Original ResearchPublished 22 September 2026Early occupational therapy use of a 3D printer introduced with minimal formal support: a single-site pre–post observational studyYusuke Harada · Yuki Sawada · Hiroshi Momma · Rie Takeshima · Jun SuzurikawaFrontiers in Rehabilitation Sciencesdoi 10.3389/fresc.2026.1859684