Anatomic numbering system Flashcards
What is used to identify the tooth type?
The first letter of the tooth
What is used to indicate the side of the mouth where the tooth is located?
A number representing the tooth is written on the left or right side of the letter
What lowercase letter is used to reference the primary incisor?
“i”
Incisor closest to the center of the mouth =
Incisor 1
The intermediate incisor =
Incisor 2
The lateral incisor =
Incisor 3
Central right maxillary incisor =
I^1
Central left mandibular incisor =
1 (subscript) I
Primary canine tooth =
lowercase “c”
Why is only the number 1 used to identify canine teeth?
Because only one canine tooth is present in each quadrants
The left mandibular canine tooth =
1 (subscript) C
The right maxillary canine tooth =
Canine ^1
Primary premolars =
lowercase “p”
How are premolars numbered?
Sequentially beginning with 1 & moving back in the mouth
How is the numbering of premolars different in cats and dogs?
Cats do not have a first premolar in the maxilla or a first or second premolar in the mandible
Where does premolar numbering start in a cat?
With 2 in the maxilla and 3 in the mandible
The left maxillary 4th premolar =
4^P
The right mandibular 4th premolar =
P (subscript) 4
Do primary molars exist?
No
What indicates the first molar?
The number 1
What are successive molars indicated by if present?
2 and 3
The right maxillary first molar =
M^1
The left mandibular first molar =
(subscript) 1M
Cats do not have what premolars?
1^P P^1 1P 2P P1 P2
What is the advantage of the anatomic numbering system?
Easy to remember
What is the disadvantage of the anatomic numbering system?
More time consuming than the Triadan system
