Catalysis-based approaches with biopolymers and violet LED to improve in-office dental bleaching
In conclusion, employing NS + PCP + LEDv to catalyze a 35%H2O2 bleaching gel applied for 15 min to the enamel resulted in successful esthetic improvements and reduced the cytotoxicity commonly linked with traditional in-office bleaching procedures. (Source: Lasers in Medical Science)
Source: Lasers in Medical Science - January 2, 2024 Category: Laser Surgery Source Type: research
Evaluation of the effect of high-intensity light-curing device on micro-leakage of pits and fissure sealants
This study aimed to compare the micro-leakage around the resin sealants when using both high and conventional intensity light-curing systems. The study sample consisted of 30 extracted human maxillary premolar teeth that were divided into two equal groups according to the light-curing system used: Group 1, High-Intensity Light-Curing System and Group 2, Conventional Light-Curing System. Light-curing by Woodpecker I-LED device with two intensities (high and conventional) has been used. All teeth were subjected to 500 cycles of thermocycling. Then, a methylene blue dye microleakage test was performed, and the teeth were sect...
Source: Lasers in Medical Science - December 30, 2023 Category: Laser Surgery Source Type: research
Laser ablation on vascular diseases: mechanisms and influencing factors
AbstractVascular diseases, such as venous insufficiency and coronary artery diseases, have been threatening the health of people. Efficient treatment with proper postoperative care is required to relieve the pain of the patients. Traditionally, venous insufficiency is treated with ligation and stripping, an open surgery whose complication rate cannot be ignored. Coronary artery disease is often treated with balloon angioplasty during which undilatable lesions may be encountered, limiting the efficacy of this approach. With advances in laser photonics and percutaneous coronary intervention procedure, laser ablation is emerg...
Source: Lasers in Medical Science - December 29, 2023 Category: Laser Surgery Source Type: research
Effects of photobiomodulation therapy on the functional performance of healthy individuals: a systematic review with meta-analysis
AbstractThe aim of this study is to assess the effect of photobiomodulation therapy (PBMT) on functional performance concerning strength, fatigue, and functional capacity in healthy individuals. This systematic review with meta-analysis involved searches on data platforms and active searches of randomized clinical trials, focusing on PBMT as the sole intervention. Primary outcomes assessed included strength, fatigue, and functional capacity. Three reviewers screened studies by title and abstract using Rayyan, and data were extracted using a specific form. Bias risk was assessed using RoB2, and confidence in the evidence wa...
Source: Lasers in Medical Science - December 27, 2023 Category: Laser Surgery Source Type: research
Debris generated by laser and/or balloon cause cerebral infarction with different severity
AbstractThe purpose of this study is to determine the effects that debris generated by laser and/or balloon on the brain. Debris generated by laser, balloon, and laser combined with balloon were collected and then injected into rats ’ left common carotid artery. Rats were divided into five groups: sham, saline, laser (L), balloon (B), and laser combined with balloon (LB). The cognition ability of rats was evaluated by Morris water maze. Cerebral blood flow (CBF) was examined by laser speckle. TTC staining and MRI scan were co nducted to detect cerebral ischemic infarction. Intracranial arteries in rats were visualized by...
Source: Lasers in Medical Science - December 23, 2023 Category: Laser Surgery Source Type: research
Complication rates and safety of pulsed dye laser treatment for port-wine stain: a systematic review and meta-analysis
AbstractPulsed dye laser (PDL) is the most commonly used method for port-wine stain (PWS); however, no studies have reported the safety of PDL. This review aimed to collect and summarize complications reported in relevant literature, assess complication rates in treating PWS with PDL, and explore the relevant influencing factors. A systematic review and meta-analysis were conducted to search for related studies in PubMed, Embase, and the Cochrane Library until August 2022. Two reviewers independently evaluated the risk of bias of included studies. Stata Software version 17.0 was used for the analysis. All complications rep...
Source: Lasers in Medical Science - December 23, 2023 Category: Laser Surgery Source Type: research
Laser treatment for adverse reactions to injectable facial filling: a systematic review
AbstractFacial filling is widespread in society, albeit associated with inherent risks. This review analyzes clinical studies using laser therapy for filler complications to assess its safety and efficacy as an alternative treatment. A literature search was conducted up until April 2023, encompassing five different databases: PubMed, Scopus, Embase, Web of Science, and Medline, to find clinical trials addressing patients who underwent laser treatment for adverse reactions to injectable facial filling. The outcome variables were the clinical assessment of the lesion and the occurrence of post-intervention complications/sequ...
Source: Lasers in Medical Science - December 22, 2023 Category: Laser Surgery Source Type: research
Intraocular pressure increase after Nd:YAG laser capsulotomy and anterior segment optical coherence tomography analysis
This study is to determine whether post-procedure intraocular pressure (IOP) increase is associated with the anterior chamber angle in cases of Neodymium: yttrium-aluminum garnet (Nd: YAG) laser capsulotomy. The study included 51 eyes with posterior capsule opacification. Initial IOP values of the patients were compared with IOP values without intraocular pressure-lowering administration at the end of the 1st hour, 1st day, 3rd day, and 7th day after Nd:YAG laser capsulotomy. The anterior segment angle configuration was evaluated using anterior segment optical coherence tomography analysis without dilatation before the pro...
Source: Lasers in Medical Science - December 22, 2023 Category: Laser Surgery Source Type: research
Application of a physiotherapeutic protocol associated with photobiomodulation for the treatment of leprosy patients
In conclusion, this study demonstrated that combining a physiother apeutic protocol with PBM treatment effectively improved functional status and reduced pain in leprosy patients. (Source: Lasers in Medical Science)
Source: Lasers in Medical Science - December 22, 2023 Category: Laser Surgery Source Type: research
Effect of various photobiomodulation regimens on breast cancer-related lymphedema: A systematic review and meta-analysis
AbstractBreast cancer-related lymphedema (BCRL) is common among patients who have completed their cancer treatment. Although low-level laser therapy (LLLT) has been explored as a treatment option for BCRL, we could not find a regimen that is more effective than others. This meta-analysis aimed to organize existing research and determine the optimal combination of LLLT parameters for BCRL treatment. Studies were collected from four online databases: Embase, Ovid Medline, Cochrane, and Cinahl. The collected studies were reviewed by two of the authors. We focused on the aspects of the treatment area, treatment regimen, and to...
Source: Lasers in Medical Science - December 22, 2023 Category: Laser Surgery Source Type: research
The Photobiomodulation effect of 980 nm Diode Laser on Patients with Xerostomia
ConclusionIn this study, the volume and weight of the unstimulated saliva in most patients with xerostomia increased with using PBM. (Source: Lasers in Medical Science)
Source: Lasers in Medical Science - December 20, 2023 Category: Laser Surgery Source Type: research
An evaluation of photobiomodulation effects on human gingival fibroblast cells under hyperglycemic condition: an in vitro study
AbstractAn in vitro study was designed to evaluate the effects of photobiomodulation (PBM) with 915-nm diode laser on human gingival fibroblast (HGF) cells under hyperglycemic condition. The HGF cells were cultured in Dulbecco ’s modified eagle medium (DMEM) medium containing 30 mM glucose concentration for 48 h to mimic the hyperglycemic condition. Subsequently, the cells received three sessions of PBM (915 nm, continuous emission mode, 200 mW, energy density values of 3.2, 6, and 9.2 J/cm2). Twenty-four hours post-irradiation, cell proliferation, expression of interleukin 6 (IL-6), and vascular endothelial growth f...
Source: Lasers in Medical Science - December 19, 2023 Category: Laser Surgery Source Type: research
Picosecond lasers in cosmetic dermatology: where are we now? An overview of types and indications
AbstractQ-switched lasers have undeniably revolutionized the field of laser dermatology since four decades ago. Just as the first-generation laser emits its photonic signal in a few nanoseconds, the picosecond laser delivers pulse widths of at least ten times shorter. These devices offer a powerful tool for treating a wide range of skin conditions with a minimal downtime for visible improvement. For the current study, a literature research was performed on the dermatological applications of picosecond laser. The literature searched on this topic between 1999 and 2023 accessible through various platforms produce a result of...
Source: Lasers in Medical Science - December 18, 2023 Category: Laser Surgery Source Type: research
Q-switched Nd:YAG laser protects human keratinocytes from oxidative stress and inflammation via AhR –Nrf2 pathway
AbstractIn recent years, some treatments for esthetic and pathologic skin conditions have increasingly been based on the use of non-ablative neodymium-doped yttrium aluminum garnet (Nd:YAG) laser due to its greater penetration ability than other types of lasers, few contraindications, minimal side effects, no damage for epidermidis and the rapid recovery of the treated patients. The skin is frequently exposed to many stressors such as radiation, toxic substances, metabolites, foods, mechanical insults, and allergen exposition that cause oxidative damage and have a decisive influence on the aging process. The imbalance betw...
Source: Lasers in Medical Science - December 15, 2023 Category: Laser Surgery Source Type: research
The thermal effect of lasers in urology: a review article
AbstractLasers as a technology have a leading role in the modern urological treatment armamentarium. In this article, the application of lasers in different areas of urology is described. The major uses are in urolithiasis, benign prostatic enlargement (BPE), and management of many urological malignancies and other benign pathologies. Lasers have become an established treatment modality in urolithiasis, an acceptable alternative with the least side effect profile in BPE patients, and a novel and promising therapy in many other fields of Urology. (Source: Lasers in Medical Science)
Source: Lasers in Medical Science - December 14, 2023 Category: Laser Surgery Source Type: research
