Figure 1: Fabrication of resin tooth samples and 3D-printed novel single-tooth template. (a) Patient's pre-existing CBCT of tooth #21 revealing PCC, (b) Segmented tooth #21 as STL file, (c) Simulation of root canal with specific dimensions in apical region, (d) 3D-printed resin tooth with simulated PCC, (e) Pre-clinical set-up of wax jaw model with mounted resin tooth, (f) Projected straight-line access and virtual drill path planning, (g) Virtual template fabrication – opening created on incisal aspect of the template corresponding to drill path, (h) 3D-printed resin single-tooth template