RPD Framework Minor Connectors

As mentioned in our earlier dicussion, the guide plate, while technically a minor connector, is treated separately due to its function. So now, we will turn our attention to the minor connectors that serve strictly to connect various RPD design elements to the major connector. Generally, there are three categories of minor connectors:

1) Minor connectors that attach primary rests to the major connector
2) Minor connectors that attach indirect retainers to the major connector
3) Minor connectors that attach clasps to the major connector

The key design protocols for minor connectors are:
1. Should be positioned in interproximal embrasures
2. Must be rigid and strong
3. Must not interfere with the opposing occlusion
4. Should not create a food trap
5. Should not interfere with normal anatomic contours
6. Should join the major connector at a right angle to cover as little of the marginal gingiva as possible
7. Ideally, there should be 4-5mm of space between each minor connector

*Portions of this post were adapted from the book: Atlas of Removable Partial denture Design by Dr. Russell J. Stratton and Dr. Frank J. Wiebelt published by Quintessence Publishing Co., Inc. in 1988. Pages 43-44