“…Unfortunately, the research evidence on risk factors for the onset of oral disease is limited, so risk assessment is mainly based on GDP's clinical judgements. [16][17][18] Perhaps not surprisingly, ROEs are not only determined by oral health factors, as recommended, but they may also be influenced by other factors including dentists' diagnostic working style, 19 availability of manpower in dentistry, 20 practice characteristics, GDP-orientation in delivering oral care, [21][22][23][24][25] patient's attitude towards oral care 26 and financial incentives organised in society. 27 Little systematic research has been done, however, on such factors.…”