Which baby tooth is letter N?

Primary tooth N

Tooth N: Primary Lower Left Lateral Incisor

In the Universal Numbering System, primary tooth N is the primary lower left lateral incisor (primary mandibular left lateral incisor). Its FDI (ISO 3950) designation is 72 and its Palmer designation is B in the lower left quadrant. It is a incisor in the lower arch with typically 1 root.

Universal: N
FDI / ISO 3950: 72
Palmer: B
Type: Incisor
Arch & side: lower, left
Typical roots: 1

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Lower left · Primary

Primary Lower Left Lateral Incisor

Primary Mandibular Left Lateral Incisor

Universal: N
FDI / ISO: 72
Palmer: B

Type: Incisor
Arch & side: Lower (mandibular), left
Typical roots: 1 (varies between individuals)

Full conversion table

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Upper right

Universal	FDI	Palmer
E	51	A
D	52	B
C	53	C
B	54	D
A	55	E

Upper left

Universal	FDI	Palmer
F	61	A
G	62	B
H	63	C
I	64	D
J	65	E

Lower left

Universal	FDI	Palmer
O	71	A
N	72	B
M	73	C
L	74	D
K	75	E

Lower right

Universal	FDI	Palmer
P	81	A
Q	82	B
R	83	C
S	84	D
T	85	E