After the end of the Second World War in 1945, Yrjö V. Paatero, Doctor of Dental Science, worked at the University of Helsinki’s Institute of Dentistry, overseeing X-ray examinations and diagnostics. He longed to do research work, but had little time for it because his days were filled with routine tasks. At the time, dental X-rays were taken by placing a film in the patient’s mouth time and again because several X-rays had to be taken to determine the condition of the entire dentition. Paatero was keen to find a less time-consuming solution, and the seed of the idea of panoramic radiography began to germinate. However, the road to this point had been far from simple, and several stumbling blocks still remained.
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