In recent years, research on the influence of oral health on quality of life among children has become increasingly popular. Half of the children and adolescents will have had moments of diminished oral health and that can lead to functional problems, pain and decreased quality of life. While measuring oral health-related quality of life of children, reports of parents are frequently used as a proxy. Diminished oral health not only has an impact on the child’s quality of life, but also on that of his family members. Results from studies on oral health-related quality of life in children may be used as the basis for useful guidance for parents and children on improving oral health and quality of life.