Prosthodontics Lecture 12 Quiz

A stress breaker in dentistry is a device that increases occlusal forces on specific dental structures.

Stress breakers redirect forces from one area to another bearing structure.

The aim of stress breaking in dentistry includes directing occlusal forces away from the abutment teeth.

Sharing load between natural teeth and saddle areas is not a consideration in stress breaking according to the text.

The RPI system stands for Rest, Plate, and I-bar, with the rest mesially located and the proximal plate on the abutment distally.

The retentive tip in the RPI system is positioned distal to the mesiodistal height of contour.

When a functional load is applied to the extension base in the RPI system, the proximal plate disengages from the guiding plane.

The I-bar in the RPI system moves towards the distal embrasure when a functional load is applied, reducing the forces on the abutment tooth.

The combination clasp is harsher to the associated abutment than a traditional half-round clasp arm would be.

The vertical forces applied on distal extension base must pass anteriorly along the upper bar first.

The split bar is designed to allow the direct transfer of vertical forces to the abutment tooth.

The combination clasp arm permits movement in multiple directions for the wire-retained arm.