Which baby tooth is letter T?

Primary tooth T

Tooth T: Primary Lower Right Second Molar

In the Universal Numbering System, primary tooth T is the primary lower right second molar (primary mandibular right second molar). Its FDI (ISO 3950) designation is 85 and its Palmer designation is E in the lower right quadrant. It is a molar in the lower arch with typically 2 roots.

Universal: T
FDI / ISO 3950: 85
Palmer: E
Type: Molar
Arch & side: lower, right
Typical roots: 2

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Lower right · Primary

Primary Lower Right Second Molar

Primary Mandibular Right Second Molar

Universal: T
FDI / ISO: 85
Palmer: E

Type: Molar
Arch & side: Lower (mandibular), right
Typical roots: 2 (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