Клиническая практика (Jan 2025)
Determining the efficiency of low-intensity laser radiation exposure with a wavelength of 445 nm appliied to the gingival area according to the data from laser doppler flowmetry
Abstract
BACKGROUND: Currently, the list of diode semiconductor lasers in surgical dental practice is expanded due to the development of the blue laser. The topical issue is the evaluation of the effects of laser radiation with a wavelength of 445 nm on the microcirculation of oral cavity mucosa. AIM: to assess the effects of 445 nm laser radiation with a 0.1 Watt power on the microcirculation and the lymphatic flow in the gingival area using the method of laser Doppler flowmetry. METHODS: The efficiency of laser radiation with a wavelength of 445 nm in the gingival area was determined by the data from laser Doppler flowmetry. Dynamic changes of the basal circulation and basal lymphatic flow in the area of the attached keratinized gingiva in the teeth of the mandible were evaluated in healthy volunteers: the numerical values obtained for the microcirculation were measured along with its variability and the coefficient of variation before and after laser therapy. Statistical analysis and visualization of the obtained data were performed using the R 4.4.2 statistical calculations medium. RESULTS: In a total of 20 volunteers, the method of laser Doppler flowmetry has shown a significant increase of the microcirculation values in the gingival tissues upon the exposure of the laser radiation with a wavelength of 445 nm to the gingiva (gum). CONCLUSION: An increase of the circulation rates in the gingival tissues upon the exposure of the low-intensity laser radiation with a wavelength of 445 nm indicates the presence of a therapeutic effect caused by the blue laser. The procedures of preventing the diseases of the parodontal tissues are recommended to be supplemented by photobiomodulation with using the blue laser technology at a power of 0.1 W.
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