Numbering System in Dentistry PDF

NUMBERING SYSTEM Moamer Gabsa- Alneelain university Moamer Gabsa BDS,diploma of research method  OBJECTIVE By the end of this lecture you can be able to : Know the nomenclature of tooth...

NUMBERING SYSTEM Moamer Gabsa- Alneelain university Moamer Gabsa BDS,diploma of research method  OBJECTIVE By the end of this lecture you can be able to : Know the nomenclature of tooth Identify the common types of tooth numbering system. Know why we used this numbering system Moamer Gabsa- Alneelain university  DENTAL NOMENCLATURE By words Set: Deciduous or permanent Jaw: Maxillary or mandibular Side: Right or left Order within a class Central or lateral First/second/third Class: Incisor/canine/premolar/molar Example : permanent mandibular right central incisor Moamer Gabsa- Alneelain university  permanent maxillary right central incisor 1 Moamer Gabsa- Alneelain university Of the many systems, the three most commonly used will be described. A.Palmer Notation Method B.Universal Numbering System C.FDI System Moamer Gabsa- Alneelain university  Numbering systems in dentistry serve as abbreviations. Instead of writing out the entire name of a tooth, such as permanent maxillary right central incisor, it is much simpler to assign it a : Number letter symbol Moamer Gabsa- Alneelain university Moamer Gabsa- Alneelain university  PALMER NOTATION METHOD Moamer Gabsa- Alneelain university  Palmer/Zsigmondy notation system Approved by American Dental Association in 1947 Tooth is represented by a number 1 – 8 (permanent) or a letter A – E (deciduous) Two lines; indicates which quadrant the tooth belongs to a horizontal representing the occlusal plane a vertical representing the midline Examples: Permeant Maxillary right central incisor 1 Deciduous Mandibular left second molar E Moamer Gabsa- Alneelain university  Permanent Deciduous EDCBA ABCDE 87654321 12345678 EDCBA ABCDE 87654321 12345678 Moamer Gabsa- Alneelain university  Permanent Tooth Code Deciduous Central incisor 1 Tooth Code Lateral incisor 2 Central incisor A Canine 3 Lateral incisor B First premolar 4 Canine C Second premolar 5 First molar D First molar 6 Second molar E Second molar 7 Third molar 8 Moamer Gabsa- Alneelain university  Maxillary Right Maxillary Right Left Maxillary Left Mandibula Mandibular Left r Mandibular Right Moamer Gabsa- Alneelain university Moamer Gabsa- Alneelain university  UNIVERSAL NUMBERING SYSTEM Moamer Gabsa- Alneelain university  Palmer – difficulty in keyboard typing ADA adopted the universal system in 1968 Moamer Gabsa- Alneelain university  Letters for deciduous teeth Consecutive from A to T Following a clockwise order from maxillary right second molar to mandibular right second molar ABCDE FGHI J TSRQP ONMLK Moamer Gabsa- Alneelain university  Numbers for permanent teeth Consecutive from 1 to 32 Following a clockwise order from maxillary right third molar to mandibular right third molar 1 2 3 4 5 6 7 9 10 11 12 13 14 15 8 16 32 31 30 29 28 27 26 24 23 22 21 20 19 18 25 17 Moamer Gabsa- Alneelain university Right maxillary Left maxillary Left mandibular Right mandibular Tooth Code Tooth Code Tooth Code Tooth Code Third molar 1 Central incisor 9 Third molar 17 Central incisor 25 Second molar 2 Lateral incisor 10 Second molar 18 Lateral incisor 26 First molar 3 Canine 11 First molar 19 Canine 27 Second 4 First premolar 12 Second 20 First premolar 28 premolar premolar Second 13 Second 29 First premolar 5 premolar First premolar 21 premolar Canine 6 First molar 14 Canine 22 First molar 30 Lateral incisor 7 Second molar 15 Lateral incisor 23 Second molar 31 Central incisor 8 Third molar 16 Central incisor 24 Third molar 32 Moamer Gabsa- Alneelain university Right maxillary Left maxillary Left mandibular Right mandibular Tooth Code Tooth Code Tooth Code Tooth Code Second molar A Central incisor F Second molar K Central incisor P First molar B Lateral incisor G First molar L Lateral incisor Q Canine C Canine H Canine M Canine R Lateral incisor D First molar I Lateral incisor N First molar S Central incisor E Second molar J Central incisor O Second molar T Moamer Gabsa- Alneelain university Moamer Gabsa- Alneelain university  FDI NUMBERING SYSTEM Moamer Gabsa- Alneelain university  Proposed by FDI & adopted by WHO Each tooth is allocated a two-digit number; the left designates the quadrant and the right designates the tooth order Examples Mandibular right permanent canine 43 Maxillary left deciduous lateral incisor 62 Moamer Gabsa- Alneelain university  Quadrant Code Right maxillary 1 Left maxillary 2 Left mandibular 3 Right mandibular 4 Deciduous Quadrant Code Right maxillary 5 Left maxillary 6 Left mandibular 7 Permanent RightMoamer mandibular 8 Gabsa- Alneelain university  Permanent Tooth Code Deciduous Central incisor 1 Tooth Code Lateral incisor 2 Central incisor 1 Canine 3 Lateral incisor 2 First premolar 4 Canine 3 Second premolar 5 First molar 4 First molar 6 Second molar 5 Second molar 7 Third molar 8 Moamer Gabsa- Alneelain university  FDI NUMBERING SYSTEM (TWO DIGIT SYSTEM) 55 54 53 52 61 62 63 64 51 65 85 84 83 82 71 72 73 74 81 75 Deciduous 18 17 16 15 14 13 12 21 22 23 24 25 26 27 11 28 48 47 46 45 44 43 42 31 32 33 34 35 36 37 41 38 Permanent Moamer Gabsa- Alneelain university  Right maxillary Left maxillary Left mandibular Right mandibular Tooth Code Tooth Code Tooth Code Tooth Code Central incisor 11 Central incisor 21 Central incisor 31 Central incisor 41 Lateral incisor 12 Lateral incisor 22 Lateral incisor 32 Lateral incisor 42 Canine 13 Canine 23 Canine 33 Canine 43 First premolar 14 First premolar 24 First premolar 34 First premolar 44 Second 15 Second 25 Second 35 Second 45 premolar premolar premolar premolar First molar 16 First molar 26 First molar 36 First molar 46 Second molar 17 Second molar 27 Second molar 37 Second molar 47 Third molar 18 Third molar 28 Third molar 38 Third molar 48 Moamer Gabsa- Alneelain university Right maxillary Left maxillary Left mandibular Right mandibular Tooth Code Tooth Code Tooth Code Tooth Code Central incisor 51 Central incisor 61 Central incisor 71 Central incisor 81 Lateral incisor 52 Lateral incisor 62 Lateral incisor 72 Lateral incisor 82 Canine 53 Canine 63 Canine 73 Canine 83 First molar 54 First molar 64 First molar 74 First molar 84 Second molar 55 Second molar 65 Second molar 75 Second molar 85 Moamer Gabsa- Alneelain university  Some times we used the hash (#) before the two digit (FDI system) to differentiate between universal codes and FDI codes #22 = permanent maxillary left lateral incisor 22 = permanent mandibular left canine 18 17 16 15 14 13 12 21 22 23 24 25 26 27 1 2 3 4 5 6 7 9 10 11 12 13 14 15 11 28 8 16 48 47 46 45 44 43 42 31 32 33 34 35 36 37 32 31 30 29 28 27 26 24 23 22 21 20 19 18 41 38 25 17 FDI system Universal system Moamer Gabsa- Alneelain university  ANY QUESTION ? Moamer Gabsa- Alneelain university Summa ry Moamer Gabsa- Alneelain university REFERENCES Bunn S (19 May 2006). "Tooth Numbering". Retrieved 2010-04-21 WHEELER’S DENTAL ANATOMY, PHYSIOLOGY, ISBN: 978-1-4160-6209-7 Moamer Gabsa- Alneelain university Moamer Gabsa- Alneelain university