Reconstruction and physical fit analysis of fragmented skeletal remains using 3D imaging and printing

Abstract

Physical fit analysis (PFA) entails physically fitting fragmented evidence together to determine shared origin. PFA can be challenging to conduct with bone fragments particularly when fragile, sharp, or embedded in other materials. Three-dimensional (3D) imaging and printing techniques can circumvent these challenges. We compare two different 3D imaging techniques, micro computed tomography (μCT) and structured light scanning (SLS). By generating virtual 3D models and prints of burned human bone fragments, we test the suitability of these imaging techniques and subsequent 3D printing for PFA. We found 3D imaging and printing allowed for effective PFA without excessively handling the original fragments.