The lost 1896 Clark X-ray images.

This paper examines the lost Clark X-ray images and the birth of dental radiographs. Whilst there were important developments arising at the end of the nineteenth century with regard to radiological processes, it was a time when the need for radiation safety was unknown resulting in harmful and often fatal consequences. We are therefore indebted to our predecessors who, through these discoveries, have shaped today's methods and safe practising of radiography.