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Low-level laser therapy with 940 nm diode laser on stability of dental implants: a randomized controlled clinical trial

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Abstract

Low-level laser therapy (LLLT) is a non-invasive modality to promote osteoblastic activity and tissue healing. The aim of this study was to evaluate the efficacy of LLLT for improvement of dental implant stability. This randomized controlled clinical trial was performed on 80 dental implants placed in 19 patients. Implants were randomly divided into two groups (n = 40). Seven sessions of LLLT (940 nm diode laser) were scheduled for the test group implants during 2 weeks. Laser was irradiated to the buccal and palatal sides. The same procedure was performed for the control group implants with laser hand piece in “off” mode. Implant stability was measured by Osstell Mentor device in implant stability quotient (ISQ) value immediately after surgery and 10 days and 3, 6, and 12 weeks later. Repeated measures ANOVA was used to compare the mean ISQ values (implant stability) in the test and control groups. Statistical test revealed no significant difference in the mean values of implant stability between the test and control groups over time (P = 0.557). Although the mean values of implant stability changed significantly in both groups over time (P < 0.05). Although the trend of reduction in stability was slower in the laser group in the first weeks and increased from the 6th to 12th week, LLLT had no significant effect on dental implant stability.

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Acknowledgements

The authors would like to thank the Dental Research Center, Vice Chancellor of Research, Hamadan University of Medical Sciences, and Barman Teb Co. (Hamedan, Iran) for supporting this study.

Funding source

This study was funded by Vice Chancellor of Research of Hamadan University of Medical Sciences (grant number: 171).

Author information

Authors and Affiliations

  1. Dental Research Center, Department of Periodontics, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran

    Parviz Torkzaban

  2. Department of Restorative Dentistry, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran

    Shahin Kasraei

  3. Department of Periodontics, Dental School, Zanjan University of Medical Sciences, Zanjan, Iran

    Sara Torabi

  4. Modeling of Noncommunicable Disease Research Center, Department of Biostatistics, Hamadan University of Medical Sciences, Hamadan, Iran

    Maryam Farhadian

Authors
  1. Parviz Torkzaban
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  2. Shahin Kasraei
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Correspondence to Shahin Kasraei.

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The authors declare that they have no conflict of interest.

Ethical approval

The research protocol was approved by the Institutional Ethics Committee of the Vice Chancellor of Research, Hamadan University of Medical Sciences (protocol No: 2015-16p 372) and have been performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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Torkzaban, P., Kasraei, S., Torabi, S. et al. Low-level laser therapy with 940 nm diode laser on stability of dental implants: a randomized controlled clinical trial. Lasers Med Sci 33, 287–293 (2018). https://doi.org/10.1007/s10103-017-2365-9

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  • DOI: https://doi.org/10.1007/s10103-017-2365-9

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