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Which letter represents the maxillary left primary second molar in the Universal or Standard tooth numbering system?

A) K

B) G

C) J

In the Universal or Standard tooth numbering system, primary teeth are designated with letters. The maxillary teeth, which refer to the upper teeth, are identified with letters A through J on the left side and K through T on the right side. Specifically, the maxillary left primary second molar is designated as "J." This means that the letter representing the maxillary left primary second molar accurately corresponds to the fifth position in the sequence of primary teeth on the upper left side, which aligns with the correct labeling convention used in this system. Understanding the layout of tooth numbering is crucial for recognizing and communicating about dental anatomy effectively.

D) H

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