Pathophysiological Sequence:Mechanical Delamination: Under the immense, multi-directional shear and compressive forces of mastication, the unreinforced Proplast-Teflon material undergoes structural breakdown and fragmenting.Macrophage Recruitment: Microscopic particulate polymer and metal debris flake off into the joint spaces, triggering a massive influx of foreign-body giant cells and macrophages attempting to phagocytose the non-degradable particles.Cytokine Cascade: Unable to digest the debris, the immune cells release a continuous wave of pro-inflammatory cytokines (such as TNF-$\alpha$, IL-1, and IL-6).Osteolysis: This localized inflammatory storm upregulates osteoclast activity, resulting in aggressive bone resorption, destruction of the glenoid fossa and condyle, and ultimate joint collapse. convert this into image
