Abstract
In clinical decision-making on whether or not to treat an oral disease and on making a choice from the spectrum of treatment options, the influence of the treatment on the physical and psycho-social well-being of the patient should play a crucial role. This awareness originates from gerodontology. To assess the value of a potential treatment, the concept quality of life has been advanced and various related questionnaires have been developed and employed. In the meantime, doubts have arisen about the value of these questionnaires. The present-day trend is to return to so-called qualitative research, which consists of systematic interviews of groups of older people using open-ended questions without making use of structured response options.
