During the restoration project, the common objectives and stable collaboration between the University of Turin, local institutions and the Superintendence of Piedmont ensured compliance to a rigorous methodological approach. Between 2003 and 2006, thirty-five restorators and technicians worked to recover the original conditions of the museum spaces and collections, left untouched for over a century.

A conservative form of intervention was carried out to restore the plaster and the stucco-work, bringing back their original colour, as well as the white granite columns, the venetian floors and the lunettes, which house eleven oilpaintings portraying scientists of the past. Similarly, the showcases, window panes and frames were restored to evoke a 19th century atmosphere. The new lighting project was carefully studied to emphasize the solemn architecture of the two halls. The objects belonging to the main collections were also restored and among these were the wax models, part of one of the most important existing collections, made up of over 200 pieces.

The historical archive was reorganized and enriched with a card-index, in order to facilitate the recovery of essential information for the reconstruction of the history of the objects exhibited and of the individuals that worked in the museum. These restorative operations have given back to us a museum that ought to be visited as one of the fewexamples of 19th century scientific museology, left largely unaltered.