Specialist Registrar, Eastman Dental Institute, University College London, London, United Kingdom.
Am J Orthod Dentofacial Orthop. 2013 Oct;144(4):505-11. doi: 10.1016/j.ajodo.2013.06.013.
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.
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.
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.
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.
尽管儿童的牙科焦虑症患病率很高，但很少有研究检查正畸前的焦虑症。本平行组随机对照试验评估了提供额外的关于粘结过程的多媒体信息是否会影响青少年正畸患者的焦虑症。还研究了性别、种族和年龄的影响。
参与者从英国伦敦大学学院医院东曼牙科医院的正畸科招募；他们的年龄均在 10 至 16 岁之间，没有正畸治疗史，并且获得了患者同意和家长同意。使用随机数字表将参与者随机分为对照组（n = 45）和干预组（n = 45）。两组均接受了关于粘结过程的口头信息，干预组还额外观看了一个显示粘结过程的 DVD。在粘结前，在科室使用儿童状态-特质焦虑量表评估焦虑症，以状态焦虑为主要观察指标。在招募患者、评分问卷和分析数据时，研究人员不知道分组情况。
发现组间存在统计学显著差异，得分差异为 2（差异的 95%置信区间为 0.15 至 3.85）。对照组（n = 42）的中位状态焦虑为 32，干预组（n = 43）为 30（P = 0.012）。性别、种族和年龄对焦虑症无显著影响。未发现有害影响。
额外的信息可以降低焦虑水平，但其他方法可能比 DVD 更具成本效益。性别、种族和年龄对焦虑水平没有统计学影响。
