期刊
CLINICAL ORAL INVESTIGATIONS
卷 23, 期 2, 页码 739-746出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00784-018-2490-2
关键词
2-Methacryloyloxyethyl phosphorylcholine; Clinical study; Oral infection; Oral bacteria; Fusobacterium nucleatum
资金
- Japanese Society for the Promotion of Science (JSPS) KAKENHI [16 K21198]
- NOF corporation
ObjectivesThe biocompatible 2-methacryloyloxyethyl phosphorylcholine (MPC)-polymers, which mimic a biomembrane, reduce protein adsorption and bacterial adhesion and inhibit cell attachment. The aim of this study is to clarify whether MPC-polymer can suppress the bacterial adherence in oral cavity by a crossover design. We also investigated the number of Fusobacterium nucleatum, which is the key bacterium forming dental plaque, in clinical samples.Materials and methodsThis study was a randomized, placebo-controlled, single-blind, crossover study, with two treatment periods separated by a 2-week washout period. We conducted clinical trial with 20 healthy subjects to evaluate the effect of 5% MPC-polymer mouthwash after 5h on oral microflora. PBS was used as a control. The bacterial number in the gargling sample before and after intervention was counted by an electronic bacterial counter and a culture method. DNA amounts of total bacteria and F. nucleatum were examined by q-PCR.ResultsThe numbers of total bacteria and oral streptcocci after 5h of 5% MPC-polymer treatment significantly decreased, compared to the control group. Moreover, the DNA amounts of total bacteria and F. nucleatum significantly decreased by 5% MPC-polymer mouthwash.ConclusionsWe suggest that MPC-polymer coating in the oral cavity may suppress the oral bacterial adherence.Clinical relevanceMPC-polymer can be a potent compound for the control of oral microflora to prevent oral infection.
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