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Experimental Study on the Inhibitory Effect of HMME-PDT on the Cariogenic Bacteria in Dental Plaque Biofilms of Rats

Received: 23 September 2019     Accepted: 4 November 2019     Published: 25 November 2019
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Abstract

Object: To investigate the inhibitory effect of HMME-PDT on the cariogenic bacteria we designed different photosensitizer concentration and different lighting time. Therefore, we determined the optimal photosensitizer parameters and time parameters. Besides we explored the advantages of HMME-PDT in inhibiting the cariogenic bacteria in dental plaque biofilms of rats. We provided theoretical and experi- mental basis for the application of PDT for dental caries prevention. Method: The caries model was constructed with Wistar rats. We grouped the rats in accordance with the principle of randomization. We used the above two methods to evaluate the inhibitory effect of HMME-PDT on the cariogenic bacteria in dental plaque biofilms of rats. Results: 1. The bacteriostatic effect of HMME-PDT on bacterial plaque in rat oral cavity was studied in different concentration of photosensitizer. The tablet colony count results showed with the increase of concentration of photosensitizer stress the bacteria inhibitive rate was increased. Compared to the negative control group and positive control group, group E1 changed most obviously. 2. The bacteriostatic effect of HMME-PDT on bacterial plaque in rat oral cavity was studied in different exposure time. The tablet colony count results showed with the increase of exposure time the bacteria inhibitive rate was increased. Compared to the negative control group and positive control group, group E2 changed most obviously. 3. Results of the calcium ion dissolution detected by atomic absorption spectrophotometer showed with the increase of exposure time the calcium ion dissolution was increased in each group in 48 hours. Compared to the negative control group, the calcium ion dissolution of each group was decreased significantly (P<0.05). Compared to the positive control group, the calcium ion dissolution of each group was decreased significantly (P<0.05). Conclusion: Photodynamic therapy can effectively inhibit the production of caries in the biofilm of rats and reduce calcium ion solubility in early caries.

Published in European Journal of Clinical and Biomedical Sciences (Volume 5, Issue 5)
DOI 10.11648/j.ejcbs.20190505.11
Page(s) 66-72
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Photodynamic Therapy, Dental Caries, Plaque Biofilm

References
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    Xue Liu, Yadong Tao, Xuehai Wang, Meihui Yang, Hongjie Guo, et al. (2019). Experimental Study on the Inhibitory Effect of HMME-PDT on the Cariogenic Bacteria in Dental Plaque Biofilms of Rats. European Journal of Clinical and Biomedical Sciences, 5(5), 66-72. https://doi.org/10.11648/j.ejcbs.20190505.11

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    ACS Style

    Xue Liu; Yadong Tao; Xuehai Wang; Meihui Yang; Hongjie Guo, et al. Experimental Study on the Inhibitory Effect of HMME-PDT on the Cariogenic Bacteria in Dental Plaque Biofilms of Rats. Eur. J. Clin. Biomed. Sci. 2019, 5(5), 66-72. doi: 10.11648/j.ejcbs.20190505.11

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    AMA Style

    Xue Liu, Yadong Tao, Xuehai Wang, Meihui Yang, Hongjie Guo, et al. Experimental Study on the Inhibitory Effect of HMME-PDT on the Cariogenic Bacteria in Dental Plaque Biofilms of Rats. Eur J Clin Biomed Sci. 2019;5(5):66-72. doi: 10.11648/j.ejcbs.20190505.11

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  • @article{10.11648/j.ejcbs.20190505.11,
      author = {Xue Liu and Yadong Tao and Xuehai Wang and Meihui Yang and Hongjie Guo and Feng Huo},
      title = {Experimental Study on the Inhibitory Effect of HMME-PDT on the Cariogenic Bacteria in Dental Plaque Biofilms of Rats},
      journal = {European Journal of Clinical and Biomedical Sciences},
      volume = {5},
      number = {5},
      pages = {66-72},
      doi = {10.11648/j.ejcbs.20190505.11},
      url = {https://doi.org/10.11648/j.ejcbs.20190505.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ejcbs.20190505.11},
      abstract = {Object: To investigate the inhibitory effect of HMME-PDT on the cariogenic bacteria we designed different photosensitizer concentration and different lighting time. Therefore, we determined the optimal photosensitizer parameters and time parameters. Besides we explored the advantages of HMME-PDT in inhibiting the cariogenic bacteria in dental plaque biofilms of rats. We provided theoretical and experi- mental basis for the application of PDT for dental caries prevention. Method: The caries model was constructed with Wistar rats. We grouped the rats in accordance with the principle of randomization. We used the above two methods to evaluate the inhibitory effect of HMME-PDT on the cariogenic bacteria in dental plaque biofilms of rats. Results: 1. The bacteriostatic effect of HMME-PDT on bacterial plaque in rat oral cavity was studied in different concentration of photosensitizer. The tablet colony count results showed with the increase of concentration of photosensitizer stress the bacteria inhibitive rate was increased. Compared to the negative control group and positive control group, group E1 changed most obviously. 2. The bacteriostatic effect of HMME-PDT on bacterial plaque in rat oral cavity was studied in different exposure time. The tablet colony count results showed with the increase of exposure time the bacteria inhibitive rate was increased. Compared to the negative control group and positive control group, group E2 changed most obviously. 3. Results of the calcium ion dissolution detected by atomic absorption spectrophotometer showed with the increase of exposure time the calcium ion dissolution was increased in each group in 48 hours. Compared to the negative control group, the calcium ion dissolution of each group was decreased significantly (P<0.05). Compared to the positive control group, the calcium ion dissolution of each group was decreased significantly (P<0.05). Conclusion: Photodynamic therapy can effectively inhibit the production of caries in the biofilm of rats and reduce calcium ion solubility in early caries.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Experimental Study on the Inhibitory Effect of HMME-PDT on the Cariogenic Bacteria in Dental Plaque Biofilms of Rats
    AU  - Xue Liu
    AU  - Yadong Tao
    AU  - Xuehai Wang
    AU  - Meihui Yang
    AU  - Hongjie Guo
    AU  - Feng Huo
    Y1  - 2019/11/25
    PY  - 2019
    N1  - https://doi.org/10.11648/j.ejcbs.20190505.11
    DO  - 10.11648/j.ejcbs.20190505.11
    T2  - European Journal of Clinical and Biomedical Sciences
    JF  - European Journal of Clinical and Biomedical Sciences
    JO  - European Journal of Clinical and Biomedical Sciences
    SP  - 66
    EP  - 72
    PB  - Science Publishing Group
    SN  - 2575-5005
    UR  - https://doi.org/10.11648/j.ejcbs.20190505.11
    AB  - Object: To investigate the inhibitory effect of HMME-PDT on the cariogenic bacteria we designed different photosensitizer concentration and different lighting time. Therefore, we determined the optimal photosensitizer parameters and time parameters. Besides we explored the advantages of HMME-PDT in inhibiting the cariogenic bacteria in dental plaque biofilms of rats. We provided theoretical and experi- mental basis for the application of PDT for dental caries prevention. Method: The caries model was constructed with Wistar rats. We grouped the rats in accordance with the principle of randomization. We used the above two methods to evaluate the inhibitory effect of HMME-PDT on the cariogenic bacteria in dental plaque biofilms of rats. Results: 1. The bacteriostatic effect of HMME-PDT on bacterial plaque in rat oral cavity was studied in different concentration of photosensitizer. The tablet colony count results showed with the increase of concentration of photosensitizer stress the bacteria inhibitive rate was increased. Compared to the negative control group and positive control group, group E1 changed most obviously. 2. The bacteriostatic effect of HMME-PDT on bacterial plaque in rat oral cavity was studied in different exposure time. The tablet colony count results showed with the increase of exposure time the bacteria inhibitive rate was increased. Compared to the negative control group and positive control group, group E2 changed most obviously. 3. Results of the calcium ion dissolution detected by atomic absorption spectrophotometer showed with the increase of exposure time the calcium ion dissolution was increased in each group in 48 hours. Compared to the negative control group, the calcium ion dissolution of each group was decreased significantly (P<0.05). Compared to the positive control group, the calcium ion dissolution of each group was decreased significantly (P<0.05). Conclusion: Photodynamic therapy can effectively inhibit the production of caries in the biofilm of rats and reduce calcium ion solubility in early caries.
    VL  - 5
    IS  - 5
    ER  - 

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Author Information
  • University Health Service, Chengde Medical University, Chengde, China

  • Department of Dental, The Affiliated Hospital of Chengde Medical University, Chengde, China

  • University Health Service, Chengde Medical University, Chengde, China

  • University Health Service, Chengde Medical University, Chengde, China

  • University Health Service, Chengde Medical University, Chengde, China

  • Department of Dental, The Affiliated Hospital of Chengde Medical University, Chengde, China

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