系统口腔健康教育对自锁托槽周围牙茵斑的影响

目的通过对自锁托槽矫治错袷患者定期的牙菌斑染色情况进行比较，探讨系统口腔健康教育对自锁托槽周围牙菌斑的影响。方法将70例即将使用自锁托槽固定矫治器的中学生正畸患者随机分为两组，试验组35例进行系统口腔健康教育并使用牙间隙刷，对照组35例仅进行常规刷牙宣教。在崮定正畸前、治疗6个月、保持期第1个月复诊时对两组正畸患者进行牙菌斑染色，检测菌斑指数并比较结果。结果两组患者治疗前牙菌斑染色指数差异无统计学意义（P〉0．05），但在治疗6个月及保持期1个月全部指标牙位的牙菌斑染色指数差异均有统计学意义（P〈0．05）。结论系统口腔健康宣教并使用牙问隙刷，能提高患者的认知和配合意识，有利于改善自锁托槽矫治错耠患者的口腔卫生状况。

Impact of systematic oral health education on dental plaque around seif-ligating brackets

Objective To explore the impact of systematic oral health education on dental plaque around self-ligating brackets of orthodontic patients. Methods Seventy mid-school student patients with self-ligating braekets were randomly divided into two groups： test group and contzl groupl Thirty-five patients in test group received systematic oral hygiene education and instruction in the use of interdental brushes, and 35 patients in control group received instruetiml of con- ventional brushing. The plaques were collected and measured belbre treatment, 1 months Mter appliance placement and 6 months after treatment, respectively. Results Plaque indices （PLIs） showed no significantly statistic difference be- tween two ~nups before treatment, while PLIs showed significantly statistic difference between two groups at 1 months af- ter appliance placement and 6 months ＇alter treatment （ P 〈 0.05 ） . Conclusion It was suggested that systematic oral hygiene education and instruction in the use of interdental brushes, play an important role in the oral hygiene status of fixed-orthodontic patients with self-ligating brackets.