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J Ethnopharmacol ; 281: 114541, 2021 Dec 05.
Article in English | MEDLINE | ID: mdl-34416298

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: The presence of biofilm in oral cavity is associated with dental plaque and related diseases, including gingivitis, periodontitis and inflammatory responses. Some medicinal plants traditionally used for biofilm-associated pathologies such as Camellia sinensis (L.) Kuntze, Punica granatum L. and Lippia sidoides Cham. are currently incorporated into dosage forms as antiplaque agents. AIMS OF THE STUDY: To present the current application of medicinal plant extracts associated in drug dosages to control microbial biofilms, with emphasis on those present in the oral cavity, especially to treat dental plaque. MATERIALS AND METHODS: A PRISMA-compliant systematic search was conducted using the PubMed, Web of Science and Scopus databases. After the abstract and full-text analysis, the Cochrane Collaboration's tools for clinical studies was applied to assess the methodological quality of randomized clinical trials. RESULTS: Of 964 potentially eligible studies, 47 studies met the inclusion criteria and were included in the systematic review. Camellia sinensis was the most commonly used species (8 studies), with positive results in reducing both the PI and GI in the form of mouthwash, toothpaste and gel. The Melaleuca alternifolia oil (5 studies) demonstrated low reduction in PI but important effects on GI scores. Azadirachta indica (4 studies) extracts presented efficacy similar to CHX to improve the periodontal parameters, including PI and GI. Ricinus communis oil (3 studies), despite reducing microbiological counts and GI, did not prove to be better than the hypochlorite solution, used as an alternative treatment for dentures. The main bioactive compounds described for the plant species are polyphenols, essential oils and alkaloids, most of them with identified antibiofilm activities. CONCLUSIONS: These active species could lead to future development of safer and newer treatments for oral biofilm-associated infections. However, more studies are needed to further understand the clinical relevance of their application.


Subject(s)
Biofilms/drug effects , Mouth Diseases/microbiology , Mouth Diseases/prevention & control , Plant Extracts/pharmacology , Plants, Medicinal/chemistry , Humans
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