Effects of photobiomodulation with blue Light Emitting Diode (LED) on the healing of skin burns.

The management of skin burns is still challenging. Among the therapeutic methods used, there are topical treatments with pharmacological and herbal agents, low-intensity therapeutic ultrasound, use of biomaterials, reconstructive techniques and photobiomodulation therapy. The aim of this study was to evaluate the effects of photobiomodulation with blue Light Emitting Diode (LED) on burn healing.

Randomized clinical trial comparing the violet light emitting diode system and other tooth whitening techniques.

Aim: to evaluate, through a clinical trial, the effectiveness and sensitivity of tooth whitening techniques using violet light emitting diodes (LED), comparing with other whitening techniques.

Methodology: 75 patients were selected to undergo tooth whitening, randomly distributed into five different treatment groups: G1 (35% hydrogen peroxide), G2 (35% hydrogen peroxide + Green LED), G3 (35% hydrogen peroxide at 35% + Blue LED), G4 (35% hydrogen peroxide + Violet LED) and G5 (Violet LED). Sensitivity measurement was recorded using the Visual Analogue Scale (VAS) from 0 to 10; tooth color measurement was performed before (T0) and after 30 days of whitening treatment (T1) using Easyshade Advance 4.

Effects of photobiomodulation therapy with red LED on inflammatory cells during the healing of skin burns.

The aim of this study was to evaluate the effects of red light emitting diode (LED) photobiomodulation therapy protocol on inflammatory cells during the healing of third-degree skin burns. Fifty Wistar rats were randomly divided into control group (CTRL) (n = 25) and red group (RED) (n = 25), with subgroups (n = 5) for each time of euthanasia (7, 14, 21, 28, and 32 days). Treatment animals were daily irradiated (630 nm ± 10 nm, 300 mW, 9 J/cm per point, 30 s, continuous emission mode) at the 4 angles of the wound (total: 36 J/cm).

Low-level laser therapy is effective in controlling postoperative pain in lower third molar extractions: a systematic review and meta-analysis.

This systematic review aimed to evaluate the effectiveness of low-level laser therapy in controlling postoperative pain in lower third molar extractions. A search was carried out in MEDLINE/PubMed, Web of Science and Cochrane Library (CENTRAL) databases, using the "low-level laser therapy", "photobiomodulation therapy", "impacted mandibular third molar", "mandibular third molar", "third molar extraction" descriptors and 2625 studies were found, including only randomized clinical trials published until July 2020, with no restrictions on language and country of study. Selected studies were submitted to initial screening based on the reading of titles, abstracts and full article, and duplicate studies were excluded.

Signs of the proximity of third molar roots to the mandibular canal: an observational study in panoramic radiographs.

The objectives of this study were to assess the relationship between mandibular third molars and the mandibular canal, establishing which radiographic signs are most prevalent in predicting contact between these structures, and to associate these signs and the proximity with the position of the third molar according to the classifications of Pell & Gregory and Winter. A retrospective, cross-sectional observational study was carried out on panoramic radiographs. From a dataset of 3289 images, a convenience sample of 1548 panoramic radiographs with a total of 2639 third molars was selected for evaluation.

Effect of blue LED on the healing process of third-degree skin burns: clinical and histological evaluation.

The aim of this study was to evaluate the effects of blue light-emitting diode (LED) on the healing process of third-degree skin burns in rats through clinical and histological parameters. Forty male Wistar rats were divided into two groups: control (CTR) (n = 20) and blue LED (BLUE) (n = 20), with subgroups (n = 5) for each time of euthanasia (7, 14, 21, and 28 days). LED (470 nm, 1 W, 12.

Effects of red laser, infrared, photodynamic therapy, and green LED on the healing process of third-degree burns: clinical and histological study in rats.

The aim of this study was to evaluate the effects of red laser, infrared, photodynamic therapy, and green light-emitting diode (LED) on the healing process of skin burns through clinical and histopathologic analysis in rats. For this, 100 animals were randomly divided into five groups: G1-untreated control (CTR), G2-red laser (LVER), G3-infrared (LINF), G4-photodynamic therapy (PDT), and G5-green LED. Burn was induced on the dorsum of the rat and the treatment of the experimental groups was red light (10 J/cm(2), 10 s, 40 mW, and λ660 nm), infrared (10 J/cm(2), 10 s, 40 mW, and λ780 nm), green LED irradiation (60 J/cm(2), 10 s, λ520, and 550 nm), and photodynamic therapy (10 J/cm(2), 40 mW, and λ660 nm), the latter combined with methylene blue photosensitizer at concentration 0.

Biostimulation effects of low-power laser in the repair process.

The wound healing process has always been an excellent subject for researchers. The use of low-power laser on wounds during the postoperative phase has increased the speed of the healing process. It has been implied that low power radiation affects cellular metabolic processes and promotes beneficial biological effects (analgesic, anti-inflammatory, and healing).