Er:YAG激光辅助治疗慢性牙周炎的短期临床效果观察

A short-term clinical effect observation of Er: YAG laser assisted treatment of chronic periodontitis

目的评估Er:YAG(erbium-doped:yttrium aluminium garnet)激光在慢性牙周炎非手术治疗中的短期辅助效果。方法 30例慢性牙周炎患者,试验前1周接受全口龈上洁治,每例患者的下颌35、36或45、46随机分配到2组中,对照组采用超声与手工器械进行龈下刮治和根面平整术(scaling and root planing,SRP),试验组在采用超声与手工器械进行SRP后再辅助使用Er:YAG激光照射。记录基线、治疗后1个月、3个月时入选位点的探诊深度、菌斑指数、牙龈指数,并提取龈沟液,测定龈沟液量。结果治疗后1个月,试验组和对照组探诊深度、菌斑指数和牙龈指数均有降低,试验组和对照组比较探诊深度差异有统计学意义(t=2.25,P<0.05)。治疗后3个月,试验组探诊深度(t=3.68)、菌斑指数(t=2.78)和牙龈指数(t=3.72)与对照组相比均明显降低,差异有统计学意义(P<0.05)。治疗后1个月(t=2.85)和3个月(t=1.45),试验组和对照组比较龈沟液量差异有统计学意义(P<0.05)。结论短期效果而言,Er:YAG激光在慢性牙周炎非手术治疗中有一定的辅助治疗作用。

Objective To evaluate the short term adjuvant effect of Er： YAG laser in non surgical treatment of chronic periodontitis. Methods Thirty patients were included into this split-mouth single blind randomized controlled clinical trial. Teeth in the test group were treated with a single application of Er： YAG laser and scaling and root planing（ SRP）,while teeth in the control group were treated with SRP alone. Periodontal inflammatory parameters, plaque index, gingival index, and probing pocket depth were measured at baseline, 4-week and 3-month follow-up. Gingival crevicular fluid was collected from the periodontal pockets of teeth. Results At 4-week follow-up, probing pocket depth and gingival crevicular fluid showed significant difference between test group and control group（ P〈0. 05）. At 3-month follow-up, probing pocket depth, plaque index, gingival index, and gingival crevicular fluid showed significant difference between test group and control group（ P〈0. 05）. Conclusion In the short term effect, Er： YAG laser has a certain auxiliary therapeutic effect in the treatment of chronic periodontitis.