科研之友
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摘要
Introduction: Despite the high prevalence of dental anxiety in children, there is little research examining anxiety before orthodontic procedures. This parallel-group randomized controlled trial assessed whether provision of additional multimedia information regarding the bond-up procedure affected anxiety in adolescent orthodontic patients. The effects of sex, ethnicity, and age were also investigated. Methods: Participants were recruited from the orthodontic department of the Eastman Dental Hospital, University College London Hospitals Foundation Trust, in the United Kingdom; all were 10 to 16 years of age, with no history of orthodontic treatment, and patient assent and parental consent were obtained. The participants were randomized into control (n = 45) and intervention (n = 45) groups using a random number table. Both groups were given verbal information regarding the bond-up procedure, and the intervention group was additionally given a DVD showing a bond-up. Anxiety was assessed in the department immediately before the bond-up using the State-Trait Anxiety Inventory for Children, with state anxiety as the primary outcome measure. The researchers were unaware of group allocations while enrolling patients, scoring questionnaires, and analyzing data. Results: A statistically significant difference was found between groups, with a difference in scores of 2 (95% confidence interval for the difference = 0.15 to 3.85). The median state anxiety was 32 in the control group (n = 42) and 30 in the intervention group (n = 43; P = 0.012). Sex, ethnicity, and age did not significantly affect anxiety. No harmful effects were noted. Conclusions: Additional information reduces anxiety levels, but other methods could be more cost-effective than the DVD. Sex, ethnicity, and age did not statistically affect the anxiety levels.
