The introduction of faster screen/film combinations allows a reduction in radiation dose but at the expense of film quality. This study investigated the accuracy of landmark location on cephalometric radiographs made using two screen/film combinations. No significant differences in reproducibility of landmark location were found. There was a 20 percent difference in the radiation dose between the two film types studied.

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Author notes

Dr. Stirrups is a consultant orthodontist at the Glasgow Dental, Hospital and School in Glasgow, Scotland