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Photomedicine and Laser Surgery

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https://www.readbyqxmd.com/read/28937927/the-effects-of-photobiomodulation-delivered-by-light-emitting-diode-on-stem-cells-from-human-exfoliated-deciduous-teeth-a-study-on-the-relevance-to-pluripotent-stem-cell-viability-and-proliferation
#1
Katia Llanos do Vale, Durvanei Augusto Maria, Lara Cristina Picoli, Alessandro Melo Deana, Marcelo Betti Mascaro, Raquel Agnelli Mesquita Ferrari, Sandra Kalil Bussadori, Kristianne Porta Santos Fernandes
OBJECTIVE: Photobiomodulation (PBM) can modulate the proliferation of some types of stem cells. However, few reports have addressed the effects of PBM delivered by light-emitting diode (LED) on stem cells obtained from the pulp tissue of deciduous teeth. The aim of the present study was to investigate the effect of PBM delivered by red LED (630 nm, 75 mW, 37 mW/cm(2)) with different radiant exposures on the cell cycle, mitochondrial membrane potential, and senescence of stem cells from human exfoliated deciduous teeth (SHED)...
September 21, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28937916/nanoparticles-for-advanced-photodynamic-therapy-of-cancer
#2
Heidi Abrahamse, Cherie Ann Kruger, Sania Kadanyo, Ajay Mishra
The world widespread rise in cancer incidence has caused an increase in the demand for effective and safe materials for treatment. One of the most prevalent forms of treatment for cancer is photodynamic therapy (PDT), which is seen as an alternative to radiotherapy, as well as chemotherapy. In more recent years, researchers are exploring new nanotechnology-based strategies to improve the effectiveness of PDT. OBJECTIVE: The objective of this review is to explore the current trends and research findings associated with PDT and the development of nanotechnology as treatment modality for cancer...
September 21, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28922064/erbium-yttrium-aluminum-garnet-laser-activated-sodium-hypochlorite-irrigation-a-promising-procedure-for-minimally-invasive-endodontics
#3
Xiaogang Cheng, Tiantian Tian, Yu Tian, Doudou Xiang, Jun Qiu, Xiaohua Liu, Qing Yu
OBJECTIVE: This study was to evaluate the potential of Erbium:Yttrium Aluminum Garnet laser-activated sodium hypochlorite irrigation (Er:YAG + NaOCl) for minimally invasive endodontics (MIE). BACKGROUND DATA: Er:YAG laser irradiation can dramatically enhance the penetration of NaOCl, which may be a promising protocol for MIE. METHODS: Extracted human teeth were contaminated with Enterococcus faecalis for 4 weeks. The infected canals were then shaped to different apical terminal working widths (ATWW, 15#/0...
September 14, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28742438/effect-of-low-level-laser-therapy-on-bone-regeneration-during-osseointegration-and-bone-graft
#4
Randa Zein, Wayne Selting, Stefano Benedicenti
BACKGROUND: The effect of low-level laser therapy (LLLT) on bone regeneration during osseointegration and bone graft is very controversial. Despite many positive reports of in vitro and in vivo studies and more than 50 randomized clinical trials claiming a positive effect of photobiomodulation (PBM), many reports found no significant effect of lasers. OBJECTIVE: The aim of this study was to evaluate studies correlating PBM and bone regeneration and to assesses parameters that produce positive results based on dose and output power used...
July 21, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28677985/achilles-tendon-penetration-for-continuous-810%C3%A2-nm-and-superpulsed-904%C3%A2-nm-lasers-before-and-after-ice-application-an-in-situ-study-on-healthy-young-adults
#5
Sturla Haslerud, Ingvill Fjell Naterstad, Jan Magnus Bjordal, Rodrigo Alvaro Brandão Lopes-Martins, Liv Heide Magnussen, Patrícia Sardinha Leonardo, Ricardo Henrique Marques, Jon Joensen
BACKGROUND AND OBJECTIVE: There is a lack of knowledge about the influence tissue temperature may have on laser light penetration and tendon structure. The purpose of this study was to investigate whether penetration of laser energy in human Achilles tendons differed before and after ice pack application. MATERIALS AND METHODS: The Achilles tendons (n = 54) from 27 healthy young adults were irradiated with two class 3B lasers (810 nm 200 mW continuous mode laser and a 904 nm 60 mW superpulsed mode laser)...
June 30, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28792860/combination-treatment-with-photodynamic-therapy-and-laser-ablation-in-breast-cancer-an-animal-model-study
#6
Jeeyeon Lee, Ho Yong Park, Wan Wook Kim, Ji Yun Jeong, Yong-Deok Lee, Mi-Hwa Choi, Sehoon Kim, Ji-Young Park, Jin Hyang Jung
PURPOSE: Minimally invasive treatments for early breast cancer have been reported. The objective of this study was to evaluate and compare two such treatments, laser ablation and photodynamic therapy (PDT), regarding their therapeutic efficacy for breast cancer. METHODS: Breast tumors were induced in 12 mice models. The treatment options were classified into four groups: control group (without any treatment, A), group treated only with laser ablation (B), group treated only with PDT (C), and group treated with the combination of laser ablation followed by PDT (D)...
September 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28727952/time-resolved-laser-induced-fluorescence-spectroscopy-as-a-guidance-tool-for-laser-lithotripsy-of-gallbladder-stones
#7
Ali Shuaib, Jahja Kokaj, Yacoub Makdisi, Goran Pichler, Abdullah Husain, Sami Asfar
BACKGROUND AND OBJECTIVES: Although laser lithotripsy for fragmentation of gallbladder stones has been applied successfully in many clinical situations, this approach has two major limitations: (1) the potential to damage or perforate the bile duct and (2) the efficiency can be affected by the chemical composition of the gallstones. The present study evaluated the use of time-resolved laser-induced fluorescence spectroscopy to classify stone types and distinguish stone from tissue. MATERIALS AND METHODS: Ex vivo time-resolved laser-induced fluorescence analysis (excitation wavelength λex = 400 nm and emission wavelength = 450-700 nm) of 54 gallbladder stones and seven gallbladder tissue samples was conducted...
September 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28650740/in-vivo-investigation-of-the-safety-and-efficacy-of-pulsed-dye-laser-with-two-spot-sizes-in-port-wine-stain-treatment-a-prospective-side-by-side-comparison
#8
Wenxin Yu, Hanru Ying, Yijie Chen, Yajing Qiu, Hui Chen, Yunbo Jin, Xi Yang, Tianyou Wang, Gang Ma, Xiaoxi Lin
OBJECTIVE: Pulsed dye laser (PDL) with 7 and 10 mm spot sizes is widely used on a regular basis for the treatment of port-wine stain (PWS). BACKGROUND DATA: No studies have reported on the differences in efficacy outcomes resulting from the use of different laser spot sizes in the treatment of PWS by PDL. Thus, an in vivo investigation into the differences in safety and efficacy of treatment between two spot sizes (7 vs. 10 mm) of PWS by PDL was conducted. MATERIALS AND METHODS: A total of 35 PWS patients underwent three treatment sessions by using a 595 nm wavelength PDL (Vbeam(®), Candela Corp) with two laser settings: (1) 7 mm spot size, radiant exposure of 12 J/cm(2) and (2) 10 mm spot size, radiant exposure of 10 J/cm(2)...
September 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28632456/effect-of-carbon-dioxide-laser-on-increasing-vestibular-depth-in-cleft-lip-and-palate-patients
#9
Sogra Yassaei, Hossein Aghili, Alireza Navab Azam, Mahjobeh Gholdani Moghadam, Isa Safari
BACKGROUND: Shallow upper buccal sulcus deformity in cleft lip and palate patients is one of the common secondary deformities after primary cleft lip and palate repair; this deformity may prevent or complicate orthodontic and prosthodontic procedures causing aesthetic and functional problems. A number of methods are described to increase the anterior maxillary sulcus in these patients. PURPOSE: This study assessed the use of a carbon dioxide laser (CO2) to increase the sulcus depth...
September 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28628423/current-considerations-for-low-level-laser-therapy-photobiomodulation-therapy-in-the-management-of-side-effects-of-chemoradiation-therapy-for-cancer
#10
Kenji Yoshida
No abstract text is available yet for this article.
September 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28537820/photodynamic-diagnosis-and-narrow-band-imaging-in-the-management-of-bladder-cancer-a-review
#11
Piotr Kutwin, Tomasz Konecki, Marcin Cichocki, Piotr Falkowski, Zbigniew Jabłonowski
BACKGROUND: Bladder cancer is the most common malignancy of the urinary tract. Its proper diagnosis and efficient treatment is still considered a challenge in urology today. White light cystoscopy is a gold standard for the diagnosis, follow-up, and endoscopic treatment of bladder cancer. To improve the efficacy of bladder cancer management, photodynamic diagnosis and narrow-band imaging have been introduced to the urological armamentarium. OBJECTIVE AND METHODS: The article presents the current state of knowledge of technical solutions that are intended to improve the diagnosis and management of bladder cancer...
September 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28445107/hypodermal-adipose-tissue-sonoelastography-for-monitoring-treatment-response-in-patients-with-plaque-psoriasis
#12
Annunziata Dattola, Simone Altobelli, Salvatore Marsico, Domenico Plastina, Steven P Nistico, Armando Cavallo, Roberto Floris, Luca Bianchi, Manlio Guazzaroni
BACKGROUND: Psoriasis (PsO) is a multifactorial chronic and relapsing skin disease that affects about 125 million people in the world. Several studies have demonstrated the link between adipose tissue, inflammation, and PsO. The purpose of our study is to evaluate hypodermal adipose tissue inflammation underneath PsO plaques quantifying tissue elasticity with sonoelastography before and after treatment. The study was conducted at the Department of Dermatology of the University of "Rome Tor Vergata" and Department of Radiology of the University of "Rome Tor Vergata...
September 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28375684/minimally-invasive-excision-of-epulides-with-a-co2-laser-a-retrospective-study-of-90-patients
#13
Astrid Truschnegg, Stephan Acham, Lumnije Kqiku, Norbert Jakse, Alfred Beham
OBJECTIVE: It is the aim of this study to evaluate if the CO2 laser can beneficially be applied for excising epulides. BACKGROUND DATA: The standard procedure for treating epulides involves the excision of the hyperplastic tissue followed in most cases by the removal of parts of the underlying bone and the final closure of the wound by a flap. The use of the CO2 laser for the treatment of epulides has been documented only in isolated case reports and very few case series...
September 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28358663/a-retrospective-evaluation-of-partial-glossectomy-for-early-tongue-cancer-using-a-carbon-dioxide-laser
#14
Akira Kimoto, Hiroaki Suzuki, Junya Yamashita, Junichiro Takeuchi, Kousuke Matsumoto, Yui Enomoto, Takahide Komori
OBJECTIVE: The purpose of this study was to retrospectively evaluate the postoperative results of partial glossectomy for early tongue cancer using a carbon dioxide laser (CO2 laser). BACKGROUND DATA: CO2 lasers are frequently used for the excision or treatment of soft tissue in a range of diseases, including oral cancer, leukoplakia, mucocele, anomalies of the labial and lingual frenum, and peri-implantitis. MATERIALS AND METHODS: We retrospectively reviewed 31 primary cases of early superficial tongue cancer that were treated using CO2 lasers...
September 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28783466/the-history-of-photobiomodulation-endre-mester-1903-1984
#15
Andrew Mester, Adam Mester
No abstract text is available yet for this article.
August 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28783465/photobiomodulation-in-the-prevention-of-tooth-sensitivity-caused-by-in-office-dental-bleaching-a-randomized-placebo-preliminary-study
#16
Andrea Paiva Corsetti Calheiros, Maria Stella Moreira, Flávia Gonçalves, Ana Cecília Correa Aranha, Sandra Ribeiro Cunha, Carolina Steiner-Oliveira, Carlos de Paula Eduardo, Karen Müller Ramalho
OBJECTIVE: Analyze the effect of photobiomodulation in the prevention of tooth sensitivity after in-office dental bleaching. BACKGROUND DATA: Tooth sensitivity is a common clinical consequence of dental bleaching. Therapies for prevention of sensitivity have been investigated in literature. MATERIALS AND METHODS: This study was developed as a randomized, placebo blind clinical trial. Fifty patients were selected (n = 10) and randomly divided into five groups: (1) control, (2) placebo, (3) laser before bleaching, (4) laser after bleaching, and (5) laser before and after bleaching...
August 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28783464/efficacy-of-multiwave-locked-system-laser-on-pain-and-function-in-patients-with-chronic-neck-pain-a-randomized-placebo-controlled-trial
#17
Mohamed Salaheldien Alayat, Ahmed Mohamed Elsoudany, Mohamed Ebrahim Ali
BACKGROUND: Multiwave locked system (MLS) laser therapy utilizes the synchronized emission of an 808 nm continuous laser and a 905 nm pulsed laser. It is postulated that MLS enables greater penetration and therapeutic benefit than single-wavelength low-level laser therapy (LLLT). OBJECTIVE: The aim of this research was to evaluate the efficacies of MLS laser therapy and the 830 nm laser in the treatment of patients with chronic neck pain (CNP). MATERIALS AND METHODS: Seventy-five patients with CNP (mean age 46...
August 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28557664/efficacy-of-laser-photobiomodulation-on-morphological-and-functional-repair-of-the-facial-nerve
#18
Daniela Vieira Buchaim, Jesus Carlos Andreo, Rui Seabra Ferreira Junior, Benedito Barraviera, Antonio de Castro Rodrigues, Mariana de Cássia Macedo, Geraldo Marco Rosa Junior, Andre Luis Shinohara, Iris Jasmin Santos German, Karina Torres Pomini, Rogerio Leone Buchaim
OBJECTIVE: Evaluate the efficacy of low-level laser therapy (LLLT) on qualitative, quantitative, and functional aspects in the facial nerve regeneration process. MATERIALS AND METHODS: Forty-two male Wistar rats were used, randomly divided into a control group (CG; n = 10), in which the facial nerve without lesion was collected, and four experimental groups: (1) suture experimental group (SEG) and (2) fibrin experimental group (FEG), consisting of 16 animals in which the buccal branch of the facial nerve was sectioned on both sides of the face; an end-to-end epineural suture was performed on the right side, and a fibrin sealant was used on the left side for coaptation of the stumps; and (3) laser suture experimental group (LSEG) and (4) laser fibrin experimental group (LFEG), consisting of 16 animals that underwent the same surgical procedures as SEG and FEG with the addition of laser application at three different points along the surgical site (pulsed laser of 830 nm wavelength, optical output power of 30 mW, power density of 0...
August 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28358662/effect-of-laser-photobiomodulation-with-gradual-or-constant-doses-in-the-regeneration-of-rats-mental-nerve-after-lesion-by-compression
#19
Robson Tetsuo Sasaki, Natália Garrido Grossi, Rafael Tardeli Zeni, Daniel Martinez Saez, Ivair Donizeti Gonçalves, Marcelo Cavenaghi Pereira da Silva
OBJECTIVE: Assess morphologically the efficacy of constant dose (CD) or gradual dose (GD) in photobiomodulation therapy (PBMT) during the regeneration process of rats' mental nerve after compression lesion. MATERIALS AND METHODS: Forty-eight male Wistar rats were used and divided into four groups (n = 12): negative control (NC): lesion by compression; positive control (PC): no lesion; GD: lesion by compression and PBMT with GD; and CD: lesion by compression and PBMT with CD...
August 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28294697/efficacy-of-low-level-laser-therapy-in-subjective-tinnitus-patients-with-temporomandibular-disorders
#20
Nermin Demirkol, Aslihan Usumez, Mehmet Demirkol, Fatih Sari, Cihan Akcaboy
OBJECTIVE AND BACKGROUND: Tinnitus is an apparent sound, perceived in the ear with no stimulus. It has been described as a sound originating from the brain. It affects 17% of the general population. Etiological factors for tinnitus include temporomandibular joint disorders (TMJ, TMD) and Costen's syndrome. The aim of treatment is to eliminate the tinnitus or at least decrease its apparent volume. MATERIALS AND METHODS: In total, 46 patients referred to our department with bilateral subjective tinnitus with TMDs were selected for this study...
August 2017: Photomedicine and Laser Surgery
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