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Photomedicine and Laser Surgery

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https://www.readbyqxmd.com/read/29315011/bioluminescence-analysis-of-antibacterial-photodynamic-therapy-using-methylene-blue-mediated-by-low-intensity-level-laser-against-cariogenic-biofilms
#1
Fernando Luis Florez Esteban, Morgana Regina Mendonça de Oliveira, Osmir Batista de Oliveira Júnior, Rochelle Denise Hiers, Sharukh Soli Khajotia, Hermes Pretel
OBJECTIVE: A non-destructive and real-time bioluminescence (BL) assay was used to determine the utility of antimicrobial photodynamic therapy (aPDT) treatments mediated by methylene blue (MB) and laser irradiation (LI) against intact biofilms that are capable of producing caries (cariogenic). The efficacy of antibacterial photodynamic treatments has been currently determined by using either viable colony counts (VCC) or metabolic assays (Alamar Blue) that were demonstrated to have critical limitations when used on microcolony-forming bacteria such as Streptococcus mutans...
January 9, 2018: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29298403/intrapulpal-temperature-increases-caused-by-445-nm-diode-laser-assisted-debonding-of-self-ligating-ceramic-brackets-during-simulated-pulpal-fluid-circulation
#2
Steffen Stein, Johannes Wenzler, Andreas Hellak, Michael Schauseil, Heike Korbmacher-Steiner, Andreas Braun
OBJECTIVE: This study investigated temperature increases in dental pulp resulting from laser-assisted debonding of ceramic brackets using a 445-nm diode laser. MATERIALS AND METHODS: Eighteen ceramic brackets were bonded in standardized manner to 18 caries-free human third molars. Pulpal fluid circulation was simulated by pumping distilled water at 37°C through the pulp chamber. The brackets were irradiated with a 445-nm diode laser. Temperatures were measured using a thermal camera at points P1 (center of the pulp) and P2 (in the hard dental tissue) at the baseline (T0), at the start and end of laser application (T1 and T2), and the maximum during the sequence (Tmax)...
January 3, 2018: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29298401/penile-lichen-sclerosus-treated-with-1927%C3%A2-nm-thulium-fiber-laser-and-photodynamic-therapy-a-new-possible-therapeutic-approach
#3
Santo Raffaele Mercuri, Pina Brianti, Antonio Foti, Marco Bartolucci, Annunziata Dattola, Steven Paul Nisticò
OBJECTIVE: We treated two patients with recalcitrant lichen sclerosus (LS) of the penis with a combination of 1927 nm thulium fiber laser and methyl-aminolevulinate (MAL) photodynamic therapy (PDT). BACKGROUND DATA: Therapy of LS is based on topical potent steroids, emollients, and topical calcineurin inhibitors. Circumcision is effective, but not always accepted. PDT represents a valid therapeutic option in refractory cases, but there are no reports about the association with 1927 nm thulium laser in the treatment of this pathology...
January 3, 2018: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29265956/comparative-safety-of-needle-endoactivator-and-laser-activated-irrigation-in-overinstrumented-root-canals
#4
Ozgur Genc Sen, Melih Kaya
OBJECTIVE: To evaluate the safety of sodium hypochlorite (NaOCl) irrigation using three different techniques during the final rinse in overinstrumented root canals. BACKGROUND DATA: The effect of irrigant activation on irrigant extrusion from overinstrumented root canals is still unclear. METHOD: A total of 30 single-rooted teeth were decoronated. The working lengths were determined and the roots were divided into two groups of 15 teeth each: group 1, instrumentation 0...
December 21, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29265910/comparison-of-photobiomodulation-and-anti-inflammatory-drugs-on-tissue-repair-on-collagenase-induced-achilles-tendon-inflammation-in-rats
#5
Ingvill Fjell Naterstad, Rafael Paolo Rossi, Rodrigo Labat Marcos, Nivaldo Antonio Parizzoto, Lucio Frigo, Jón Joensen, Patrícia Sardinha Leonardo Lopes Martins, Jan Magnus Bjordal, Rodrigo Alvaro Brandão Lopes-Martins
BACKGROUND: Tendinopathy is characterized by pain, edema, and structural changes in tendon tissue. OBJECTIVE: In this animal study we decided to compare the short- and medium-term effects of low-level laser therapy (LLLT), dexamethasone, and diclofenac on inflammation and tendon tissue repair in collagenase-induced tendinitis. MATERIALS AND METHODS: Two hundred five female Wistar rats were randomly divided into five groups. Animals in the control group were given a saline injection and the experimental groups received a collagenase injection (100 μg/tendon) in the peritendinous Achilles and received no treatment, LLLT (3 J, 810 nm, 100 mW), diclofenac (1...
December 21, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29261013/performance-of-different-methods-for-detection-of-incipient-occlusal-caries-lesions-an-in-vitro-study
#6
Sinem Akgul, Oya Bala, İhsan Yikilgan
OBJECTIVE: The aim of this in vitro study was to evaluate the diagnostic performance of visual inspection (VI), laser fluorescence (LF pen), fluorescence camera (FC), and alternating current impedance spectroscopy technique (ACIST) for detection of incipient occlusal caries lesions. Histology was used as the gold standard to determine the interexaminer reliability of the methods, among three examiners with different levels of experiences (Examiner 1: 5 years; examiner 2: 10 years; and examiner 3: 25 years)...
December 20, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29227749/efficacy-and-safety-of-photoselective-vaporization-of-the-prostate-with-120-w-532%C3%A2-nm-laser-in-patients-with-benign-prostatic-hyperplasia-on-anticoagulation-or-antiplatelet-therapy-observations-on-long-term-outcomes
#7
Grzegorz Piotrowicz, Tomasz Syryło, Rafał Jedynak, Henryk Zieliński
OBJECTIVE: The objective of this study was to evaluate the safety and effectiveness of photoselective vaporization of the prostate (PVP) in the treatment of patients with benign prostatic hyperplasia (BPH) on anticoagulant or antiplatelet therapy. BACKGROUND: The "gold standard" of surgical treatment of BPH is transurethral resection of the prostate (TURP). Since the risk of complications associated with TURP is still significant, there is a continuous search for safer and equally effective procedures...
December 11, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29227207/photobiomodulation-how-many-sessions-and-how-often
#8
Jan Tunér
No abstract text is available yet for this article.
December 11, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29227199/two-step-irradiance-treatment-can-achieve-excellent-pain-control-during-red-light-5-aminolevulinic-acid-photodynamic-therapy-for-actinic-keratoses
#9
Gyorgy Paragh, Nathalie C Zeitouni
OBJECTIVE: To evaluate the ability of two-step irradiance to maintain pain control during red light 5-aminolevulinic acid (ALA) photodynamic therapy (PDT) for actinic keratoses (AK) and assess factors influencing pain. BACKGROUND: PDT provides excellent clinical and cosmetic results in the treatment AK and early basal cell carcinomas (BCC). Widespread use of PDT is limited, in part, by pain. A two-step irradiance method for PDT has previously been shown to significantly reduce PDT-associated pain during the treatment of BCC, but the ability of this method to limit pain during the treatment of AKs has not been reported...
December 11, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29173075/evaluation-of-plasma-growth-factors-vegf-pdgf-egf-ang1-and-ang2-in-patients-with-varicose-veins-before-and-after-treatment-with-endovenous-laser-ablation
#10
Nabil A Al-Zoubi, Rami J Yaghan, Tagleb S Mazahreh, Emad M Hijazi, Ahmad Alqudah, Yasmin N Owaisy, Shadi Hamouri, Nawaf J Al-Shatnawi
OBJECTIVE: To measure pre- and postoperative plasma concentrations of growth factors (VEGF, PDGF, EGF, ANG1, and ANG2) in patients with primary lower limb varicose veins (VVs) treated with endovenous laser ablation (EVLA). BACKGROUND: Many studies have explored the potential relationship between primary VVs and growth factors. No previous studies were done for patients treated with EVLA. MATERIALS AND METHODS: Blood samples were obtained from 30 patients with primary VVs undergoing treatment with EVLA before and 1 week after treatment...
November 27, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29173028/easy-debonding-of-ceramic-brackets-bonded-with-a-light-cured-orthodontic-adhesive-containing-microcapsules-with-a-co2-laser
#11
Shiori Arima, Yasuhiro Namura, Takahiko Tamura, Noriyoshi Shimizu
OBJECTIVE: An easy debonding method for ceramic brackets using a light-cured Bis-GMA resin containing heat-expandable microcapsules and CO2 laser was investigated. BACKGROUND: Ceramic brackets are used frequently in orthodontic treatment because of their desirable esthetic properties. However, the application of heavy force to ceramic brackets in debonding can fracture the tooth enamel and ceramic brackets, causing tooth pain. MATERIALS AND METHODS: In total, 60 freshly extracted bovine permanent mandibular incisors were divided randomly into 10 groups of 6 specimens each, corresponding to the number of variables tested...
November 27, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29131724/the-latest-laser-innovations-in-dentistry
#12
Tatjana Dostalova, Helena Jelinkova
No abstract text is available yet for this article.
November 13, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29131717/in-vitro-effects-of-high-intensity-laser-photobiomodulation-on-equine-bone-marrow-derived-mesenchymal-stem-cell-viability-and-cytokine-expression
#13
Frances J Peat, Aimee C Colbath, Lori M Bentsen, Laurie R Goodrich, Melissa R King
OBJECTIVE: This study aimed to examine the influence of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser irradiation on equine bone marrow-derived mesenchymal stem cell (MSC) viability, proliferation, and cytokine expression in vitro. BACKGROUND: Photobiomodulation of cells using monochromatic light is a technique designed to influence cellular processes. Previous studies have shown dose-dependent effects of low-level laser irradiation on cell proliferation and cytokine expression in a range of cell types and species...
November 13, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29131710/fluorescence-spectroscopy-as-a-tool-for-the-assessment-of-liver-samples-with-several-stages-of-fibrosis
#14
Diego A Fabila-Bustos, Úrsula D Arroyo-Camarena, María D López-Vancell, Marco A Durán-Padilla, Itzel Azuceno-García, Suren Stolik-Isakina, Alma Valor-Reed, Elizabeth Ibarra-Coronado, Luis F Hernández-Quintanar, Galileo Escobedo, José M de la Rosa-Vázquez
During the last years, fluorescence spectroscopy has been used as a potential tool for the evaluation and characterization of tissues with different disease conditions due to its low cost, high sensitivity, and minimally or noninvasive character. In this study, fluorescence spectroscopy was used to study 19 paraffin blocks containing human liver tissue from biopsies. All samples were previously analyzed by two senior pathologists in a single-blind trial. After their evaluation, four liver samples were classified as nonfibrosis (F0), four as initial fibrosis (F1-F2), four as advanced fibrosis (F3), and six as cirrhosis (F4)...
November 13, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29130843/correction-to-photomed-laser-surg-2015-34-516-524-doi-10-1089-pho-2015-3988
#15
(no author information available yet)
No abstract text is available yet for this article.
November 13, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29130819/correction-to-photomed-laser-surg-2016-34-263-271-doi-10-1089-pho-2016-4094
#16
(no author information available yet)
No abstract text is available yet for this article.
November 13, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29077539/oxygen-enriched-photosensitizer-medium-with-red-blood-cells-to-study-tissue-interaction-of-photosensitization-reaction
#17
Risa Hamada, Emiyu Ogawa, Tsunenori Arai
BACKGROUND: It has been reported that the oxygen pressure of a photosensitizer medium decreases during an irradiation leading to decrease in the efficacy of the photosensitization reaction against the target cell in vitro. OBJECTIVE: The aim of this study was to obtain solutions with high dissolved oxygen levels in cultivated wells with perceiving oxygen environment and photosensitizer bleaching for photosensitization reaction studies. MATERIALS AND METHODS: We used a 10-mm-wide optical cell cuvette with a 1-mm optical path length as the well...
October 27, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29072861/the-effect-of-low-level-laser-therapy-on-bone-healing-after-rapid-maxillary-expansion-a-systematic-review
#18
Foteini G Skondra, Despina Koletsi, Theodore Eliades, Eleftherios Terry R Farmakis
PURPOSE: The study aimed to systematically appraise the evidence on the effects of low level laser therapy (LLLT) on bone healing following rapid maxillary expansion (RME). METHODS: Electronic search was performed in MEDLINE, Scopus, and Embase databases using appropriate Medical Subject Heading terms, with no time restriction. ClinicalTrials.gov ( www.clinicaltrials.gov ) was also searched using the terms "low level laser therapy" and "maxillary expansion." SELECTION CRITERIA: Original research articles on human clinical trials that involved both RME and LLLT were included...
October 25, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29068756/long-term-effect-of-pulsed-nd-yag-laser-combined-with-exercise-on-bone-mineral-density-in-men-with-osteopenia-or-osteoporosis-1-year-of-follow-up
#19
Mohamed Salaheldien Mohamed Alayat, Ehab Mohamed Abdel-Kafy, Ali Abdel Monsif Thabet, Ahmed Salman Abdel-Malek, Tariq Helmi Ali, Eslam A Header
BACKGROUND: A pulsed Nd-YAG laser is an effective physiotherapy modality used as a class IV high-intensity laser therapy (HILT). PURPOSE: The aim of this study is to investigate the efficacy of HILT alone or combined with exercise (HILT+EX) on bone mineral density (BMD) after 24 weeks and at 1 year of follow-up in men with osteopenia or osteoporosis. METHODS: One hundred men with osteopenia or osteoporosis (mean age, 53.78 [2.89] years; weight, 80...
October 25, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29068750/long-term-therapeutic-outcomes-of-photodynamic-therapy-based-or-photocoagulation-based-treatments-on-retinal-capillary-hemangioma
#20
Chuangxin Huang, Zhen Tian, Kunbei Lai, Xiaojin Zhong, Lijun Zhou, Fabao Xu, Huasheng Yang, Lin Lu, Chenjin Jin
BACKGROUND: Retinal capillary hemangioma (RCH) is a rare and refractory eye tumor. OBJECTIVE: The aim of this study was to investigate the therapeutic efficacy of two laser-based therapies for RCH, photodynamic therapy (PDT), and focal photocoagulation-based treatment. MATERIALS AND METHODS: This was a retrospective study. Eight RCH patients (10 eyes) receiving laser treatment and followed up from November 2011 to December 2016 in our hospital were selected and their medical records reviewed...
October 25, 2017: Photomedicine and Laser Surgery
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