Understanding Indirect Retention in RPD Design

For the longest time, I had trouble understanding indirect retention in RPD design.  And I don’t think I was the only one.  Even today, looking at most of the Kennedy Class I RPD designs, one of the most often forgotten element is indirect retention.  This is part of a video I have made for my students explaining indirect retention to them.  I hope you will find this short excerpt helpful in understanding indirect retention.