Journal of Oral Science Research ›› 2016, Vol. 32 ›› Issue (12): 1265-1268.DOI: 10.13701/j.cnki.kqyxyj.2016.12.010

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Comparison of Oral Microbial Diversity in Healthy People and Patients with Dental Caries and Periodontal Disease.

SHI Yan1, LI Chen-jie2, ZHANG Ming-zheng2, WANG Xin3, YANG Shao-Guo3, MENG Fan-Jin3, CHEN Ting-Tao3*, YANG Jian1*.   

  1. 1. Department of Endodontics,Stomatology Hospital of Nanchang University,Nanchang 330006,China;
    2. The Second Clinical Medical College, Nanchang University,Nanchang 330006,China;
    3. Institute of Translational Medicine, Nanchang University, Nanchang 330031, China.
  • Received:2016-08-03 Online:2016-12-25 Published:2016-12-26

Abstract: Objective: To compare the microbial diversity of healthy people and oral patients with high-throughput sequencing method and to provide basic data for curing dental caries and periodontal diseases. Methods: The patients with typical dental caries and periodontal diseases were selected. Their stimulated whole saliva and oropharyngeal samples were collected for high-throughput sequencing analysis and the microbial diversity among samples were analyzed using bioinformatics. Results: The Venn results indicated that a mean of 315 operational taxonomic units (OTUs) was obtained, and 73, 64,53, 19 and 18 common OTUs belonging to Firmicutes, Bacteroidetes, Proteobacteria, Actinobacteria and Fusobacteria were identified in healthy people. In addition, the relative richness results indicated that the Firmicute was reduced in children group and increased in youth group and adult group, while the Proteobacteria was increased in children group but reduced in youth group and adult group. Conclusion: The age bracket and oral disease had largely influenced the tooth development and microbial development in oral cavity, and the traditional "pathogenic bacteria" of Firmicutes, Proteobacteriaand Bacteroidetes might exert beneficial effects on oral health.

Key words: High-throughput sequencing analyses, Dental caries, Periodontal disease, Microbial diversity