Clinical study on the auxiliary effectiveness of dental floss or interdental brush in severe chronic periodontitis

Objective To study the auxiliary effectiveness of dental floss or interdental brush in treating severe chronic periodontitis.Methods Thirty-five patients with severe chronic periodontitis were selected.The subjects were randomly divided into two groups.Right methods of brushing teeth,scaling,root planning and dental floss or interdental brush were performed in the experimental group,and the same therapy was used in the control group except using dental floss and interdental brush.The following indexes and measurements were compared:plaque index(PLI),probing depth(PD),bleeding index(BI) and mobility degree(MD).Results PLI,PD and BI demonstrated a significant improvement(P0.01),and there was statistically significant difference between two groups in all indexes except MD after therapy.Conclusion It is considered as an auxiliary therapy in severe chronic periodontitis to administer dental floss or interdental brush.