Gerald Jackson
And knobs and rings and all these fancy intricate retention devices on a fiber post that's basically the amalgam mentality with the pair post with the threads in the prime one problem. Is the more complicated you Mills opposed the harder it is to wet these internal surfaces with cement or a some posts actually required adhesive some don't also compromise. The strength of the post where if there stresses on those areas where there is those irregularities would be most likely to fracture good point Kim refused if you cut rings or threads. In a fiber post you're actually cutting the longitudinal fibers weakening the post and essentially reducing the core diameter of the post more than what you think it is a mighty 1.5 with the rings and the cuts. In the grooves in the balls and the knobs you might be down to 1.2125 so you give up something however we know from testing the University of Alabama and a lot.