BACKGROUND: This study was carried out to investigate the effectiveness of a propolis-containing mouthrinse in inhibition of plaque formation and improvement of gingival health. MATERIALS AND METHODS: Thirty subjects were selected and randomly assigned into three groups of ten subjects each, which received a propolis-containing mouthrinse, or a negative control (Saline) or a positive control (Chlorhexidine 0.2%). Plaque index and gingival index were assessed at baseline and at a five-day interval. RESULTS: Chlorhexidine mouthwash was found to be better than propolis and saline in inhibiting plaque formation. Propolis was found to be only marginally better than chlorhexidine in improving gingival scores. CONCLUSION: The present study suggests that propolis might be used as a natural mouthwash, an alternative to chemical mouthwashes, e.g., chlorhexidine. Further, long term trials are required for more accurate data and any conclusive evidence.
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Kukreja et al. (2011) studied this question.