As dentists worldwide begin to tackle the backlog of patients whose tooth decay may have worsened during the Covid-19 pandemic*, Edinburgh-based dental technology company, Calcivis, is preparing for a US launch with a restructuring of its board and the successful completion of its latest funding round.  Calcivis has developed the world’s first biotechnology-based dental imaging system and has been part of the portfolio of the Scottish business angel investment syndicate, Archangels, since 2012.