PMID: 2109000Mar 1, 1990Paper

Mutans streptococci in plaque from margins of amalgam, composite, and glass-ionomer restorations

Journal of Dental Research
M SvanbergD Orstavik

Abstract

Levels of mutans streptococci in plaque samples from margins of Class II amalgam (Dispersalloy), composite (P-10), and glass-ionomer (Ketac Silver) restorations were compared. Fifty-one children, each having one of the restorations in a permanent first molar, were part of an inter-individual comparison, giving 17 restorations of each material. The age of the children, the age of the restorations, and the salivary levels of mutans streptococci were comparable in the three groups. Another seven children--each having both a composite and a glass-ionomer restoration of the same age placed on contralateral premolar or molar teeth--were part of an intra-individual comparison. The percentage mutans streptococci of total CFU count in plaque was higher on composite (mean 13.7) and amalgam (mean 4.3) than on glass-ionomer (mean 1.1) restorations in the inter-individual comparison, and higher on composite (mean 4.2) than on glass-ionomer (mean 0.4) restorations in the intra-individual comparison. In both comparisons, the differences in values between samples from glass-ionomer restorations and samples from composite or amalgam restorations were statistically significant (p less than 0.05).

Associated Clinical Trials

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Citations

May 17, 2000·Journal of Biomedical Materials Research·K Kawai, Y Tsuchitani
Dec 5, 2006·European Archives of Paediatric Dentistry : Official Journal of the European Academy of Paediatric Dentistry·J Foley
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