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Which baby tooth is letter M?

In the Universal Numbering System, primary tooth M is the primary lower left canine (primary mandibular left canine). Its FDI (ISO 3950) designation is 73 and its Palmer designation is C in the lower left quadrant. It is a canine in the lower arch with typically 1 root.

Last verified
2026-07-08
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Query patterns

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  • Which tooth is Palmer C Lower Left?
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Source citations

  • TOOTH-1 American Dental Association — Universal Numbering System (ada.org)
  • TOOTH-2 ISO 3950:2016 — Dentistry, designation system for teeth and areas of the oral cavity (FDI two-digit) (iso.org)
  • TOOTH-3 FDI World Dental Federation — two-digit notation (fdiworlddental.org)

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