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Laser Therapy

Mansoreh Mirzaie, Esmael Yassini, Ardavan Etemadi, Atefeh Tavakoli, Nasim Chiniforush
Purpose: This study evaluated the micro-tensile bond strength of new and previous composite resin restorations after surface treatment with diamond bur and Er,Cr:YSGG laser at different power settings (2,3 and 4 W). Materials and methods: Micro-hybride composite resin was inserted in metallic mold 5 ×5 ×15 mm and cured for 40 sec according to manufacturer's instruction.12 blocks were made. The bonded surfaces of the 12 blocks so obtained were subsequently ground using Silicon Carbide papers 1200 grit, for 15 seconds under running water...
October 1, 2016: Laser Therapy
Mohamad Asnaashari, Leila Tahmasebi Ebad, Shiva Shojaeian
Background and aim: Use of laser technology in endodontics has greatly increased in the recent years due to the introduction of new wavelengths and methods and optimal antimicrobial and smear layer removal properties of lasers. This in vitro study aimed to compare the antibacterial effects of diode lasers of 810 nm and 980 nm wavelength on Enterococcus faecalis (E. faecalis) biofilm in the root canal system. Materials and methods: Fifty single-canal human anterior teeth were cleaned, shaped, sterilized and randomly divided into four groups namely two experimental, one positive and one negative control group...
October 1, 2016: Laser Therapy
Puneet Kumar, Mridula Goswami, Jatinder Kaur Dhillon, Ferah Rehman, Deepti Thakkar, Kusum Bharti
Background and aims: The aim of the study was to evaluate and compare the surface microhardness and surface morphology of permanent tooth enamel after Er,Cr:YSGG laser irradiation and Fluoride application. Materials and methods: One hundred and twenty premolars extracted for orthodontic purpose were used in the study and randomly divided into 6 groups. Group A was not subjected to any treatment. Group B was subjected to Er,Cr:YSGG laser irradiation. Group C was subjected to Er,Cr:YSGG laser irradiation followed by application of 2% NaF gel for 4 minutes...
October 1, 2016: Laser Therapy
Hiromu Ito, Hirofumi Matsui
Worldwide, the number of cancer cases is increasing. Typically, they are treated by either surgery or chemotherapy. However, these treatments may be undesirable in elderly patients or those who are under medication with antiplatelet drugs. Photodynamic therapy (PDT) represents a potentially attractive treatment option for these types of patients, since it does not involve surgery and has considerably reduced side effects compared to chemotherapy. Porphyrin, one of the most commonly used photosensitizers, has the convenient property of cancer-specific accumulation and therefore, is commonly used in PDT...
October 1, 2016: Laser Therapy
T Nakano, C Sato, M Yamada, A Nakagawa, H Yamamoto, F Fujishima, T Tominaga, S Satomi, N Ohuchi
Background and aims: Conventional water jet devices have been used for injecting fluid to lift up lesions during endoscopic submucosal dissection or endoscopic mucosal resection procedures. However, these devices cannot dissect the submucosal layer effectively. Here we aim to elucidate the dissection capability of a laser-induced pulsed water jet and to clarify the mechanism of dissection with layer selectivity. Materials (Subjects) and methods: Pulsed water jets were ejected from a stainless nozzle by accelerating saline using the energy of a pulsed holmium: yttrium-aluminum-garnet laser...
October 1, 2016: Laser Therapy
Taro Kono, Samantha Y Shek, Henry H L Chan, William F Groff, Kotaro Imagawa, Tadashi Akamatsu
Asian skin has a higher epidermal melanin content, making it more likely to develop adverse pigmentary reactions following laser surgery. The nanosecond lasers are the gold standard for the treatment of pigmented lesions, but the risk of complications, such as post-inflammatory hyperpigmentation, is increased in dark-skinned patients. Intense Pulsed Light (IPL) or long-pulsed lasers are available for treating superficial pigmented lesions, and fewer complications are seen when using these devices compared to the nanosecond lasers...
October 1, 2016: Laser Therapy
Masatoshi Jibiki, Tetsuro Miyata, Sachiko Futatsugi, Mitsumasa Iso, Yasutaka Sakanushi
Background and aims: In Japan, stripping under general anesthesia, lumbar anesthesia and tumescent local anesthesia has been used in the treatment of primary varicose veins due to saphenous vein insufficiency. However endovenous laser ablation (EVLA) using a 980 nm diode laser has received National Health Insurance (NHI) coverage in 2011, while EVLA using a 1470 nm diode laser with a radial 2-ring fiber has received coverage in 2014. As a result, the use of EVLA has become widespread in Japan. We herein report on the results of varicose veins treatment at our hospital...
October 1, 2016: Laser Therapy
Toshio Ohshiro
No abstract text is available yet for this article.
October 1, 2016: Laser Therapy
Shashi Kumar, Karthik Rao, Arun G Maiya, H Manjunath Hande, Animesh Hazari
No abstract text is available yet for this article.
June 29, 2016: Laser Therapy
Rana Al-Falaki, Francis Hughes, Reena Wadia, Christie Eastman, Elias Kontogiorgos, Samuel Low
Aims: This is an extended case series of patients treated with an Erbium, Chromium: Yttrium Scandium Gallium Garnet (Er,Cr:YSGG) laser as an adjunct to scaling for the management of intrabony defects. Materials & methods: 46 patients with 79 angular intrabony defects associated with pocket depths of >5mm, and a mean age of 53 ± 9 years presenting with chronic periodontitis were included in the analysis. All patients underwent a localized minimally invasive closed flap surgery utilizing Er,Cr:YSGG laser therapy...
June 29, 2016: Laser Therapy
Shahin Bayani, Shima Rostami, Farzaneh Ahrari, Iman Saeedipouya
Background and aims: This study aimed to evaluate the efficacy of ibuprofen, bite wafer and low power red and infrared lasers in orthodontic pain management. Subjects and methods: One hundred subjects were randomly assigned to 5 groups of 20 each. The patients in each group received one of the following treatments after the placement of fixed orthodontic appliances: 1. placebo medication, 2. ibuprofen, 3. bite wafer, 4. irradiation from a low level red laser (LLRL; 660 nm, 200 mW, 1 J/point, 6 points), 5. irradiation from a low level infrared laser (LLIL; 810 nm, 200 mW, 1 J/point, 6 points)...
June 29, 2016: Laser Therapy
Ferah Rehman, Gyanendra Kumar, Mridula Goswami, Jatinder Kaur Dhillon
Aim: The aim of this invitro study is to evaluate the shear bond strength of reattached fractured incisor fragments using Er,Cr:YSGG laser and conventional acid etching without additional tooth preparation. Materials and methods: Forty extracted human teeth were divided in two groups of 20 each (Groups A and B). In Group A, fractured surface was treated by an Er, Cr: YSGG laser system (Waterlase MD, Biolase Technology Inc., San Clemente, CA, USA) operating at a wavelength of 2,780 nm and frequency of 20 Hz...
June 29, 2016: Laser Therapy
Carlo Fornaini, Elisabetta Merigo, Michele Sozzi, Jean-Paul Rocca, Federica Poli, Stefano Selleri, Annamaria Cucinotta
Objectives: The introduction of diode lasers in dentistry had several advantages, principally consisting on the reduced size, reduced cost and possibility to beam delivering by optical fibbers. Up today only the wavelengths around 810 and 980 nm were the most utilized in oral surgery but recently more different lasers had been proposed. The aim of this study was to compare the efficacy of four diode laser wavelengths (810, 980, 1470 and 1950 nm) for the ablation of soft tissues. Material and methods: Specimens were surgically collected from the dorsal surface of four bovine tongues and irradiated by four different diode wavelengths...
June 29, 2016: Laser Therapy
Takafumi Ohshiro, Toshio Ohshiro, Katsumi Sasaki, Kazuo Kishi
Background and aims: Recently novel picosecond duration lasers (ps-lasers) have been developed for the treatment of multicolored and recalcitrant tattoos, and safety and efficacy have been reported. We therefore hypothesized that the ps-laser could be an alternative treatment for dermal pigmented lesions and performed a retrospective review to evaluate the efficacy and safety of the ps-laser. Subjects and methods: A retrospective photographic review of 10 patients with dermal pigmented lesions was performed (ages from 4 months to 52 yr), 6 nevus of Ota, 3 ectopic Mongolian spots and 1 Mongolian spots...
June 29, 2016: Laser Therapy
Takeshi Oinuma, Tetsuya Nakamura, Yoshiro Nishiwaki
Background and Aims: A national survey of photodynamic therapy (PDT) was carried out in order to understand the present situation in Japan and the efficacy of PDT for gastric cancer. Materials and Methods: A questionnaire concerning with PDT was sent to all hospitals performing or previously performed PDT. The answers were collected and analyzed. An additional investigation about efficacy of PDT for gastric cancer was conducted for the main 3 hospitals. Results: In 18 of 19 responded hospitals, PDT was performed for 386 cases of superficial early gastric cancer and for 27 cases of advanced gastric cancer...
June 29, 2016: Laser Therapy
Toshio Ohshiro
No abstract text is available yet for this article.
June 29, 2016: Laser Therapy
Masaya Yamauchi, Norihiro Honda, Hisanao Hazama, Shoji Tachikawa, Hiroyuki Nakamura, Yasufumi Kaneda, Kunio Awazu
BACKGROUND AND AIMS: There is an urgent need to develop an efficient strategy for the treatment of drug-resistant prostate cancer. Photodynamic therapy (PDT), in which low incident levels of laser energy are used to activate a photosensitizer taken up by tumor cells, is expected as a novel therapy for the treatment of prostate cancer because of the minimal invasive nature of PDT. The present study was designed to assess the efficacy of a novel vector approach combined with a conventional porphyrin-based photosensitizer...
March 31, 2016: Laser Therapy
Seiichi Maruyama
BACKGROUND: In recent years, facial rejuvenation using Intense Pulsed Light (IPL) is in demand and there have been many reports. However, hand rejuvenation, which aims to treat lentigines on the dorsal hand and wrinkles, is in demand but with few reports. In this study, hand rejuvenation was attempted using two wavelengths of a standard IPL system. It focuses mainly on improvement of lentigines, and efficacy on wrinkles on the dorsal hand will be discussed as well. SUBJECTS AND METHODS: The subjects were 128 Japanese patients (average age 58...
March 31, 2016: Laser Therapy
John Foley, David B Vasily, Jeanna Bradle, Catharine Rudio, R Glen Calderhead
BACKGROUND AND AIMS: For any committed athlete, getting back to conditioning and participation post-injury (return to play [RTP]) needs to be as swift as possible. The effects of near-infrared light-emitting diode (LED) therapy on pain control, blood flow enhancement and relaxation of muscle spasm (all aspects in the treatment of musculoskeletal injury) have attracted attention. The present pilot study was undertaken to assess the role of 830 nm LED phototherapy in safely accelerating RTP in injured university athletes...
March 31, 2016: Laser Therapy
Ahmed El Gamal, Carlo Fornaini, Jean Paul Rocca, Omid H Muhammad, Etienne Medioni, Annamaria Cucinotta, Nathalie Brulat-Bouchard
BACKGROUND AND AIMS: The objective of this study was to investigate the interaction of infrared laser light on Computer Aided Design and Computer Aided Manufacturing (CAD/CAM) ceramic surfaces. MATERIAL AND METHODS: Sixty CAD/CAM ceramic discs were prepared and divided into two different groups: lithiumdisilicate ceramic (IPSe.maxCADs) and Zirconia ceramic (IPSe.maxZirCADs). The laser irradiation was performed on graphite and non-graphite surfaces with a Carbon Dioxide laser at 5W and 10W power in continuous mode (CW mode) and with Neodymium Yttrium Aluminum Perovskite (Nd:YAP) laser at 10W...
March 31, 2016: Laser Therapy
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