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Electric Pulp Testing Evaluation of Dental Anesthesia After 660-nm Laser-Photoiomodulation Therapy: Results of a Double-Blind Randomized, Placebo-Controlled Clinical Trial

Received: 30 June 2023    Accepted: 24 July 2023    Published: 5 August 2023
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Abstract

Background: For many years, injection of chemical solutions of anesthesia are well-known conventional method in dental practice. To date, various complications have known to be caused by this injection as well as the high extent of anxiety and fear that have shown to be related with this procedure. By the most recently, introduction of photobiomodulation therapy (PBMT) in the field of laser dentistry, many efforts have been made to evaluate the state of PBMT- anesthesia on different laser parameters. Objectives: This double blinded randomized clinical trial aims at evaluating the efficacy of PBMT with 660nm diode laser on elevation of post-treatment electric pulp testing (EPT) scores representing as an anesthesia, in contralateral healthy premolars. Methods and Materials: 19 participants have included in this study according to the inclusion criteria. Each participant had two caries-free healthy contralateral maxillary first premolars, of which one was chosen randomly to be treated with sham (placebo) irradiation or laser treatment (Diode laser, 660nm, 200 mW, 12 J/cm2, 30s). The EPT scores were evaluated two minutes before the laser/placebo treatment and right after the treatment. Results: 14 out of 19 (73.68%) sites which received laser treatment, showed more than 20% increase in EPT value, while in the placebo group 11 out of 19 (57.89%) sites that were treated with sham irradiation showed less than 20% change in EPT values after treatment. Therefore, there was a significant difference in EPT responses between the laser and placebo treatment groups (fisher’s exact=0.106, p-value=0.047). Besides, the regression coefficients of post and pre-treatment EPT scores of laser and placebo treatment groups were 0.4 (p-value=0.008) and 0.98 (p-value=0.008), respectively. No gender differences were found regarding the EPT responses. Conclusion: The diode laser, 660nm PBMT with the given protocol can effectively induce a pulpal anesthesia, while further studies should elucidate the precise mechanism of its action and the capacity for its clinical applicability in dental practice.

Published in International Journal of Anesthesia and Clinical Medicine (Volume 11, Issue 2)
DOI 10.11648/j.ijacm.20231102.15
Page(s) 76-81
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), 2024. Published by Science Publishing Group

Keywords

Photobiomodulation Therapy, Electric Pulp Testing, Anesthesia

References
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    Arash Ebrahimi, Iman Sokouti Emamzade Hashemi, Mohsen Ramazani. (2023). Electric Pulp Testing Evaluation of Dental Anesthesia After 660-nm Laser-Photoiomodulation Therapy: Results of a Double-Blind Randomized, Placebo-Controlled Clinical Trial. International Journal of Anesthesia and Clinical Medicine, 11(2), 76-81. https://doi.org/10.11648/j.ijacm.20231102.15

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    ACS Style

    Arash Ebrahimi; Iman Sokouti Emamzade Hashemi; Mohsen Ramazani. Electric Pulp Testing Evaluation of Dental Anesthesia After 660-nm Laser-Photoiomodulation Therapy: Results of a Double-Blind Randomized, Placebo-Controlled Clinical Trial. Int. J. Anesth. Clin. Med. 2023, 11(2), 76-81. doi: 10.11648/j.ijacm.20231102.15

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    AMA Style

    Arash Ebrahimi, Iman Sokouti Emamzade Hashemi, Mohsen Ramazani. Electric Pulp Testing Evaluation of Dental Anesthesia After 660-nm Laser-Photoiomodulation Therapy: Results of a Double-Blind Randomized, Placebo-Controlled Clinical Trial. Int J Anesth Clin Med. 2023;11(2):76-81. doi: 10.11648/j.ijacm.20231102.15

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  • @article{10.11648/j.ijacm.20231102.15,
      author = {Arash Ebrahimi and Iman Sokouti Emamzade Hashemi and Mohsen Ramazani},
      title = {Electric Pulp Testing Evaluation of Dental Anesthesia After 660-nm Laser-Photoiomodulation Therapy: Results of a Double-Blind Randomized, Placebo-Controlled Clinical Trial},
      journal = {International Journal of Anesthesia and Clinical Medicine},
      volume = {11},
      number = {2},
      pages = {76-81},
      doi = {10.11648/j.ijacm.20231102.15},
      url = {https://doi.org/10.11648/j.ijacm.20231102.15},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijacm.20231102.15},
      abstract = {Background: For many years, injection of chemical solutions of anesthesia are well-known conventional method in dental practice. To date, various complications have known to be caused by this injection as well as the high extent of anxiety and fear that have shown to be related with this procedure. By the most recently, introduction of photobiomodulation therapy (PBMT) in the field of laser dentistry, many efforts have been made to evaluate the state of PBMT- anesthesia on different laser parameters. Objectives: This double blinded randomized clinical trial aims at evaluating the efficacy of PBMT with 660nm diode laser on elevation of post-treatment electric pulp testing (EPT) scores representing as an anesthesia, in contralateral healthy premolars. Methods and Materials: 19 participants have included in this study according to the inclusion criteria. Each participant had two caries-free healthy contralateral maxillary first premolars, of which one was chosen randomly to be treated with sham (placebo) irradiation or laser treatment (Diode laser, 660nm, 200 mW, 12 J/cm2, 30s). The EPT scores were evaluated two minutes before the laser/placebo treatment and right after the treatment. Results: 14 out of 19 (73.68%) sites which received laser treatment, showed more than 20% increase in EPT value, while in the placebo group 11 out of 19 (57.89%) sites that were treated with sham irradiation showed less than 20% change in EPT values after treatment. Therefore, there was a significant difference in EPT responses between the laser and placebo treatment groups (fisher’s exact=0.106, p-value=0.047). Besides, the regression coefficients of post and pre-treatment EPT scores of laser and placebo treatment groups were 0.4 (p-value=0.008) and 0.98 (p-value=0.008), respectively. No gender differences were found regarding the EPT responses. Conclusion: The diode laser, 660nm PBMT with the given protocol can effectively induce a pulpal anesthesia, while further studies should elucidate the precise mechanism of its action and the capacity for its clinical applicability in dental practice.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Electric Pulp Testing Evaluation of Dental Anesthesia After 660-nm Laser-Photoiomodulation Therapy: Results of a Double-Blind Randomized, Placebo-Controlled Clinical Trial
    AU  - Arash Ebrahimi
    AU  - Iman Sokouti Emamzade Hashemi
    AU  - Mohsen Ramazani
    Y1  - 2023/08/05
    PY  - 2023
    N1  - https://doi.org/10.11648/j.ijacm.20231102.15
    DO  - 10.11648/j.ijacm.20231102.15
    T2  - International Journal of Anesthesia and Clinical Medicine
    JF  - International Journal of Anesthesia and Clinical Medicine
    JO  - International Journal of Anesthesia and Clinical Medicine
    SP  - 76
    EP  - 81
    PB  - Science Publishing Group
    SN  - 2997-2698
    UR  - https://doi.org/10.11648/j.ijacm.20231102.15
    AB  - Background: For many years, injection of chemical solutions of anesthesia are well-known conventional method in dental practice. To date, various complications have known to be caused by this injection as well as the high extent of anxiety and fear that have shown to be related with this procedure. By the most recently, introduction of photobiomodulation therapy (PBMT) in the field of laser dentistry, many efforts have been made to evaluate the state of PBMT- anesthesia on different laser parameters. Objectives: This double blinded randomized clinical trial aims at evaluating the efficacy of PBMT with 660nm diode laser on elevation of post-treatment electric pulp testing (EPT) scores representing as an anesthesia, in contralateral healthy premolars. Methods and Materials: 19 participants have included in this study according to the inclusion criteria. Each participant had two caries-free healthy contralateral maxillary first premolars, of which one was chosen randomly to be treated with sham (placebo) irradiation or laser treatment (Diode laser, 660nm, 200 mW, 12 J/cm2, 30s). The EPT scores were evaluated two minutes before the laser/placebo treatment and right after the treatment. Results: 14 out of 19 (73.68%) sites which received laser treatment, showed more than 20% increase in EPT value, while in the placebo group 11 out of 19 (57.89%) sites that were treated with sham irradiation showed less than 20% change in EPT values after treatment. Therefore, there was a significant difference in EPT responses between the laser and placebo treatment groups (fisher’s exact=0.106, p-value=0.047). Besides, the regression coefficients of post and pre-treatment EPT scores of laser and placebo treatment groups were 0.4 (p-value=0.008) and 0.98 (p-value=0.008), respectively. No gender differences were found regarding the EPT responses. Conclusion: The diode laser, 660nm PBMT with the given protocol can effectively induce a pulpal anesthesia, while further studies should elucidate the precise mechanism of its action and the capacity for its clinical applicability in dental practice.
    VL  - 11
    IS  - 2
    ER  - 

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Author Information
  • Medical Faculty, RWTH Aachen University, Aachen, Germany

  • Department of Endodontics, Faculty of Dentistry, Guilan University of Medical Sciences, Rasht, Iran

  • Education Development Center, Mazandaran University of Medical Sciences, Sari, Iran

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