Abstract
It is generally agreed that the decision to take bitewing radiographs for detecting caries should be based on the benefit to the individual patient in relation to the risks associated with low dose radiation exposure and the costs. There is incomplete knowledge about the effectiveness of various methods for selecting individuals who will benefit from bitewing examination. Available knowledge suggests, however, that our ability to identify correctly those who will benefit is limited. It may, therefore, be more effective to combine population-and individual-based selection criteria. For this purpose, four key ages and individual-based criteria between the key ages are suggested.