Which component is described as a flexible metal arm that grasps teeth to retain the denture and can exhibit semi-flexibility along its length?

Which component is described as a flexible metal arm that grasps teeth to retain the denture and can exhibit semi-flexibility along its length?

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

Answer: (B)

The key idea is how a denture is held in place by a direct retainer that grips the tooth. The component described is the retentive arm of a clasp. It’s a flexible metal arm designed to engage an undercut on the tooth and hold the denture by elastic deformation. Its ability to be semi-flexible along its length allows it to adapt to different tooth contours and undercuts, providing secure retention without needing excessive force. Rest contributes vertical support to keep the denture seated; bracing arms provide rigidity to resist horizontal forces and stabilize the framework; minor connectors link components. So the retentive arm is the part that actually grasps the tooth to retain the denture.

The key idea is how a denture is held in place by a direct retainer that grips the tooth. The component described is the retentive arm of a clasp. It’s a flexible metal arm designed to engage an undercut on the tooth and hold the denture by elastic deformation. Its ability to be semi-flexible along its length allows it to adapt to different tooth contours and undercuts, providing secure retention without needing excessive force. Rest contributes vertical support to keep the denture seated; bracing arms provide rigidity to resist horizontal forces and stabilize the framework; minor connectors link components. So the retentive arm is the part that actually grasps the tooth to retain the denture.