“…Of the 18 studies (in 23 publications) measuring self‐reported knowledge/attitudes/beliefs or OHRQoL, 2,19,21,24,25,27,28,36‐39,41‐45,47‐49,51 89% of studies found statistically significant positive results versus control 2,21,24,25,28,36‐39,41‐45,47,49,51 . Of the five studies reporting outcomes of behavioural ‘proxy’ measures (Multidimensional Health Locus of Control, self‐efficacy and planning ability, attitudes and intentions, stability of behaviours and stage transitions or components of the Health Belief Model), all reported statistically significant positive results 31,39,44,49,51 …”