Fig. 4From: Rapid prototyping-assisted tooth autotransplantation is associated with a reduced root canal treatment rate: a retrospective cohort studyThe workflow of biocompatible model fabrication. a The RP 3D-printed donor tooth model, b, c Negative mode made with alginate impression of the donor tooth(Cut in half). d Donor tooth replica made with Orthoresin from the negative modeBack to article page