Comparison of laser and led in the process of healing cutaneous wounds: a review
DOI:
https://doi.org/10.15448/1983-652X.2016.1.21840Keywords:
wound healing, phototherapy, LASER.Abstract
Objective: The objective of this review was to present and compare the current scientific evidence on the therapeutic effects of low level LASER and LED in the cutaneous healing process through the analysis of experimental studies in rodents.
Materials and Methods: Literature review, carried out through a search in the Medline/PubMed and SciELO databases. Original and experimental articles available in full that aimed to compare the therapeutic LASER and LED effects on the skin healing process were selected. The keywords and boolean operators used to search the databases were: wound healing OR healing AND laser AND led. Articles published in English and Portuguese were included.
Results: From a total of 232 articles found, five studies were selected for this literature review. Year of publication ranged from 2007 to 2015. Three studies used LASERs and LEDs with red wavelengths (λ<700 nm) and two studies used both red and infrared spectra in the analyzed groups. Most of the studies conducted a protocol with at least two applications of LASER or LED through the contact technique. The energy density ranged from 2.5 J/cm2 to 40 J/cm2.
Conclusion: Despite the methodological variability in the researchers found, the results of these studies showed satisfactory histological and immunohistochemical outcomes, suggesting that these therapies can significantly facilitate the tissue repair process. However, further studies should be performed in order to establish safe and effective clinical strategies for the use of phototherapy in wound healing.
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