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Low level laser therapy

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https://www.readbyqxmd.com/read/29643585/electromyographic-evaluation-of-a-low-level-laser-protocol-for-the-treatment-of-temporomandibular-disorder-a-randomized-controlled-blind-trial
#1
Camila Haddad Leal de Godoy, Lara Jansiski Motta, Eugenio Jose Garcia, Kristianne Porta Santos Fernandes, Raquel Agnelli Mesquita-Ferrari, Ravana Angelini Sfalcin, Pamella de Barros Motta, Fabiano Politti, Sandra Kalil Bussadori
[Purpose] Problems involving the temporomandibular joint and associated structures can lead to temporomandibular disorder (TMD). The aim of the present study was to evaluate muscle activity in individuals with a diagnosis of TMD before and after treatment with low-level laser therapy (LLLT) through the use of electromyography (EMG). [Subjects and Methods] Male and female individuals aged 14 to 23 years were evaluated. TMD was determined by a clinical examination and the administration of the Research Diagnostic Criteria for Temporomandibular Disorders, followed by the evaluation of sensitivity to palpation of the masseter and anterior temporal muscles as well as the EMG determination of muscle activity...
December 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29642437/photodynamic-effect-of-methylene-blue-and-low-level-laser-radiation-in-head-and-neck-squamous-cell-carcinoma-cell-lines
#2
Barbara Kofler, Angela Romani, Christian Pritz, Teresa Bernadette Steinbichler, Volker Hans Schartinger, Herbert Riechelmann, Jozsef Dudas
Photodynamic therapy (PDT) is suggested to have an impact on the treatment of early stage head and neck cancers (HNSCC). We investigated the effect of PDT with methylene blue (MB) and a diode laser (660 nm) as the laser source on HNSCC cell lines as an in vitro model of surface oral squamous cell carcinoma. Cell-cultures were exposed to 160 µM MB for 4 min and to laser light for 8 min. Viability was proven via cell viability assay and clonogenic survival via clone counting assay. The combination of MB and diode laser evidenced high efficient loss of cell viability by 5% of the control, while treatment with the same concentration of MB for 4 min alone showed a viability of 46% of the control...
April 7, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29627888/the-effect-of-high-intensity-versus-low-level-laser-therapy-in-the-management-of-plantar-fasciitis-a-randomized-clinical-trial
#3
Banu Ordahan, Ali Yavuz Karahan, Ercan Kaydok
We aimed to compare the efficacy of low-level laser therapy (LLLT) and high-intensity laser therapy (HILT) in the treatment of plantar fasciitis (PF). Seventy patients were randomized into either the LLLT (8 men, 27 women; mean age 48.65 ± 10.81 years) or HILT (7 men, 28 women; mean age 48.73 ± 11.41 years) groups. LLLT (904 nm) and HILT (1064 nm) were performed three times per week, over a period of 3 weeks. Each treatment combined with silicone insole and stretching exercises. Patients' pain and functional status were evaluated with Visual Analog Scale, Heel Tenderness Index, and Foot and Ankle Outcome Score before and after treatment...
April 7, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29625455/release-of-different-cell-mediators-during-retinal-pigment-epithelium-regeneration-following-selective-retina-therapy
#4
Elisabeth Richert, Stefan Koinzer, Jan Tode, Kerstin Schlott, Ralf Brinkmann, Jost Hillenkamp, Alexa Klettner, Johann Roider
Purpose: To investigate the effect of selective retina therapy (SRT) on the release of AMD-relevant cell mediators, such as matrix metalloproteinases (MMPs), VEGF, and pigment epithelium derived factor (PEDF) using different laser spot sizes and densities. Methods: Porcine RPE-choroid explants were treated with a pulsed 532 nm Nd:YAG laser using (1) large spot sizes, (2) small spot sizes with a high-density (hd) treatment, and (3) small spot sizes with a low-density (ld) treatment...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29623521/high-doses-of-laser-phototherapy-can-increase-proliferation-in-melanoma-stromal-connective-tissue
#5
Lúcio Frigo, Joseli Maria Cordeiro, Giovani Marino Favero, Durnavei Augusto Maria, Ernesto Cesar Pinto Leal-Junior, Jon Joensen, Jan Magnus Bjordal, Denise Carvalho Roxo, Rodrigo Labat Marcos, Rodrigo Alvaro Brandão Lopes-Martins
It is well established that laser phototherapy (LP) is contraindicated directly over cancer cells, due to its bio modulatory effects in cell and blood vessel proliferation. The aim of the present study was to analyze the influence of typical low-level laser therapy (LLLT) and high intensity laser therapy (HILT) and an in-between dose of 9 J on collagen fibers and blood vessels content in melanoma tumors (B16F10) implanted in mice. Melanoma tumor cells were injected in male Balb C mice which were distributed in four groups: control (no irradiated) or irradiated by 3, 9, or 21 J (150; 450, or 1050 J/cm2 )...
April 5, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29621288/low-power-laser-irradiation-and-human-adipose-derived-stem-cell-treatments-promote-bone-regeneration-in-critical-sized-calvarial-defects-in-rats
#6
Yan-Hsiung Wang, Jyun-Yi Wu, Su Chii Kong, Min-Hsuan Chiang, Mei-Ling Ho, Ming-Long Yeh, Chia-Hsin Chen
Both stem cell therapy and physical treatments have been shown to be beneficial in accelerating bone healing. However, the efficacy of combined treatment with stem cells and physical stimuli for large bone defects remains uncertain. The aim of this study was to evaluate the bone regeneration effects of low-power laser irradiation (LPLI) and human adipose-derived stem cell (ADSC) treatments during fracture repair using a comparative rat calvarial defect model. We evaluated the viability of human ADSCs, which were cultured on a porous PLGA scaffold using an MTS assay...
2018: PloS One
https://www.readbyqxmd.com/read/29619438/comparison-of-anti-bacterial-efficacy-of-photodynamic-therapy-and-doxycycline-on-aggregatibacter-actinomycetemcomitans
#7
Ernie Maduratna Setiawatie, Vina Puji Lestari, Suryani Dyah Astuti
Background: Aggregatibacter actinomycetemcomitans ( A.actinomycetemcomitans ) is an anaerobic bacterium has been frequently associated with aggressive periodontitis. Photodynamic therapy (PDT) is a medical treatment to prevent infection progression that utilizes light to activate a photosensitizing agent. Doxycycline is an antibacterial having photosensitivity. This study aimed to evaluate potential doxycycline as an antibacterial and photosensitizer combine PDT against A.actinomycetemcomitans bacteria...
2018: African Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29611064/comparative-effect-of-photobiomodulation-associated-with-dexamethasone-after-sciatic-nerve-injury-model
#8
Luana Gabriel de Souza, Alexandre Márcio Marcolino, Heloyse Uliam Kuriki, Elaine Cristina Dalazen Gonçalves, Marisa de Cássia Registro Fonseca, Rafael Inácio Barbosa
To analyze the effect of photobiomodulation and dexamethasone on nerve regeneration after a sciatic nerve crushing model. Twenty-six Swiss mice were divided into the following groups: naive; sham; injured, low-level laser therapy (LLLT) (660 nm, 10 J/cm2 , 0.6 J, 16.8 J total energy emitted during the 28 days of radiation, 20 s, for 28 days); dexamethasone (Dex) (local injection of 2 mg/kg for 10 consecutive days); and LLLT group associated with Dex (LLLT/Dex), with the same parameters of the other groups...
April 2, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29611063/physical-properties-of-hydrogel-wound-dressing-and-its-use-in-low-level-laser-therapy-lllt
#9
K Wachal, E Stachowska, K Korpuścińska, B Nowak, Z Krasiński
Hydrogel dressings are routinely used in the treatment of superficial skin wounds. Due to their excellent transparency, we decided to evaluate their usefulness in laser-based medical procedures. We focused on assessing selected physical properties of HydroAid hydrogel wound dressing, used for low-level laser therapy (LLLT) aka laser biostimulation procedures. For the two wavelengths of 660 and 808 nm used in the biostimulation laser POLARIS 2, a dressing transmittance of 92 and 98%, respectively, was determined...
April 2, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29607622/ischemic-oculomotor-nerve-palsy-due-to-hyaluronic-acid-filler-injection
#10
In Ho Bae, Min Sung Kim, Hoon Choi, Chan Ho Na, Bong Seok Shin
Hyaluronic acid (HA) is the most popular agent today for intradermal injections to improve wrinkles and other cosmetic defects. Ischemic necrosis due to injection of HA is one of the serious complications. Because there are many vascular branches around the nose, caution and care should be given during facial filler injection. Although the incidence is rare, blindness and permanent visual loss may occur. We describe a 29-year-old woman presented with painful erythematous swelling with violaceous patch on right periocular area and glabella after HA filler injection...
April 1, 2018: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29603108/should-open-excisions-and-sutured-incisions-be-treated-differently-a-review-and-meta-analysis-of-animal-wound-models-following-low-level-laser-therapy
#11
Peter Gál, Martin Bjørn Stausholm, Ivan Kováč, Erik Dosedla, Ján Luczy, František Sabol, Jan Magnus Bjordal
Although low-level laser therapy (LLLT) was discovered already in the 1960s of the twentieth century, it took almost 40 years to be widely used in clinical dermatology/surgery. It has been demonstrated that LLLT is able to increase collagen production/wound stiffness and/or improve wound contraction. In this review, we investigated whether open and sutured wounds should be treated with different LLLT parameters. A PubMed search was performed to identify controlled studies with LLLT applied to wounded animals (sutured incisions-tensile strength measurement and open excisions-area measurement)...
March 30, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29599594/evaluation-of-low-level-laser-therapy-on-orthodontic-tooth-movement-a-randomized-control-study
#12
Guneet Guram, Rajesh Kumar Reddy, Anand M Dharamsi, Prabhu Mahin Syed Ismail, Samvit Mishra, M Dave Prakashkumar
Background: Fixed orthodontic treatment is time-consuming procedure. Pain is usually associated with orthodontic treatment. The aim of the present study was to evaluate the role of low-level laser therapy (LLLT) on orthodontic tooth movement (OTM) duration and pain perception. Materials and Methods: This randomized double-blind splint-mouth controlled clinical study includes 20 (8 males and 12 females) orthodontic patients requiring bilateral canine retraction. Time taken for canine retraction with LLLT (Group A) over control (Group B) quadrant on the same patient was assessed along with pain experience using facial pain scale...
January 2018: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29588823/histological-evaluation-of-orthodontic-tooth-movement-following-low-level-laser-irradiation-in-rabbits
#13
Mostafa Abtahi, Nasrollah Saghravanian, Maryam Poosti, Hooman Shafaee
Background: Reduction of orthodontic treatment time is a major concern for orthodontists. Low level laser therapy (LLL) has been widely used in dentistry and it has been claimed that it could stimulate bone formation. Objective: The aim of the present study was to evaluate histological effects of LLL on alveolar bone remodeling during experimental tooth movement in rabbits. Methods: In this experimental study which was performed in the animal lab of Mashhad Dental School in 2016 twenty pre-pubertal female albino rabbits with the mean age of 8±1 weeks were randomly assigned into two groups...
January 2018: Electronic Physician
https://www.readbyqxmd.com/read/29588616/optimal-management-of-orthodontic-pain
#14
REVIEW
Francielle Topolski, Alexandre Moro, Gisele Maria Correr, Sasha Cristina Schimim
Pain is an undesirable side effect of orthodontic tooth movement, which causes many patients to give up orthodontic treatment or avoid it altogether. The aim of this study was to investigate, through an analysis of the scientific literature, the best method for managing orthodontic pain. The methodological aspects involved careful definition of keywords and diligent search in databases of scientific articles published in the English language, without any restriction of publication date. We recovered 1281 articles...
2018: Journal of Pain Research
https://www.readbyqxmd.com/read/29582585/low-level-laser-therapy-as-an-adjunct-to-connective-tissue-graft-procedure-in-the-treatment-of-gingival-recession-defects-a-systematic-review-and-meta-analysis
#15
REVIEW
Zohaib Akram, Fahim Vohra, Fawad Javed
OBJECTIVE: The aim of this study was to systematically evaluate the effectiveness of low level laser therapy (LLLT) as an adjunct to connective tissue graft (CTG) procedure for the treatment of gingival recession (GR). MATERIALS AND METHODS: The addressed PICO question was; "In patients with Miller Class I or II recession defects (Population), what is the effect of LLLT as adjunct to CTG (Intervention) in comparison to CTG alone (Comparison) on gingival recession depth (Outcome)" Electronic databases were searched up to December 2017...
March 26, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29581740/effects-of-low-level-laser-therapy-following-surgical-extraction-of-the-lower-third-molar-with-objective-measurement-of-swelling-using-a-three-dimensional-system
#16
Mahmut Koparal, Ayse Ozcan Kucuk, Hilal Alan, Fatih Asutay, Mehmet Avci
The aim of the present study was to evaluate and compare the effects of single- and two-dose low-level laser therapy (LLLT) on the postoperative swelling, trismus and pain of patients undergoing extraction of impacted mandibular third molars. In addition, edema was volumetrically measured with a 3dMD face system. A total of 45 patients were randomly divided into three treatment groups (15 patients in each group) as follows: Group 1, receiving routine management with ice application and serving as the control group; Group 2, receiving a single dose of LLLT immediately following surgery; and Group 3, receiving two doses of LLLT, immediately following surgery and on day 2 after surgery...
April 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29578836/protective-effects-of-photobiomodulation-against-resistance-exercise-induced-muscle-damage-and-inflammation-in-rats
#17
Helenita Antonia de Oliveira, Ednei Luiz Antonio, Flávio André Silva, Paulo de Tarso Camillo de Carvalho, Regiane Feliciano, Amanda Yoshizaki, Stella de Souza Vieira, Brunno Lemes de Melo, Ernesto Cesar Pinto Leal-Junior, Rodrigo Labat, Danilo Sales Bocalini, José Antonio Silva Junior, Paulo José Ferreira Tucci, Andrey Jorge Serra
We investigated whether low-level laser therapy (LLLT) prior to or post resistance exercise could attenuate muscle damage and inflammation. Female Wistar rats were assigned to non-LLLT or LLLT groups. An 830-nm DMC Laser Photon III was used to irradiate their hind legs with 2J, 4J, and 8J doses. Irradiations were performed prior to or post (4J) resistance exercise bouts. Resistance exercise consisted of four maximum load climbs. The load work during a resistance exercise bout was similar between Control (non-LLLT, 225 ± 10 g), 2J (215 ± 8 g), 4J (210 ± 9 g), and 8J (226 ± 9 g) groups...
March 26, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29577710/etiological-periodontal-treatment-with-and-without-low-level-laser-therapy-on-il-1%C3%AE-level-in-gingival-crevicular-fluid-an-in-vivo-multicentric-pilot-study
#18
F Mastrangelo, A Dedola, F Cattoni, F Ferrini, F Bova, M Tatullo, E Gherlone, L Lo Muzio
Cytokine proteins may have important roles during different human physiological and pathological processes. In the oral cavity, the bone loss and periodontal tissue pathology was related to inflammatory process activation. The aim of the present study was to assess the effects of etiological periodontal therapy with and without the use of Low Level Laser Therapy (LLLT) on clinical periodontal parameters and interleukin (IL)-1β level in gingival crevicular fluid (GCF) from chronic periodontitis (CP) patients...
March 26, 2018: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29574990/the-effect-of-combined-pulsed-wave-low-level-laser-therapy-and-mesenchymal-stem-cell-conditioned-medium-on-the-healing-of-an-infected-wound-with-methicillin-resistant-staphylococcal-aureus-in-diabetic-rats
#19
Reza Kouhkheil, Mohammadjavad Fridoni, Abbas Piryaei, Soudabeh Taheri, Alireza S Chirani, Iraj J Anarkooli, Reza Nejatbakhsh, Sasha Shafikhani, Lucia A Schuger, Vijaya B Reddy, Seyed Kamran Ghoreishi, Reza Jalalifirouzkouhi, Sufan Chien, Mohammad Bayat
This study aims to investigate the combined effects of Pulsed wave low-level laser therapy (PW LLLT) and human bone marrow mesenchymal stem cell-conditioned medium (hBM-MSC-CM) on the microbial flora and tensiometrical properties of an infected wound model with methicillin-resistant staphylococcal aureus (MRSA) in an experimental model for Type 1 diabetes mellitus (TIDM). TIDM was induced in rats by streptozotocin (STZ). One full-thickness excision was made on the backs of the rats. Next, the rats were divided into the following groups: Group 1 was the control (placebo) group; Group 2 received hBM-MSCs-CM four times; Group 3 were laser PWLLLT (890 nm, 80 Hz, 0...
March 25, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29570423/current-and-future-trends-in-adipose-stem-cell-differentiation-into-neuroglia
#20
Sajan George, Michael R Hamblin, Heidi Abrahamse
BACKGROUND: Neurological diseases and disorders pose a challenge for treatment and rehabilitation due to the limited capacity of the nervous system to repair itself. Adipose stem cells (ASCs) are more pliable than any adult stem cells and are capable of differentiating into non-mesodermal tissues, including neurons. Transdifferentiating ASCs to specific neuronal lineage cells enables us to deliver the right type of cells required for a replacement therapy into the nervous system. METHODS: Several methodologies are being explored and tested to differentiate ASCs to functional neurons and glia with cellular factors and chemical compounds...
March 23, 2018: Photomedicine and Laser Surgery
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