Which baby tooth is letter R?

Primary tooth R

Tooth R: Primary Lower Right Canine

In the Universal Numbering System, primary tooth R is the primary lower right canine (primary mandibular right canine). Its FDI (ISO 3950) designation is 83 and its Palmer designation is C in the lower right quadrant. It is a canine in the lower arch with typically 1 root.

Universal: R
FDI / ISO 3950: 83
Palmer: C
Type: Canine
Arch & side: lower, right
Typical roots: 1

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Lower right · Primary

Primary Lower Right Canine

Primary Mandibular Right Canine

Universal: R
FDI / ISO: 83
Palmer: C

Type: Canine
Arch & side: Lower (mandibular), right
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