Clinicomicrobiological evaluation of 2% chitosan mouthwashes on dental plaque

Abstract

Aim: This study was conducted to evaluate microbiological and clinical effects of a chitosan chlorhexidine (CH) mouthrinse on plaque control. Materials and methods: Subjects were divided into three groups. Group I included 15 subjects who used 0.2% chlorhexidine digluconate (CHX), group II included 15 subjects who used 2% chitosan (CH) solution, and group III involves 15 subjects who used 0.2% chlorhexidine/2% CH combination. Plaque index (PI), gingival index (GI), and probing depth (PD) were recorded at the baseline, on day 0, and after 4 days. Supragingival plaque samples were subjected for microbiological evaluation. Statistical analysis was done using statistical software IBM Statistical Package for the Social Sciences (SPSS), version 21. Results: Plaque index was lowest in group I at day 0, while it was highest in group III. At day 4, PI was highest in group II, while lowest in group III. Gingival index was lowest in group I and highest in group II at day 0, and lowest in group I and highest in group III at day 4. There was no statistical difference in Streptococcus mutans (S. mutans) count between groups at any time interval. Conclusion: Both chitosan and CH were found to be effective in controlling plaque. However, a combination of both provides even better results. Clinical significance: The present study showed that chitosan can be used as an antiplaque agent.