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Free Interactive Tool

Tooth Chart With Numbers and Names

Tap any tooth to see its name, its number in the Universal, FDI, and Palmer systems, and when it usually comes in. Switch to baby teeth, mark missing teeth, or print the chart.

IncisorsCaninesPremolarsMolarsMarked missing

Shown as if you are facing the person: their right side is on your left.

Select a tooth

Tap or click any tooth on the chart to see its details.

Eruption and shedding ages are typical ranges from the American Dental Association. Every child is different. This chart is for education and is not a diagnosis.

How the Universal Tooth Numbering System Works

The Universal Numbering System is the standard in the United States and the one your dentist most likely uses. Each of the 32 adult teeth gets a number from 1 to 32:

  • #1 to #16: upper teeth, from the upper right wisdom tooth (#1) across to the upper left wisdom tooth (#16). The two upper front teeth are #8 and #9.
  • #17 to #32: lower teeth, from the lower left wisdom tooth (#17) across to the lower right wisdom tooth (#32). The two lower front teeth are #24 and #25.

Baby teeth use letters instead: A to J for the upper teeth and K to T for the lower teeth, in the same clockwise order.

FDI and Palmer Tooth Numbering

FDI (ISO 3950) is used in most countries outside the US. Each tooth has two digits: the first is the quadrant and the second is the tooth's position counting back from the front tooth. Adult quadrants are 1 (upper right), 2 (upper left), 3 (lower left), and 4 (lower right), so the upper right front tooth is 11 and the lower right wisdom tooth is 48. Baby teeth use quadrants 5 to 8.

Palmer notation, still common in orthodontics and in the UK, names the quadrant and numbers each tooth 1 to 8 from the midline (A to E for baby teeth). On this page we write it as UR, UL, LL, or LR plus the number, for example UR6 for the upper right first molar.

The Four Types of Teeth

  • Incisors (8): thin front teeth for biting into food.
  • Canines (4): pointed teeth at the corners of the mouth for tearing.
  • Premolars (8): two-cusped teeth for crushing and chewing. Baby teeth have no premolars.
  • Molars (12, including 4 wisdom teeth): wide back teeth that do most of the grinding.

Adult Tooth Number Chart (All 32 Teeth)

UniversalFDIPalmerLocationToothUsually erupts
118UR8Upper rightThird molar (wisdom tooth)17-21 yrs
217UR7Upper rightSecond molar12-13 yrs
316UR6Upper rightFirst molar6-7 yrs
415UR5Upper rightSecond premolar (bicuspid)10-12 yrs
514UR4Upper rightFirst premolar (bicuspid)10-11 yrs
613UR3Upper rightCanine (cuspid)11-12 yrs
712UR2Upper rightLateral incisor8-9 yrs
811UR1Upper rightCentral incisor7-8 yrs
921UL1Upper leftCentral incisor7-8 yrs
1022UL2Upper leftLateral incisor8-9 yrs
1123UL3Upper leftCanine (cuspid)11-12 yrs
1224UL4Upper leftFirst premolar (bicuspid)10-11 yrs
1325UL5Upper leftSecond premolar (bicuspid)10-12 yrs
1426UL6Upper leftFirst molar6-7 yrs
1527UL7Upper leftSecond molar12-13 yrs
1628UL8Upper leftThird molar (wisdom tooth)17-21 yrs
1738LL8Lower leftThird molar (wisdom tooth)17-21 yrs
1837LL7Lower leftSecond molar11-13 yrs
1936LL6Lower leftFirst molar6-7 yrs
2035LL5Lower leftSecond premolar (bicuspid)11-12 yrs
2134LL4Lower leftFirst premolar (bicuspid)10-12 yrs
2233LL3Lower leftCanine (cuspid)9-10 yrs
2332LL2Lower leftLateral incisor7-8 yrs
2431LL1Lower leftCentral incisor6-7 yrs
2541LR1Lower rightCentral incisor6-7 yrs
2642LR2Lower rightLateral incisor7-8 yrs
2743LR3Lower rightCanine (cuspid)9-10 yrs
2844LR4Lower rightFirst premolar (bicuspid)10-12 yrs
2945LR5Lower rightSecond premolar (bicuspid)11-12 yrs
3046LR6Lower rightFirst molar6-7 yrs
3147LR7Lower rightSecond molar11-13 yrs
3248LR8Lower rightThird molar (wisdom tooth)17-21 yrs

Eruption ages: American Dental Association.

Baby Teeth Chart (All 20 Primary Teeth)

UniversalFDIPalmerLocationToothEruptsFalls out
A55UREUpper rightSecond molar25-33 mos10-12 yrs
B54URDUpper rightFirst molar13-19 mos9-11 yrs
C53URCUpper rightCanine (cuspid)16-22 mos10-12 yrs
D52URBUpper rightLateral incisor9-13 mos7-8 yrs
E51URAUpper rightCentral incisor8-12 mos6-7 yrs
F61ULAUpper leftCentral incisor8-12 mos6-7 yrs
G62ULBUpper leftLateral incisor9-13 mos7-8 yrs
H63ULCUpper leftCanine (cuspid)16-22 mos10-12 yrs
I64ULDUpper leftFirst molar13-19 mos9-11 yrs
J65ULEUpper leftSecond molar25-33 mos10-12 yrs
K75LLELower leftSecond molar23-31 mos10-12 yrs
L74LLDLower leftFirst molar14-18 mos9-11 yrs
M73LLCLower leftCanine (cuspid)17-23 mos9-12 yrs
N72LLBLower leftLateral incisor10-16 mos7-8 yrs
O71LLALower leftCentral incisor6-10 mos6-7 yrs
P81LRALower rightCentral incisor6-10 mos6-7 yrs
Q82LRBLower rightLateral incisor10-16 mos7-8 yrs
R83LRCLower rightCanine (cuspid)17-23 mos9-12 yrs
S84LRDLower rightFirst molar14-18 mos9-11 yrs
T85LRELower rightSecond molar23-31 mos10-12 yrs

Eruption and shedding ages: American Dental Association.

Missing Teeth? Know Your Options

Knowing your tooth numbers makes it easier to talk with your dentist or a dental lab about replacing a missing tooth. For one to six missing teeth in an arch, a removable partial denture is usually the most affordable option. Compare flexible partials, acrylic partials, and a Nesbit partial for one or two back teeth, or see what each option costs in our denture cost calculator.

Tooth Chart FAQs

How are teeth numbered in the United States?

Most US dentists use the Universal Numbering System. Adult teeth are numbered 1 to 32, starting with the upper right third molar (wisdom tooth) as #1, moving across the upper teeth to the upper left third molar (#16), then dropping to the lower left third molar (#17) and moving across to the lower right third molar (#32). Baby teeth use the letters A to T in the same order.

Is tooth #1 on the left or right?

Tooth #1 is the upper right third molar, on the patient's right side. Dental charts are drawn as if you are facing the patient, so the patient's right side appears on the left of the chart.

What tooth number is a wisdom tooth?

In the Universal system, the wisdom teeth (third molars) are #1 (upper right), #16 (upper left), #17 (lower left), and #32 (lower right). In the FDI system they are 18, 28, 38, and 48.

What is the difference between the Universal, FDI, and Palmer systems?

The Universal system numbers adult teeth 1 to 32 and is standard in the US. The FDI (ISO 3950) system, used in most other countries, uses two digits: the first is the quadrant (1 to 4 for adult teeth) and the second is the tooth's position from the front (1 to 8). The Palmer system names the quadrant (for example, upper right) and numbers each tooth 1 to 8 from the midline.

How many teeth do adults and children have?

Adults usually have 32 permanent teeth including the four wisdom teeth, or 28 if the wisdom teeth are missing or removed. Children have 20 baby (primary) teeth, which are replaced by permanent teeth between about ages 6 and 12, according to the American Dental Association.

What are baby teeth called on a dental chart?

In the Universal system, baby teeth are labeled with the letters A through T. A is the upper right second molar, J is the upper left second molar, K is the lower left second molar, and T is the lower right second molar. In the FDI system, baby teeth use quadrants 5 to 8, such as 51 for the upper right central incisor.

What should I do if I have missing teeth?

Talk with a dentist about your options, which can include a partial denture, a bridge, or an implant. For one to six missing teeth in an arch, a custom partial denture is usually the most affordable option. You can mark your missing teeth on the chart above to see which FixUrSmile partial fits your situation.

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