Which component is also known as the reciprocating arm?

Which component is also known as the reciprocating arm?

• A. Bracing arm
• B. Rest
• C. Retentive arm
• D. Minor connector

Answer: (A)

The reciprocating arm is the bracing arm. In a clasp system, the retentive arm engages under an undercut to provide retention, while the bracing (reciprocating) arm sits on the opposite side of the tooth to counteract those forces and stabilize the tooth. This pairing helps prevent tipping and distributes forces during function. A rest provides vertical support for the tooth, the retentive arm is the active part that engages the undercut, and the minor connector simply links components—none of these serve as the reciprocal stabilizing arm.

The reciprocating arm is the bracing arm. In a clasp system, the retentive arm engages under an undercut to provide retention, while the bracing (reciprocating) arm sits on the opposite side of the tooth to counteract those forces and stabilize the tooth. This pairing helps prevent tipping and distributes forces during function. A rest provides vertical support for the tooth, the retentive arm is the active part that engages the undercut, and the minor connector simply links components—none of these serve as the reciprocal stabilizing arm.