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Razak, F.A. and Othman, R. Y. and Rahim, Z. H. (2006) The effect of Piper betle and Psidium guajava extracts on the cell-surface hydrophobicity of selected early settlers of dental plaque. J Oral Sci, 48 (2). pp. 71-75. ISSN 1343-4934

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    The adhesion ofearly settlers of dental plaque to the tooth surface has a role in the initiation of the development of dental plaque. The hydrophobic surface properties of the bacteria cell wall are indirectly responsible for the adhesion of the bacteria cell to the acquired pellicle on the tooth surfaces. In this study, the effect of aqueous extract of two plants (Psidium guajava and Piper betle) on the cell-surface hydro-phobicity of early settlers of dental plaque was determined in vitro. Hexadecane, a hydrocarbon was used to represent the hydrophobic surface of the teeth in the oral cavity. It was found that treatment of the early plaque settlers with 1 mg/ml extract of Psidium guajava reduced the cell-surface hydrophobicity of Strep. sanguinis, Strep. mitis and Actinomyces sp. by 54.1, 49.9 and 40.6, respectively. Treatment of these bacteria with the same concentration of Piper betle however, showed a comparatively lesser effect (< 10). It was also observed that the anti-adhesive effect of the two extracts on the binding of the early plaque settlers to hexadecane is concentration dependent.

    Item Type: Article
    Additional Information: Cited By (since 1996): 19 Export Date: 11 June 2012 Source: Scopus PubMed ID: 16858135 Language of Original Document: English Correspondence Address: Razak, F.A.email: fathilah@um.edu.my Chemicals/CAS: Plant Extracts
    Uncontrolled Keywords: plant extract Actinomyces analysis of variance article bacterium adherence dental pellicle drug effect guava hydrophobicity microbiology physiology Piper betle Streptococcus mitis Streptococcus sanguinis surface property tooth plaque Bacterial Adhesion Dental Plaque Plant Extracts Psidium Streptococcus sanguis Surface Properties
    Subjects: Medicine and Dentistry
    Divisions: UNSPECIFIED
    Depositing User: Mr Ahmad Azwan Azman
    Date Deposited: 14 Jun 2012 06:48
    Last Modified: 14 Jun 2012 06:48
    URI: http://opendepot.org/id/eprint/1144

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