个性化舌侧矫治对牙周健康的影响

Effects of individual lingual appliance on periodontal health

目的研究成人个性化舌侧矫治对牙周健康的影响。方法选择成人正畸患者8例共48个牙位点,根据错牙合畸形程度分为两组,粘结舌侧矫治器附件的单颌牙齿作为实验组,暂时不粘结舌侧矫治器附件的对颌牙齿作为对照组。在矫治前、矫治2个月、矫治6个月、矫治结束后1个月对牙龈指数(GI)、出血指数(BI)、菌斑指数(PLI)等变化进行检测,并对数据进行统计分析;以上述8例患者作为舌侧矫治组,另选8例唇侧矫治患者,研究唇、舌侧矫治牙周临床检测指标的差异。结果个性化舌侧矫治的实验组与对照组及矫治之前相比,矫治2个月及6个月后,GI、BI、PLI升高(P<0.05),矫治结束后1个月,PLI升高(P<0.05),GI、BI差异无统计学意义;唇、舌侧矫治结束后两组间GI、BI、PLI差异无统计学意义。结论舌侧矫治会使成人菌斑指数升高,当患者形成正确的牙周健康理念、牙周维护较好时,不会引起牙龈和牙周炎症,其为个性化舌侧矫治普遍运用于临床提供理论依据。

Objective To investigate the effects of periodontal health with individual lingual appliance. Methods48 teeth of eight adult patients were chosen,according to the malocclusion extent,and divided into two groups.The jaws with the attachment of lingual appliance were used as the experimental group,and the other jaws with no lingual appliance were used as the control group. The changes of gingival index( GI),bleeding index( BI),plaque index( PLI) were detected before treatment and 2,6 months after treatment,and 1 month after finishing the treatment,and the datas were recorded and analyzed. Eight patients were selected as lingual orthodontics group,chosen the other eight patients with lip side orthodontics,to study the difference of periodontal test indexes between lip side and lingual orthodontics. Results Compared with the control group,GI,BI,PLI increased at 2 months and 6 months after treatment( P < 0. 05),but at 1 month after finishing the treatment. PLI increased( P < 0. 05).There was no statistically significance of GI,BI. There was no significant difference in GI,BI and PLI between the two groups after lip and lingual orthodontics. Conclusion Individual bracket systems in lingual appliance increase the plaque index. The effects don't cause gingival and periodontal inflammation,which provides a theoretical basis for the clinical application of the individual lingual orthodontics.