IMPORTANT NOTES ABOUT FULCRUM LINES

📍 INTRODUCTION:

In removable partial dentures (RPDs), achieving stability and retention is crucial for patient comfort and function. One of the key biomechanical factors in RPD design is the fulcrum line—an imaginary axis around which the denture rotates due to functional forces.

This blog post breaks down fulcrum lines, their classification, and their clinical relevance in a simple and easy-to-understand manner.

📍 WHAT IS A FULCRUM LINE?

A fulcrum line is an imaginary axis passing through abutment teeth, around which the RPD tends to rotate during function. Depending on the placement of occlusal rests and the Kennedy classification of the edentulous space, different fulcrum lines are established.