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This study aimed to establish how dentists' knowledge, opinion and behaviour about cross-infection control were related and how they were affected by their ages, gender and the sizes of the practices in which they worked. In 1990/91 all general dental practitioners in the North Western Health Region of England were asked to complete a questionnaire about cross-infection control; 917 (75%) did so. Responses from all single-handed and one dentist selected randomly from each group practice were analysed (n = 546). The score to measure behaviour was based on guidelines on cross-infection control issued by the British Dental Association and this was correlated with scores for knowledge and opinion. The more knowledgeable not only tended to hold favourable opinions about the guidelines but also to practise them. Younger dentists were more knowledgeable about cross-infection control measures than older and more likely to wear gloves. Irrespective of age, all female dentists were more likely to wear gloves than their male colleagues. Single-handed dentists were less willing to treat carriers of HIV and HBV. Although 65% thought that recommended control procedures are feasible, 43% considered them prohibitively expensive.

A questionnaire about cross-infection control was sent to all GDPs in five FHSAs in the North Western Region. Replies came from 312 dentists, a response rate of 74%. They worked in 185 practices, a response rate of 85%. Gloves were worn routinely by 86% of dentists and 80% of DSAs. Handpieces were autoclaved between patients in 77% of practices. Much however, remains to be improved. DSAs could be better protected if more ultrasonic cleaners were used, eye protection encouraged and heavy duty gloves were available for cleaning instruments. BDA guidelines were reported as being the most influential factor, though it would appear that the media did persuade many practitioners to use autoclavable handpieces and sterilise them after each use.

The majority of older people live active lives and more are retaining their teeth. These people rely for their dental care on general dental practitioners. However, many find that the service they are offered falls short of their desires, and this study examined this problem from the points of view of the public and the dentists. Qualitative group discussions were conducted among 61 middle-aged and elderly people and 20 dentists, followed by a quantitative study involving 20 dentists and 57 of their patients. The aim was to discover what, if any, differences there may have been between their expectations of dental treatment. There were no significant differences between middle-aged and older peoples' views on barriers to the receipt of dental care. However, dentists assumed that their older patients would have significantly greater negative dental attitudes than their middle-aged patients. Dentists considered that ability to pay would be a significantly greater barrier for their working-class rather than their middle-class patients. However, among the patients themselves there was no significant difference. The comparison of dentists' and patients' views on barriers to treatment showed that dentists significantly overestimated their older patients' reluctance to receive dental treatment.

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