What clamp corresponds to numbers 2A?

The right maxillary clamp is the correct choice for corresponding to numbers 2A. In dental practice, clamps are used to secure a rubber dam in place during procedures, and the specific designation of clamps typically indicates the area of the mouth they are intended for as well as the type of teeth they are suited to accommodate.

The right maxillary clamp is designed to fit around the maxillary teeth (the upper teeth) on the right side of the mouth, which aligns with the designation of 2A in a dental numbering system. This clamp specifically accommodates the teeth in that region, allowing for effective moisture control during various dental procedures.

Other options represent different clamps that are designed for different areas or types of teeth. The left mandibular clamp is intended for the lower left side of the mouth, the extended molar clamp is used for molars but may not specify a side, and the two partially erupted molar clamps refer to clamps capable of holding partially erupted molars, which do not specifically match the designation of 2A. Therefore, the right maxillary clamp is the most accurate choice for this context.