U.S. Army Spc. Izachar Ojeda, left, a student in the Medical Education and Training Campus Occupational Therapy Assistant course assigned to the 264th Medical Battalion, molds a custom thermoplastic splint to the hand of fellow Army student Pfc. Rachael Kreierat while their instructor, U.S. Navy Hospital Corpsman 1st Class Lindsey Pruett, middle, watches at Joint Base San Antonio-Fort Sam Houston on June 16, 2026. This section of the course teaches students to use heat guns and heated low-temperature thermoplastics to mold custom braces that support tissue healing and joint rehabilitation.