Abstract
Although it is well-known that variations of the microbial community in a specific location of human body may be associated with some diseases, the developing change of the oral microbiota related to oral diseases before and after wearing the removable partial dentures (RPD) is not completely understood. In this study, three kinds of samples (saliva, supra- and subgingival plaque, and oral mucosal surfaces) were collected from the 10-patients group at three different times: before, 1-month and 6-months after the treatment. Ten healthy adults were also selected as the control group. Denaturing gradient gel electrophoresis was applied to identify the bacterial profiles and to analyze the dynamics of the oral microbial population in the pre- and post-therapy. The ANOVA of Repeated Measurement Data indicated that, in the saliva and mucosal surfaces, wearing RPDs caused significant change of numbers of amplicons. As many as 607 amplicons were chosen to cut out and re-amplify by PCR. After cloning and sequencing, a total of 16 bacterial genera were identified. The health-associated genera such as Streptococcus, Neisseria, Rothia, Corynebacterium, Leptotrichia, Gemella, Veillonella, Selenomona and Actinomyces tended to decrease, whereas the disease-associated species including Streptococcus mutans tended to increase. In general, wearing RPDs influenced the diversity of the bacterial species in the oral microbial ecosystem. It is noteworthy that the oral environment will be changed from the healthy status towards the disease status after the treatment.
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Abbreviations
- ANOVA:
-
Analysis of variance
- BLAST:
-
Basic local alignment search tool
- Co–Cr:
-
Cobalt–chromium
- DGGE:
-
Denaturing gradient gel electrophoresis
- PBS:
-
Phosphate buffered saline
- RPD:
-
Removable partial denture
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (20877028), the Special Grade of the Financial Support from China Postdoctoral Science Foundation (200902327) and the Fundamental Research Funds for the Central Universities, SCUT (2009ZM0224).
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Xiao Zhu and Shaohai Wang contributed equally to this work.
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Zhu, X., Wang, S., Gu, Y. et al. Possible variation of the human oral bacterial community after wearing removable partial dentures by DGGE. World J Microbiol Biotechnol 28, 2229–2236 (2012). https://doi.org/10.1007/s11274-012-1030-5
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DOI: https://doi.org/10.1007/s11274-012-1030-5