According to the Iranian Ministry of Health, most Iranians do not adequately pay attention to
oral health. Since this is the same for high-income families, it seems that this problem is
rather a cultural habit and does not solely relate to people’s economic situations (personal
communication). Thus, if one wishes to implement an intervention to change people’s
behavior, it should be noted that in such processes we usually face what people believe on
their subjective rather than the objective world of a physician or a physicist [6,7]. As such
designing interventions based on the Health Belief Model might be more relevant.