Tooth Numbers - Permanent Teeth

Each permanent tooth is given a number. Here is a list of the permanent tooth numbers and names.

Tooth Numbers


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Here are a few questions with regards to the numbering and naming of teeth:

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Value: 1

 Toggle open/close quiz question

Value: 1
Which of the following in the name for tooth #20?


Things to learn from the photo album:

1. not all people will have their third molars (they may have never developed, not erupted or removed).

2. if a tooth is not present, the number is still assigned to that tooth and the number is skipped.



If you want to see a video that reviews information on tooth numbering, please click here.

(Video transcript)


 Here is a matching question that deals with tooth letters and numbers.

Value: 9
Match the items.
The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives.
a. Mandibular right primary first molar
b. Mandibular left first premolar
c. Maxillary left first molar
d. Mandibular right primary lateral incisor
e. Mandibular left primary canine
f. Mandibular right third molar
g. Mandibular right lateral incisor


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