THE IMPACT OF QUALITY-CONTROL ON RADIOGRAPHY IN GENERAL DENTAL PRACTICE

The aim of this study was to assess the impact of two quality control measures upon the quality of periapical radiographs in general dental practices. Five general dental practitioners took part in the study. Periapical radiographic quality was assessed before and after the introduction of film holders and quality control measures for processing. Prior to the introduction of the quality control measures, 49% of radiographs were assessed as being 'unacceptable', 49% exhibited faults but were 'acceptable' for diagnostic purposes, while only 2% of radiographs were 'excellent' being entirely free of faults. After the introduction of film holders and processing quality control procedures 39% were 'unacceptable' (P < 0.05), 56% were 'acceptable' and 5% of radiographs were classified as 'excellent'. It is concluded that current recommendations to dentists to use film holders and to carry out processing quality control are justified in terms of an improvement in the diagnostic quality of radiographs. However, improvements in undergraduate and continuing education for all members of the dental team, with emphasis on practical 'hands-on' instruction, may improve the effectiveness of these recommendations.