AN INTRODUCTION TO THE VARIOUS TOOTH NUMBERING SYSTEMS.

1. TOOTH MORPHOLOGY THEORY
DR.VIGNESH R,BDS

2. TYPES OF DENTITION
• PRIMARY DENTITION / DECIDUOUS
DENTITION / MILK TEETH
• PERMANENT DENTITION /
SUCCEDANEOUS DENTITION
• MIXED DENTITION

3. TYPES OF DENTITION
• PRIMARY DENTITION 6 MONTHS – 6
YEARS OF AGE
• MIXED DENTITION  6 YEARS – 12
YEARS OF AGE
• PERMANENT DENTITION  AFTER
12 YEARS OF AGE.

4. DECIDUOUS DENTITION
CENTRAL INCISORS – 2 + 2
LATERAL INCISORS – 2 + 2
CANINES – 2 + 2
FIRST MOLAR – 2 + 2
SECOND MOLAR – 2 + 2
TOTAL = 20 TEETH (UPPER + LOWER)

5. DECIDUOUS DENTITION
•

6. DECIDUOUS DENTITION
•

7. PERMANENT DENTITION
CENTRAL INCISORS – 2 + 2
LATERAL INCISORS – 2 + 2
CANINES – 2 + 2
FIRST PREMOLARS – 2 + 2
SECOND PREMOLARS – 2 + 2
FIRST MOLARS – 2 + 2
SECOND MOLARS – 2 + 2
THIRD MOLARS – 2 + 2
TOTAL = 32 TEETH (UPPER + LOWER)

8. PERMANENT DENTITION
•

9. REVISION –

10. TOOTH NUMBERING SYSTEMS
TOOTH NOMENCLATURE
(NAMING)

11. NEED FOR NUMBERING &
NAMING SYSTEMS ???
FOR A UNIFORM PATTERN ALL
THORUGH THE WORLD
A PATIENT’S TOOTH DATA SHALL
BE READABLE & UNDERSTOOD
ROUND THE WORLD
FOR EASY IDENTIFICATION OF
TEETH
TO MAKE RECORDING OF DATA ON
THE CASE SHEETS EASY

12. GENEAL RULES IN NUMBERING
& NAMING THE TEETH
THE ORAL CAVITY IS DIVIDED INTO
4 QUADRANTS BY DRAWING
2 LINES THROUGH THE MIDPOINTS –
HORIZONTALLY & VERTICALLY.

13. GENEAL RULES IN NUMBERING
& NAMING THE TEETH
•

14. GENEAL RULES IN NUMBERING
& NAMING THE TEETH
THERE WILL BE 2 MAXILLARY & 2
MANDIBULAR QUADRANTS
THE QUADRANTS ARE NUMBERED 1, 2, 3 &
4 , STARTING FROM THE MAXILLARY
RIGHT QUADRANT.
EACH QUADRANT WILL HAVE EQUAL
NUMBER OF TEETH (5 IN DECIDUOUS & 8
IN PERMANENT)

15. GENEAL RULES IN NUMBERING
& NAMING THE TEETH
YOUR RIGHT IS PATIENT’S LEFT
YOUR LEFT IS PATIENT’S RIGHT.
THE PATIEN’S MAXILLARY RIGHT
QUADRANT IS 1.
THE PATIENT’S MAXILLARY LEFT
QUADRANT IS 2
THE PATIENT’S MANDIBULAR LEFT
QUADRANT IS 3
THE PATIENT’S MANDIBULAR RIGHT
QUADRANT IS 4.

16. GENEAL RULES IN NUMBERING
& NAMING THE TEETH

17. GENEAL RULES IN NUMBERING
& NAMING THE TEETH
THUS, START FROM PATIENT’S
RIGHT MAXILLARY QUADRANT – 1
MOVE IN A CLOCKWISE
DIRECTION TO THE OTHER
QUADRANTS
THE LAST QUADRANT WILL BE
PATIENT’S MANDIBULAR RIGHT –
4.

18. NAMING THE TOOTH
• THE TOOTH NAME SHOULD
CONTAIN THE FOLLOWING
COMPONENTS:
PERMANENT / DECIDUOUS
MAXILLARY / MANDIBULAR
RIGHT / LEFT
NAME OF THE TOOTH
EG: PERMANENT MAXILLARY RIGHT FIRST
MOLAR.

19. THE DIFFERENT NUMBERING
SYSTEMS
THE UNIVERSAL SYSTEM
THE ZIGMONDY-PALMER
NOTATION
FDI SYSTEM

20. THE UNIVERSAL SYSTEM
PERMANENT TEETH
➢MAXILLARY TEETH NUMBERED
FROM 1 TO 16
➢NUMBERING BEGINS FROM
MAXILLARY RIGHT THIRD MOLAR
➢MANDIBULAR TEETH NUMBERED
FROM 17 TO 32
➢NUMBERING BEGINS FROM
MANDIBULAR LEFT THIRD MOLAR

21. THE UNIVERSAL SYSTEM
PERMANENT TEETH
Quadrant 1 Quadrant 2
MAXILLARY RIGHT MAXILLARY LEFT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
•
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
MANDIBULAR RIGHT MANDIBULAR LEFT
Quadrant 4 Quadrant 3

22. THE ZIGMONDY-PALMER
NOTATION – PERMANENT TEETH
❖THE TEETH IN EACH QUADRANT
ARE DESIGNATED 1 TO 8.
❖NO OTHER NUMBER IS USED
❖1 IS STARTED FROM THE MIDLINE
(CENTRAL INCISOR)
❖8 STANDS FOR THE THIRD MOLARS

23. THE ZIGMONDY-PALMER
NOTATION– PERMANENT TEETH
Quadrant 1 Quadrant 2
MAXILLARY RIGHT MAXILLARY LEFT
8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8
•
8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8
MANDIBULAR RIGHT MANDIBULAR LEFT
Quadrant 4 Quadrant 3

24. FEDERATION DENTAIRE
INTERNATIONALE (FDI) SYSTEM –
PERMANENT TEETH
• VERY RECENT SYSTEM
• 2-DIGIT SYSTEM
• FIRST DIGIT  QUADRANT NUMBER (1,
2, 3 OR 4)
• SECOND DIGIT  TOOTH NUMBER ( 1-
8) IN THAT QUADRANT.
• THE TWO DIGITS HAVE TO BE READ
SEPARATELY WHILE NAMING THE
TOOTH. (11 HAS TO BE READ AS ONE –
ONE & NOT AS ELEVEN)

25. FEDERATION DENTAIRE
INTERNATIONALE (FDI) SYSTEM –
PERMANENT TEETH
Quadrant 1 Quadrant 2
MAXILLARY RIGHT MAXILLARY LEFT
18 17 16 1 5 14 13 1 2 11 21 22 23 24 25 26 27 2 8
•
48 47 46 45 44 43 42 41 31 32 3 3 3 4 3 5 36 37 38
MANDIBULAR RIGHT MANDIBULAR LEFT
Quadrant 4 Quadrant 3

26. ASSIGNMENT
1. Write the notations for DECIDUOUS
TEETH in each of the 3 Numbering
Systems
2. Write brief notes on other Numbering
systems
(REFER WHEELER’S TEXT BOOK)

27. THANK YOU