Epoxy Resin Mastery: Crafting Educational Models with Precision

Organ preservation is a necessary and diverse process in morphological studies and is traditionally achieved through formalin fixation and plastination. A comparatively innovative method is organ embedding in epoxy resin, which provides durable and non-toxic models during manipulation. This study aimed to create 30 models: 12 from human specimens and 18 from animal specimens. Samples were incubated in 96.2% ethanol for 24 h to disinfect and remove formalin and excess fat, followed by 100% glycerol incubation for 2 h under vacuum to create a protective interface between the tissue and the activated epoxy resin. Afterward, the tissues were fixed in scaffolds and embedded in epoxy resin. Once hardened, the models were post-processed to enhance clarity and longevity. Each model was mounted on a wooden platform featuring a QR code linking to a presentation describing the visible anatomical structures. Some modifications were made to previously described protocols to optimize the method, improving quality and reducing preparation time. Among the 30 models, two anatomical and two clinical cases of organ preservation were especially interesting. Despite the numerous challenges and limitations, this method yields promising potential for morphological studies, allowing safe organ manipulation without protective equipment and anatomical documentation via QR code-linked presentations.