DOI:

10.37988/1811-153X_2022_4_137

A comparative assessment of the results of the biological response of the oral mucosa on the effect of laser radiation with a wavelength of 445 nm and 810 nm

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Authors

  • N.V. Romanenko 1, PhD in Medical Sciences, associate professor of the Surgical dentistry Department
    ORCID: 0000-0002-5846-5578
  • S.V. Tarasenko 1, PhD in Medical Sciences, full professor of the Maxillofacial surgery Department
    ORCID: 0000-0001-8595-8864
  • N.B. Serezhnikova 1, PhD in Biology, senior researcher at the BioBank of the Institute for Regenerative Medicine
    ORCID: 0000-0002-4097-1552
  • A.B. Shekhter 1, PhD in Biology, full professor, chief researcher of the BioBank of the Institute for Regenerative Medicine
    ORCID: 0000-0003-2914-318X
  • A.Y. Suvorov 1, PhD in Medical Sciences, chief medical statistician
    ORCID: 0000-0002-2224-0019
  • S.V. Djidjavadze 1, clinical resident of the Surgical dentistry Department
    ORCID: 0000-0002-5220-6049
  • A.A. Derevyankin 1, clinical resident of the Surgical dentistry Department
    ORCID: 0000-0003-0408-0936
  • 1 Sechenov University, 119435, Moscow, Russia

Abstract

Currently, russian and foreign manufacturers of medical equipment present an innovative laser technology involving preparation of soft tissues by non-contact method. Laser radiation with a wavelength of 445 nm is generated by a diode semiconductor and corresponds to the blue color of the visible light spectrum. The scientific justification of the effectiveness of blue laser as an alteration tool in surgical dentistry is relevant. The aim of the study is to study morphological changes of intact oral mucosa when exposed to laser radiation of 445 nm wavelength. >. Peculiarities of the biological response of the oral mucosa to alteration formed by laser radiation with a wavelength of 445±40 nm were studied. The objects of the study were 24 sexually mature laboratory rats weighing from 180 to 250 grams. In the main group (12 rats), a linear incision of the mucous membrane was made using a 445 nm laser in a non-contact mode at the 0.7 W emission power in a continuous mode using uninitiated fiber. The comparison group was the samples of the oral mucous membrane with the defect formed by exposure to 810 nm laser by contact method at the power of 0.7 W in the pulsed mode and using initiated fiber. >. According to the histological picture, the preparation of the oral mucosa of laboratory animals by non-contact method and 445 nm laser emission caused less tissue damage in comparison to the contact method and 810 nm laser. >. The results of histological study indicate the safety of blue laser emission and its advantage over the infrared laser.

Key words:

diode laser, laser radiation, 445 nm, histological examination, blue laser

For Citation

[1]
Romanenko N.V., Tarasenko S.V., Serezhnikova N.B., Shekhter A.B., Suvorov A.Y., Djidjavadze S.V., Derevyankin A.A. A comparative assessment of the results of the biological response of the oral mucosa on the effect of laser radiation with a wavelength of 445 nm and 810 nm. Clinical Dentistry (Russia).  2022; 25 (4): 137—143. DOI: 10.37988/1811-153X_2022_4_137

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Received

August 21, 2022

Accepted

October 22, 2022

Published on

December 21, 2022