Objectives
To identify and analyze determinants for oral-health-related quality of life among adults admitted to a Danish research program on general health and lifestyle (DANHES 2007-2008)

Materials and methods
Study population of the present (dental) study: 4402 volunteers invited among participants of main study (n18065) covering 12 different Danish cities. Age 18-96 years (average 54)
Structured interviews (from main study and dental study) and clinical oral examination
Oral-Health-Related Quality of Life measured by a 10 item index
Non-parametric statistical methods, chi-square, simple and multivariate logistic regression
Data are not representative to the Danish population, however, associations between outcome and independent variables are considered valid.
Regular dental visits and high number of natural teeth are determinants for a high level of Oral-Health-Related Quality of Life
Untreated caries, wearing dentures and high caries experience are determinants for reduced Oral-Health-Related Quality of Life


Results
33 persons were edentulous, Mean DMFS = 62, 7 % wore dentures
88% were regular users of the dental care system
24 % reported Oral-Health-Related Quality of Life problems
6 % reported a score of 3 or more Oral-Health-Related Quality of Life problems (maximum score = 30)
Most frequent problems were:
Feeing embarrassed because of the appearance of teeth (or dentures) 13 %
Difficulties with eating food due to mouth or teeth problems 9 %
Feeling tense because of the appearance of teeth (or dentures) 9 %
Avoid smiling/laughing because of the appearance of teeth (or dentures) 6 %