Optimization and Application of 3D Prosthesis Using Physical-Digital Technologies as a Solution for the Restoration of Missing Parts on Sculpture

Abstract

This research aims to show the optimization and application of 3D prosthetics in phases of replacement in broken sculptures and ornaments. Digital technologies become important in different industrial sectors and, in Conservation and Restoration of Cultural Heritage, are an alternative to conventional techniques using 3D tools for volumetric reconstruction. The intervention is developed on a missing part localized in the head of an alabaster sculpture representing San Antonio Abad. To do this, different phases were carried out: register using a 3D scanner called Go!SCAN50 Creaform, digital modeling using Zbrush and printing a prototype of the 3D prothesis using a Form2 printer. Also, the prothesis is attached to the original by magnetic systems according to the optimised theoretical model. The results reveal the non-invasive, reversible and recognizable character of the intervention. Conclusively, the use of 3D prosthesis using physical-digital technologies as a solution in the restoration of the missing parts sculpture is shown as a viable, reversible and effective method.