Annual number of intraoral radiographs in Denmark and other countries

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Abstract
It has been demonstrated previously that in 1982, 2.4 million intraoral radiographs were taken in Denmark, or 0.47 radiograph per inhabitant. In the present study this frequency is compared to frequencies in other countries. The number of radiographs per inhabitant varied between 1.6 (Sweden) and 0.08 (Hungary). It is concluded that the frequency in Denmark is lower than in Sweden, USA, Norway, and Japan, but higher than in Great Britain, Finland, and Hungary. The increase in use of intraoral radiography was compared for five countries. The frequency curves exhibited nearly identical slopes, but the rates of increse for Great Britain and Denmark were approximately 15 yr delayed in comparison with Sweden, USA, and Japan.

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