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Lasers in Medical Science

Jasmin Nurković, Ivan Zaletel, Selmina Nurković, Šefćet Hajrović, Fahrudin Mustafić, Jovan Isma, Aleksandra Jurišić Škevin, Vesna Grbović, Milica Kovačević Filipović, Zana Dolićanin
In recent years, electromagnetic field (EMF) and low-level laser (LLL) have been found to affect various biological processes, the growth and proliferation of cells, and especially that of stem cells. The aim of this study was to investigate the effects of EMF and LLL on proliferation of human adipose tissue-derived mesenchymal stem cells (hAT-MSCs) and thus to examine the impact of these therapeutic physical modalities on stem cell engraftment. hAT-MSCs were isolated from subcutaneous adipose tissue of six persons ranging in age from 21 to 56 years...
October 21, 2016: Lasers in Medical Science
Korgün Ökmen, Burcu Metin Ökmen
This study aims to investigate the efficacy of three different percutaneous intradiscal therapies in patients with chronic low back pain (CLBP) due to lumbar disc herniation (LDH). Medical files of a total of 120 patients who received percutaneous intradiscal therapy were retrospectively analyzed. All patients were divided into three groups: group L: diode laser (n = 40), group R: radiofrequency (RF) (n = 40), and group P: pulsed radiofrequency (PRF) (n = 40). The visual analogue scale (VAS) and Oswestry Disability Index (ODI) scores were calculated at 1, 3, 6, and 12 months for all patients...
October 21, 2016: Lasers in Medical Science
Jae-Hui Nam, Young-Jun Choi, Jae Yun Lim, Joon Hong Min, Won-Serk Kim
High-intensity focused ultrasound (HIFU) is regarded as an effective skin-lifting device; however, literature regarding treatment of the aging neck and décolletage with HIFU is scarce. Our study aimed to evaluate the efficacy of combination with HIFU and low-fluence Q-switched Nd:YAG (LQSNY) laser on the aging neck and décolletage. Nineteen women were assessed. HIFU at two visits and LQSNY laser at six visits were used to irradiate the neck and chest. At week 16, improvements were rated using the Dedo classification, Fabi/Bolton Chest Wrinkle Scale (FBCWS), and Global Aesthetic Improvement Scales (GAIS)...
October 20, 2016: Lasers in Medical Science
Amer Z Nahas, Said A Samara, Tannaz A Rastegar-Lari
The aim of this study was to evaluate the effect of low-level light therapy using light-emitting diodes (LEDs) on the speed of tooth movements that were required for the leveling and aligning of the lower anterior segment during non-extraction orthodontic treatment. The sample was comprised of patients (n = 40) with lower anterior crowding who were treated with self-ligating orthodontic brackets and a standardized wire sequence. A test group of patients (n = 20) who were treated with extraoral infrared light therapy for 20 min daily with at least 80 % compliance was compared to a control group (n = 20)...
October 20, 2016: Lasers in Medical Science
Alina Constantin, Madalina Dumitrescu, Maria Cristina Mihai Corotchi, Dana Jianu, Maya Simionescu
CO2 laser has a beneficial effect on stem cells by mechanisms that are not clearly elucidated. We hypothesize that the effect of fractional CO2 laser on human adipose-derived stem cells (ADSC) could be due to changes in redox homeostasis and secretion of factors contributing to cellular proliferation and angiogenic potential. ADSC incubated in medium containing 0.5 or 10 % FBS were exposed to a single irradiation of a 10,600-nm fractional CO2 laser; non-irradiated ADSC were used as control. Viability/proliferation of ADSC was assessed by MTT assay; the intracellular reactive oxygen species (ROS) levels and the mitochondrial membrane potential (∆Ψm) were determined with DCFH-DA and JC-1 fluorescent probes, respectively...
October 20, 2016: Lasers in Medical Science
Jehan Alsharnoubi, Adly A Sabbour, Ahmed I Shoukry, Amany M Abdelazeem
Nocturnal enuresis (NE) is intermittent involuntary voiding during sleep in a child aged 5 years or more. The study was conducted to compare the effect of using laser acupuncture and medication for the treatment of children with nocturnal enuresis (NE) and evaluation of urodynamic parameter after treatment. A randomized study included 45 children ranged from 5 to 15 years presenting with NE. They were randomized into three equal groups-group A, managed with desmopressin acetate; group B, managed with laser acupuncture; and group C, managed with a combination of laser acupuncture and desmopressin-all groups received behavioral therapy...
October 15, 2016: Lasers in Medical Science
Sarah Qureshi, Jennifer Y Lin
Aminolevulinic acid (ALA) photodynamic therapy (PDT) is an emerging modality in the treatment of acne. While ablative fractional lasers have been used to enhance drug delivery into the epidermis, recent evidence suggests that non-ablative fractional photothermolysis may also improve uptake of ALA. We explored the use of non-ablative 1550 nm laser as a safe alternative in the delivery of ALA prior to red-light PDT for refractory inflammatory and cystic acne. Subjects referred for treatment of acne refractory to several topical and oral regimens, including isotretinoin, were pre-treated with non-ablative fractional photothermolysis (NAFP)...
October 14, 2016: Lasers in Medical Science
Felice Femiano, Rossella Femiano, Alessandro Lanza, Michele Lanza, Letizia Perillo
This study compares sensitivity reduction after dental restoration with and without prior diode laser (DL) irradiation for cervical dentine hypersensitivity (CDH) from non-carious cervical lesions (NCCLs) unresponsive to desensitizing agents. Eighty-eight teeth of 28 subjects (21 females; age 23-64 years), with CDH from NCCL were included in this study. NCCLs of each oral quadrant were randomized in two groups (study group (SG)) to estimate the sensitivity reduction after dental restoration (SG-1) compared with the DL irradiation used prior to restoration placement (SG-2)...
October 12, 2016: Lasers in Medical Science
Vanessa Lima Cavalcante de Oliveira, José Antonio Silva, Andrey Jorge Serra, Rodney Capp Pallotta, Evela Aparecida Pereira da Silva, Anna Cristina de Farias Marques, Regiane Dos Santos Feliciano, Rodrigo Labat Marcos, Ernesto Cesar Pinto Leal-Junior, Paulo de Tarso Camillo de Carvalho
The objective of this study was to evaluate the effects of photobiomodulation therapy (PBMT) on inflammatory indicators, i.e., inflammatory mediators (TNF-α and CINC-1), and pain characterized by hyperalgesia and B1 and B2 receptor activation at 6, 24, and 48 h after papain-induced osteoarthritis (OA) in rats. Fifty-four rats were subjected to hyperalgesia evaluations and then divided randomly into three groups-a control group and two groups OA and OA PBMT group by using laser parameters at wavelength (808 nm), output power (50 mW), energy per point (4 Joules), power density (1...
October 10, 2016: Lasers in Medical Science
Shaiane Silva Tomazoni, Ernesto Cesar Pinto Leal-Junior, Rodney Capp Pallotta, Simone Teixeira, Patricia de Almeida, Rodrigo Álvaro Brandão Lopes-Martins
Osteoarthritis (OA) triggers increased levels of inflammatory markers, including prostaglandin (PG) E2 and proinflammatory cytokines. The elevation of cytokine levels is closely associated with increased articular tissue degeneration. Thus, the use of combination therapies may presumably be able to enhance the effects on the modulation of inflammatory markers. The present study aimed to evaluate and compare the effects of photobiomodulation therapy (PBMT), physical exercise, and topical nonsteroidal anti-inflammatory drug (NSAID) use on the inflammatory process after they were applied either alone or in different combinations...
October 10, 2016: Lasers in Medical Science
Ola A Dabbous, Mona M Soliman, Nagwa H Mohamed, Magda Y Elseify, Mai S Elsheikh, Asmaa A A Alsharkawy, Manal M Abd Al Aziz
Variable therapy of asthma is not sufficient yet to achieve good asthma control. Therapy decision requires serial investigations. Low-level laser acupuncture is a suitable non-invasive modality of complementary medicine. The exhaled breath condensate (EBC) is easy and useful to evaluate the efficacy of drugs or novel therapy. This study aimed to evaluate the effectiveness of low-level laser biostimulation of acupuncture points on asthma improvement in children. Forty-eight asthmatic children were subdivided into case (laser) group, which received 12 direct contact low-power laser acupuncture sessions (three sessions/week) on specific traditional Chinese acupuncture points for bronchial asthma, and control asthmatic group, which received sham laser acupuncture on the same acupoints and number of sessions of the case (laser) group...
October 5, 2016: Lasers in Medical Science
Priscila Vivas da Cruz Andrade, Vanessa Tubero Euzebio Alves, Verônica Franco de Carvalho, Michelle De Franco Rodrigues, Claudio Mendes Pannuti, Marinella Holzhausen, Giorgio De Micheli, Marina Clemente Conde
Antimicrobial photodynamic therapy (aPDT) was introduced as a promising adjuvant therapy on the periodontal treatment. The aim of this study was to evaluate the effect of aPDT on inflammatory mediator levels in residual periodontal pockets of patients with severe chronic periodontitis under periodontal maintenance, during 12 months follow-up. A randomized controlled trial study was conducted in 28 patients with severe chronic periodontitis. After non-surgical periodontal treatment, patients with at least four teeth with residual pocket probing depth (PPD) ≥4 mm were randomly assigned to either aPDT or control group...
October 4, 2016: Lasers in Medical Science
Karen Müller Ramalho, Lárissa Marcondes Paladini de Souza, Isabel Peixoto Tortamano, Carlos Alberto Adde, Rodney Garcia Rocha, Carlos de Paula Eduardo
This randomized placebo-blind study aimed to evaluate the effect of laser phototherapy (LPT) on pain caused by symptomatic irreversible pulpitis (SIP). Sixty patients diagnosed with SIP were randomly assigned to treatment groups (n = 15): G1 (control), G2 (laser placebo-sham irradiation), G3 (laser irradiation at 780 nm, 40 mW, 4 J/cm(2)), and G4 (laser irradiation at 780 nm, 40 mW, 40 J/cm(2)). Spontaneous pain was recorded using a VAS score before (T0), immediately after (T1), and 15 min after treatment (T2)...
October 1, 2016: Lasers in Medical Science
Nam Kyung Roh, Yeong Min Yoon, Yang Won Lee, Yong Beom Choe, Kyu Joong Ahn
A limited number of studies have evaluated the efficacy and safety of electrode pin fractional radiofrequency (FRF) for periorbital wrinkle treatment in Asian patients, but none have measured noninvasive methodological objective parameters such as periorbital wrinkle area. This study aimed to investigate the efficacy and safety of electrode pin multipolar FRF for the improvement of periorbital wrinkles in Korean patients by using a noninvasive methodological objective parameter. Seventy female subjects with periorbital wrinkles (age range, 40-60 years) participated in this study...
September 30, 2016: Lasers in Medical Science
Shih-Wei Yang, Wei-Chieh Chao, Yun-Shien Lee, Liang-Che Chang, Tsan-Yu Hsieh, Tai-An Chen, Cheng-Ming Luo
The aim of this study is to evaluate the treatment outcome and analyze the associated factors of postoperative recurrence in patients who received transoral laser microsurgery for vocal cord leukoplakia. The demographic, histopathological data were retrospectively reviewed and the factors associated with recurrence of vocal leukoplakia after surgery were analyzed statistically. A total of 44 patients, including 36 males and 8 females, with a mean age of 50.4 ± 13.4 years, were enrolled. All the patients received excision of the vocal leukoplakia by carbon dioxide laser (2-4 Watt, ultrapulse mode) under general anesthesia...
September 29, 2016: Lasers in Medical Science
Tariq Abduljabbar, Fawad Javed, Altaf Shah, Mazin Saleh Samer, Fahim Vohra, Zohaib Akram
The aim of the study was to assess the efficacy of adjunctive use of laser therapy (LT) alone or antimicrobial photodynamic therapy (aPDT) to improve clinical periodontal and HbA1c levels in patients with both chronic periodontitis (CP) and type 2 diabetes mellitus (T2DM). Electronic search of the MEDLINE, PubMed, EMBASE, Science Direct, and SCOPUS databases were combined with hand searching of articles published from 1975 up to and including March 2016 using relevant MeSH terms. Six studies were selected for this review...
September 29, 2016: Lasers in Medical Science
S Yassaei, H Aghili, J Tavakol Afshari, A Bagherpour, F Eslami
The aim of this study was to evaluate the effects of low-level laser irradiation on the rate of orthodontic tooth movement (OTM) and the interleukin-6 (IL-6) concentration in gingival crevicular fluid (GCF) during orthodontic treatment. In this randomized split-mouth double blind clinical trial, 11 female patients aged 14 to 25 years (mean 19 ± 4.21 year), who required canine retraction following four first premolars extraction, were selected. The GaAlAs laser diode laser (A.R.C. Laser GmbH, Nürnberg, Germany) (980 nm, 100 mW, 5...
September 28, 2016: Lasers in Medical Science
Moluk Aivazi, Mohammad Hossein Fathi, Farahnaz Nejatidanesh, Vajihesadat Mortazavi, Batoul HashemiBeni, Jukka Pekka Matinlinna, Omid Savabi
Ceramic dental materials, especially alumina (20 %vol)-yttrium stabilized tetragonal zirconia poly crystal (A-Y-TZP20), have been considered as alternatives to metals for endosseous dental implant application. For increasing the bone-to-implant contact as well as the speed of bone formation, a new surface modification can be effective. The aim of this study was to design microgroove patterns by femtosecond laser on A-Y-TZP20 nano-composite disks for endosseous dental implant application. The phase composition and the morphology of the A-Y-TZP20 nano-composite samples were characterized using X-ray diffraction and Scanning electron microscopy equipped with energy dispersive X-ray spectroscopy techniques...
September 28, 2016: Lasers in Medical Science
Christoph Engelbach, Claudia Dehn, Oliver Brede, Andreas Braun, Florian Schelle, Christoph Bourauel, Jörg Meister, Matthias Frentzen
No abstract text is available yet for this article.
September 28, 2016: Lasers in Medical Science
Daniela M R A Salgado, Gilberto A Noro-Filho, Arthur R G Cortes, Emiko S Arita, Renato C V Casarin, Claudio Costa, Elcio M Giovani
No abstract text is available yet for this article.
September 27, 2016: Lasers in Medical Science
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