无托槽隐形矫治与传统固定矫治对牙周变异链球菌和牙龈卟啉单胞菌的影响  

Influence of bracketless invisible aligner technique and conventional technique on the number of Streptococcus mutans and Porphyromonas gingivalis

作　　者：石晶[1] 闫征斌[1] 侯景秋[1] 彭惠[1] 

机构地区：[1]大庆油田总医院口腔正畸科,大庆163000

出　　处：《国际口腔医学杂志》2016年第2期151-154,共4页International Journal of Stomatology

摘　　要：目的对比成人正畸患者应用无托槽隐形矫治技术与传统固定矫治技术的牙周指数、变异链球菌和牙龈卟啉单胞菌的变化。方法选择成人正畸患者30例,分为2组,实验组15例应用无托槽隐形矫治技术,对照组15例应用固定矫治技术。分别在矫治器戴入前,戴入后第1、3个月检查临床牙周指标[包括菌斑指数(PLI)、牙龈出血指数(SBI)、探诊深度(PD)],同时采集菌斑,利用实时荧光定量聚合酶链反应检测样本中变异链球菌、牙龈卟啉单胞菌和总细菌的数量,计算出变异链球菌和牙龈卟啉单胞菌的构成比。将临床牙周指数、变异链球菌和牙龈卟啉单胞菌构成比进行组间对比和组内不同时间点对比。结果治疗前实验组与对照组牙周指数、变异链球菌和牙龈卟啉单胞菌构成比差异无统计学意义(P>0.05);治疗中,实验组牙周指数、变异链球菌和牙龈卟啉单胞菌构成比均低于对照组(P<0.05),实验组PLI和变异链球菌构成比随时间延长而升高(P<0.05),SBI、PD和牙龈卟啉单胞菌构成比未见明显升高(P>0.05),对照组牙周指数、变异链球菌和牙龈卟啉单胞菌构成比均随时间延长而升高(P<0.05)。结论与传统固定矫治技术对比,无托槽隐形矫治技术更利于口腔卫生维护,但仍会对口腔卫生有不利影响。Objective This study aims to compare the periodontal indices and the percentage of Streptococcus mutans and Porphyromonas gingivalis between adult patients with bracketless invisible aligner and conventional brackets. Methods Thirty adult patients were divided into two groups（experimental group： 15 patients with bracketless invisible aligner; and control group： 15 patients with conventional brackets）. The clinical periodontal indices[plaque index（PLI）, sulcus bleeding index（SBI）, and probing depth（PD）] of the observed teeth were examined at three different time points： before orthodontic treatment and in the first and third months after treatment. Dental plaques were collected simultaneously at each time point. We used real-time quantitative polymerase chain reaction to detect and quantitate the number of total Streptococcus mutans and Porphyromonas gingivalis in each sample to determine the percentage of Streptococcus mutans and Porphyromonas gingivalis of total bacteria. Results Before treatment, the periodontal indices and the percentage of Streptococcus mutans and Porphyromonas gingivalis of total bacteria showed no difference between the two groups（P〉0.05）. Moreover, the periodontal indices and the percentage of Streptococcus mutans and Porphyromonas gingivalis of total bacteria were significantly lower in the experimental group than in the control group（P〈0.05）; the PLI and the percentage of Streptococcus mutans of total bacteria of the experimental group also increased with time（P〈0.05）.The SBI, PD, and percentage of Porphyromonas gingivalis of total bacteria also showed no difference between the two groups（P〉0.05）. The periodontal indices and the percentage of Streptococcus mutans and Porphyromonas gingivalis oftotal bacteria of the control group also significantly increased with time（P〈0.05）. Conclusion Compared with the use of conventional brackets, the bracketless invisible aligner technique is better for periodontal health, although it adversely affe

关 键 词：无托槽隐形矫治 牙周指数 变异链球菌 牙龈卟啉单胞菌 实时荧光聚合酶链反应 

分 类 号：R783.5[医药卫生—口腔医学]