrant 40 designates the lower right quadrant 03 designates the upper right 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 lowe
13、r right sextant 09 signifies an area specified in an annexed document (or further explanation available). NOTE - 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 Intern
14、ational Standard provides a system for designating teeth or areas of the oral cavity using two digits. It also 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
15、the second indicates the tooth in this quadrant. a) First digit (quadrant) Digits 1 to 4 are used for quadrants 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
16、 shall be designated by a two digit code, where at least one of the two digits is zero, as follows: 00 designates 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
17、the median line in a distal direction. 01 designates the maxillary area 02 designates the mandibular area The designation system is shown in figure 1, with the codes for deciduous teeth in italics. 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Lice
18、nsee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 19:48:59 MDTNo reproduction or networking permitted without license from IHS -,-,- 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 28 55 54 1 53 52 57 67 62 63 1 64 65 85 64 ) 83 82 87 77
19、 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 following letters shall be used : 0 designates an occlusal
20、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 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 19:48:59 MDTNo reproduction or networking permitted without license from IHS -,-,-