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https://www.readbyqxmd.com/read/28525303/low-level-laser-therapy-after-wisdom-teeth-surgery-evaluation-of-immunologic-markers-secretory-immunoglobulin-a-and-lysozyme-levels-and-thermographic-examination-placebo-controlled-study
#1
Tatjana Dostalova, Veronika Kroulikova, Stepan Podzimek, Helena Jelinková
OBJECTIVE: The goal of this investigation is to analyze the effect of therapeutic low-level laser therapy (LLLT) to have a possibility to check pain and inflammation connected with surgical removal of impacted lower third molars in general anesthesia or even phobia [not accompanied by pain or fear of dental treatment, using immunologic markers-secretory immunoglobulin A (sIgA) and lysozyme]. The healing process was also monitored by infrared thermography. BACKGROUND DATA: LLLT can accelerate the proliferation phase of healing and decrease the inflammatory reaction, but the effect is not really clear...
May 16, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28523391/the-effect-of-low-level-diode-laser-on-cox-2-gene-expression-in-chronic-periodontitis-patients
#2
Snezana Pesevska, Icko Gjorgoski, Kiro Ivanovski, Nikolaos K Soldatos, Nikola Angelov
Adjunctive treatments to scaling and root planing (SRP) such as lasers, have been utilized in the treatment of chronic periodontitis, mainly aiming to suppress and eliminate the bacteria, as well as enhancing the healing response. Eighty gingival papilla biopsy samples were obtained from 60 patients diagnosed with chronic advanced periodontitis; randomly assigned to three treatment groups (n = 20), as well as 20 subjects with no periodontal disease [group A]. Group B received SRP on a single quadrant/day for four consecutive days...
May 18, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28522808/plasmonics-enhanced-smartphone-fluorescence-microscopy
#3
Qingshan Wei, Guillermo Acuna, Seungkyeum Kim, Carolin Vietz, Derek Tseng, Jongjae Chae, Daniel Shir, Wei Luo, Philip Tinnefeld, Aydogan Ozcan
Smartphone fluorescence microscopy has various applications in point-of-care (POC) testing and diagnostics, ranging from e.g., quantification of immunoassays, detection of microorganisms, to sensing of viruses. An important need in smartphone-based microscopy and sensing techniques is to improve the detection sensitivity to enable quantification of extremely low concentrations of target molecules. Here, we demonstrate a general strategy to enhance the detection sensitivity of a smartphone-based fluorescence microscope by using surface-enhanced fluorescence (SEF) created by a thin metal-film...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28514138/manipulating-ion-migration-for-highly-stable-light-emitting-diodes-with-single-crystalline-organometal-halide-perovskite-microplatelets
#4
Mingming Chen, Xin Shan, Thomas Geske, Junqiang Li, Zhibin Yu
Ion migration has been commonly observed as a detrimental phenomenon in organometal halide perovskite semiconductors, causing the measurement hysteresis in solar cells and ultra-short operation lifetimes in light-emitting diodes. In this work, ion migration is utilized for the formation of a p-i-n junction at ambient temperature in single-crystalline organometal halide perovskites. The junction is subsequently stabilized by quenching the ionic movement at a low temperature. Such a strategy of manipulating the ion migration has led to efficient single-crystalline light-emitting diodes that emit 2...
May 17, 2017: ACS Nano
https://www.readbyqxmd.com/read/28513655/boron-difluoride-hemicurcuminoid-as-an-efficient-far-red-to-near-infrared-emitter-toward-oleds-and-laser-dyes
#5
A D'Aléo, M H Sazzad, D H Kim, E Y Choi, J W Wu, G Canard, F Fages, J-C Ribierre, C Adachi
A hemicurcuminoid boron difluoride complex is used as an emitter in organic light-emitting diodes, showing far red/near-infrared electroluminescence with an external quantum efficiency as high as 2.1%. This dye blended in CBP thin films shows amplified spontaneous emission with a threshold of 22 μJ cm(-2) at 750 nm, making this compound attractive for organic semiconductor lasers operating in the near-infrared region.
May 17, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28513491/results-of-a-new-mirror-tuck-technique-for-fixation-of-lacrimal-bypass-tube-in-conjunctivodacryocystorhinostomy
#6
Ruchi Goel, Divya Kishore, Smriti Nagpal, Sushil Kumar, Neha Rathie
CONTEXT: Conjunctivodacryocystorhinostomy (CDCR) is the procedure of choice for proximal canalicular blocks. However, the complications of tube migration and extrusion limit its widespread practice. AIM: The aim of this study is to evaluate the efficacy and complications of the new "mirror tuck technique" for fixation of lacrimal bypass glass tube without holes in proximal canalicular blocks in laser CDCR. MATERIALS AND METHODS: A prospective interventional study was conducted in forty consecutive eyes of adult patients, undergoing 980 nm diode laser CDCR for proximal canalicular blocks...
April 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28513251/comparison-of-the-effects-of-665-nm-low-level-diode-laser-hat-versus-and-a-combination-of-665-nm-and-808nm-low-level-diode-laser-scanner-of-hair-growth-in-androgenic-alopecia
#7
Behrooz Barikbin, Zeinab Khodamrdi, Leila Kholoosi, Mohammad Reza Akhgri, Majid Haj Abbasi, Mojgan Hajabbasi, Zahra Razzaghi, Samaneh Akbarpour
BACKGROUND: This study aimed to evaluate the effectiveness of a combined set of low level diode laser scanner (665 nm and 808nm) on hair growth, and assessment of safety and effectiveness of a new laser scanner on hair growth treatment procedure in androgenic alopecia. METHODS: 90 patients (18 to 70 years) with androgenic alopecia were randomized into three groups. The first group (n=30) received 655 nm red light using laser hat, the second group (n=30) received 655 nm red laser plus 808 nm infrared laser using a laser scanner of hair growth device (with the patent number: 77733) and the third group (n=30) received no laser as the control group...
May 17, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28512727/variability-of-high-dose-melphalan-exposure-on-oral-mucositis-in-patients-undergoing-prophylactic-low-level-laser-therapy
#8
Gustavo Henrique Rodrigues, Graziella Chagas Jaguar, Fabio Abreu Alves, Andre Guollo, Vanessa Oliveira Camandoni, Aline Santos Damascena, Vladmir Claudio Cordeiro Lima
The present study outlines the clinical impact and risk factors of oral mucositis in 79 patients with multiple myeloma following high-dose melphalan for autologous transplant. All patients underwent daily prophylactic low-level indium gallium aluminum phosphate diode laser therapy (660 nm, 15 mW, 3.75 J/cm(2), 10 s per point) from the beginning of the conditioning regimen up to day +2. Oral mucositis assessments were made daily until hospital discharge. For analysis, oral mucositis was divided into two groups according to severity: group 1, patients with oral mucositis grade <III (n = 71) and group 2, patients with oral mucositis grade ≥III (n = 8)...
May 16, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28512549/evaluation-of-the-effectiveness-of-the-photobiomodulation-in-the-treatment-of-dentin-hypersensitivity-after-basic-therapy-a-randomized-clinical-trial
#9
Cristina García-Delaney, Daniel Abad-Sánchez, Josep Arnabat-Domínguez, Eduard Valmaseda-Castellón, Cosme Gay-Escoda
BACKGROUND: Dentin hypersensitivity (DH) in one of the most common causes of patient discomfort in the general population and its prevalence is higher in patients who have received basic or surgical periodontal treatment. Efficiency of the diode laser with different wavelengths has been studied by several authors, showing an improvement rate of the DH between 60-98%. The aim of the present study was to evaluate the effect of photobiomodulation (PBM) treatment on the reduction of DH after non surgical periodontal treatment...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28512293/near-infrared-quantum-cutting-luminescence-of-er-3-tm-3-ion-pairs-in-a-telluride-glass
#10
Xiaobo Chen, Song Li, Lili Hu, Kezhi Wang, Guoying Zhao, Lizhu He, Jinying Liu, Chunlei Yu, Jingfu Tao, Wei Lin, Guojian Yang, Gregory J Salamo
The multiphoton near-infrared, quantum cutting luminescence in Er(3+)/Tm(3+) co-doped telluride glass was studied. We found that the near-infrared 1800-nm luminescence intensity of (A) Er(3+)(8%)Tm(3+)(0.5%):telluride glass was approximately 4.4 to 19.5 times larger than that of (B) Tm(3+)(0.5%):telluride glass, and approximately 5.0 times larger than that of (C) Er(3+)(0.5%):telluride glass. Additionally, the infrared excitation spectra of the 1800 nm luminescence, as well as the visible excitation spectra of the 522 nm and 652 nm luminescence, of (A) Er(3+)(8%)Tm(3+)(0...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28509563/the-adjunctive-soft-tissue-diode-laser-in-orthodontics
#11
Ali Borzabadi-Farahani
Lasers are a relatively new addition to the orthodontist's armamentarium. This article reviews the fundamental basic science of available soft-tissue lasers, with an emphasis on diode lasers, and discusses various adjunct applications of the diode laser for soft-tissue orthodontic procedures. Diode lasers function by cutting with an initiated hot tip and produce minimal to no interaction with healthy dental hard tissue, making them suitable for soft-tissue procedures. The contact cutting mode provides enhanced bloodless site visibility and facility to perform delicate soft tissue procedures, which is important in areas with difficult access...
April 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28502875/efficacy-of-photodynamic-therapy-versus-antibiotics-as-an-adjunct-to-scaling-and-root-planing-in-the-treatment-of-periodontitis-a-systematic-review-and-meta-analysis
#12
REVIEW
Zohaib Akram, Tahira Hyder, Nawwaf Al-Hamoudi, Munerah Saleh Binshabaib, Shatha Subhi Alharthi, Ayesha Hanif
BACKGROUND: To determine whether treatment with antimicrobial photodynamic therapy (aPDT) as an adjunct to scaling and root planing (SRP) yield better clinical periodontal outcomes than antibiotics (AB) as adjunct to SRP in periodontitis. METHODS: Electronic searches were conducted in databases (MEDLINE, PubMed, EMBASE, SCOPUS, Cochrane Central Register of Controlled Trials and Cochrane Oral Health Group Trials Register databases) up to and including April 2017...
May 11, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28498507/effect-of-surgical-periodontal-treatment-associated-to-antimicrobial-photodynamic-therapy-on-chronic-periodontitis-a-randomized-controlled-clinical-trial
#13
Sérgio H L Martins, Arthur B Novaes, Mario Taba, Daniela B Palioto, Michel R Messora, Danilo M Reino, Sérgio L S Souza
AIM: This randomized controlled clinical trial evaluated the effects of an adjunctive single application of antimicrobial photodynamic therapy (aPDT) in Surgical Periodontal Treatment (ST) in patients with severe chronic periodontitis (SCP). MATERIAL AND METHODS: In a split-mouth design, 20 patients with SCP were treated with aPDT+ST (Test Group, TG) or ST only (Control Group, CG). aPDT was applied in a single episode, using a diode laser and a phenothiazine photosensitizer...
May 12, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28494605/intra-pulpal-and-subsurface-temperature-rise-during-tooth-irradiation-with-808-nm-diode-laser-an-in-vitro-study
#14
F Khouja, M Abdelaziz, T Bortolotto, I Krejci
AIM: This in vitro study evaluated the pulpal and subsurface temperatures during proximal tooth surface irradiation with different settings of an 808 nm diode laser. MATERIALS AND METHODS: The elevation of pulpal and subsurface temperature during irradiation was measured using thermocouples positioned in the centre of the pulp chamber (n=30) and in the centre of a prepared 1.5 mm deep coronal cavity (n=30). Each sample was irradiated 3 times within one-week interval using different exposure settings...
March 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28492656/a-study-on-one-step-laser-nanopatterning-onto-copper-hydrazone-complex-thin-films-and-its-mechanism
#15
Kui Zhang, Zhimin Chen, Jingsong Wei, Tao Wei, Youyong Geng, Yang Wang, Yiqun Wu
Semiconductor diode-based laser patterning with visible light has been extensively applied to the fabrication of arbitrary structures. However, recently, the technique has faced a great challenge because it cannot meet nanoscale-resolved patterning fabrication due to the optical diffraction limit, which is an inherent drawback in the field of optics. To attack the question, copper(ii)-hydrazone-complex (CuL2) thin films are used as laser patterning materials. Under the heating of a writing laser spot, one-step laser nanopatterning on the CuL2 thin films is obtained...
May 11, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28491941/dataset-of-water-activity-measurements-of-alcohol-water-solutions-using-a-tunable-diode-laser
#16
Matthew Allan, Lisa J Mauer
The data presented in this article are related to the research article entitled "RH-temperature phase diagrams of hydrate forming deliquescent crystalline ingredients" (Allan and Mauer, 2017) [1]. The data are water activity measurements of alcohol:water solutions (methanol:water and ethanol:water solutions at varying molar ratios) at different temperatures collected using the Tunable Diode Laser by Decagon Devices. The measured water activities of ethanol:water solutions were correlated to the initial volumetric ratios to produce polynomial equations that can be used to calculate the needed initial volumetric ratios for water activity controlled solutions...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28474112/transperineal-laser-ablation-for-percutaneous-treatment-of-benign-prostatic-hyperplasia-a-feasibility-study
#17
Gianluigi Patelli, Antonio Ranieri, Aurelio Paganelli, Giovanni Mauri, Claudio Maurizio Pacella
PURPOSE: To assess the feasibility and safety of transperineal laser ablation (TPLA) for treating benign prostatic hyperplasia (BPH). MATERIALS AND METHODS: Institutional review board approval was obtained for this prospective non-randomized trial. Eightteen patients (age 71.7 ± 9.4 years) with urinary symptoms secondary to BPH underwent TPLA under local anesthesia. Under US guidance, up to four 21G applicators were inserted in the prostatic tissue. Each treatment was performed with diode laser operating at 1064 nm changing the illumination time according to prostate size...
May 4, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28469819/evaluation-of-antibacterial-efficacy-of-photodynamic-therapy-vs-2-5-naocl-against-e-faecalis-infected-root-canals-using-real-time-pcr-technique
#18
REVIEW
Maryam Janani, Farnaz Jafari, Mohammad Samiei, Farzaneh Lotfipour, Ailar Nakhlband, Negin Ghasemi, Tannaz Salari
BACKGROUND: Bacteria like E. faecalis can produce intra- and extra-radicular biofilms. Theoretically, the adjustable penetration ability of lasers enables better access to root canal system. Therefore the aim of the present study was to compare the ability of photoactivated laser and 2.5% NaOCl irrigation solution to eliminate E. faecalis from the root canals by real-time PCR technique. MATERIAL AND METHODS: Sixty extracted human upper central incisors were selected and sterilized in an autoclave...
April 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28469814/comparison-of-laser-and-power-bleaching-techniques-in-tooth-color-change
#19
Reza Fekrazad, Shervin Alimazandarani, Katayoun Am Kalhori, Hadi Assadian, Seyed-Mahdi Mirmohammadi
BACKGROUND: Laser-assisted bleaching uses laser beam to accelerate release of free radicals within the bleaching gel to decrease time of whitening procedure. The aim of this study was to compare the efficacy of power bleaching using Opalescence Xtra Boost® and laser bleaching technique using LaserSmile gel and diode laser as an activator in their tooth whitening capacity. MATERIAL AND METHODS: Student t test showed that the laser bleaching group significantly outperformed the power bleaching group in changing ∆E (p=0...
April 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28468438/multiphoton-imaging-with-blue-diode-pumped-sesam-modelocked-ti-sapphire-oscillator-generating-5-nj-82-fs-pulses
#20
Andreas Rohrbacher, Omar E Olarte, Vesna Villamaina, Pablo Loza-Alvarez, Bojan Resan
We report a directly blue diode pumped Ti:Sapphire oscillator that generates 5 nJ pulses. This is five times higher pulse energy than previously reported for a directly diode pumped Ti:sapphire laser. With 460 mW of average power at 92 MHz and 82 fs pulses, its peak power reaches 61 kW, also several times higher the value than previously published. Direct diode pumping significantly reduces the complexity and therefore the footprint and the cost of the laser, while SESAM modelocking ensures reliable selfstarting and robust operation...
May 1, 2017: Optics Express
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