GENERAL INTRODUCTION Fixed orthodontic treatment Orthodontics is the branch of dentistry concerned with facial growth and the development of the dentition, and with occlusion and the prevention and correction of occlusal anomalies [1]. Approximately 53-57% of Dutch 12-year olds undergo orthodontic treatment—some …

Youth departing from secure youth care are often not well prepared for living on their own. This study aims to provide more insight into youth’s perspectives on what they need to improve their chances for successful return to and participation in Dutch society. The study is a first necessary step on a …

De verdediging hiervan was op 26 september. Background: The insertion of fixed orthodontic appliances increases the risk of dental caries, particularly in adolescents. Caries can be prevented through good oral health behavior. To support adolescents with fixed orthodontic appliances and for promoting …

Young talented athletes that mature have an increased injury risk. Human movement scientist Alien van der Sluis studied soccer players of the talent development program of FC Groningen and tennis players of the talented development program of the Royal Dutch Lawn Tennis Federation (KNLTB). The soccer …

In a longitudinal design, we measured 50 low-achieving adolescents’ reading comprehension development from Grades 7 to 9. There were 24 native Dutch and 26 language minority students. In addition, we assessed the roles of (a) linguistic knowledge, (b) metacognitive knowledge, and (c) reading fluency …

Introduction: The 6-minute walk test is a submaximal exercise test used to quantify the functional exercise capacity in clinical populations. It measures the distance walked within a period of 6-minutes. Obtaining reference values in the pediatric population is especially demanding due to factors as …

The purpose of this study was to identify differences in traumatic and overuse injury incidence between talented soccer players who differ in the timing of their adolescent growth spurt. 26 soccer players (mean age 11.9 ± 0.84 years) were followed longitudinally for 3 years around Peak Height Velocity, …

Jocelyn Bergland developed a preparatory training program for adolescent dancers of which critical reflection is an important part in addition to daily technical training and creative work. Through reflection, the young dancers monitor their own growth and development. Jocelyn Bergland was asked to join …

Alcohol use among adolescents has become a major public health concern over the past decade. This alcohol use is associated with various other problems, therefore it is important to detect at-risk adolescents as a starting point for interventions. The main aim of this thesis is to identify determinants …

Creating environments in physical education (PE) that foster perceived competence and physical activity during gender-mixed game play lessons is a challenge, especially with adolescent girls. This study is a small experiment in one PE lesson that aimed to increase the perceived competence and in-class …