What tooth number represents the Primary maxillary right second molar in the Universal Numbering System?

In the Universal Numbering System, primary teeth are designated with letters ranging from A to T. The primary maxillary right second molar is specifically identified as tooth number A in this system. This tooth is part of the primary dentition, which consists of 20 teeth, and the letters assigned to primary teeth are distinct from the numbering used for permanent teeth.

The primary maxillary right second molar is located in the upper right quadrant of the mouth and is the second molar in the sequence of primary teeth, coming after the primary maxillary right first molar (designated as tooth B). Therefore, tooth number A is the correct designation for the primary maxillary right second molar, highlighting the systematic approach used in dental nomenclature to easily identify and communicate about different teeth.