Evaluation of the Clinical effects of Different Kinds of Subgingival Irrigation in the Treatment of Periodontitis

Objective: To assess and compare the clinical effects of ultrasonic scaling subgingival irrigation in different ways,for moderate and sever chronic periodontitis.To analysis and evaluate the value and clinical characteristics of the different ways of ultrasonic scaling subgingival irrigation.Methods: 68 teeth of 15 patients with moderate or advanced chronic periodontal disease were chosen and divided into two groups at random: experimental group(ultrasonic scaling subgingival irrigation with simultaneous subgingival irrigation with 0.2%metronidazole) and control group(traditional subgingival scaling or subgingival irrigation with 0.2%metronidazole).The periodontal indices(PLI,SBI,PD,AL) were recorded just before and 7 days after treatment.Respectively compare the periodontal index changes of experiment group and control group before and after the periodontal treatment,and the periodontal index differences of the two groups before and after the periodontal treatment.Results: After ultrasonic subgingival scaling and subgingival irrigation with metronidazole,the periodontal indices(PL,SBI) were significantly lower;after treatment,experimental group(PL,BOP,PD,AL) lower level was greater than the control group.Conclusion: Ultrasonic subgingival scaling with simultaneous subgingival irrigation is more effective than traditional subgingival scaling or subgingival irrigation.