OBJECTIVES: To investigate the recall of oral health knowledge and confidence by nursing personnel in special housing facilities for the elderly, three years after an education programme. DESIGN: A cross sectional design using a questionnaire. SAMPLE: All nursing personnel, a total of 2,901 subjects, in five municipalities in south-western Sweden; of whom 950 had attended the programme. The response rate was 67% (1930 subjects). INTERVENTION: An oral health education programme consisting of four one-hour lessons. RESULTS: The oral health education programme still had an effect on the participants' attitudes towards oral health three years later. When comparing the trained group (OHEP+) which attended the programme with those who did not have training (OHEP-), the perceived ability, opportunity and the knowledge of oral health were significantly better in the former group, p