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Laser Therapy

Edward Ram, Gil N Bachar, Yuri Goldes, Samia Joubran, Lea Rath-Wolfson
Background: Hemorrhoids are a common anorectal condition with a major medical and socioeconomic impact. Owing to the high incidence of symptomatic hemorrhoids in the adult population together with the risk of complications of traditional surgery, researchers are seeking less invasive methods of hemorrhoidal treatment.The aim of this study was to present our experience with the mini-invasive Doppler guided hemorrhoidal laser procedure (HeLP) in symptomatic 2nd and 3rd degree hemorrhoids with absent or minimal mucosal prolapse...
June 30, 2018: Laser Therapy
C Philip Gabel, James Carroll, Keith Harrison
Background: The effects of Low Level Light Therapy (LLLT) on cellular function arise predominantly from stimulation of ATP production and reduction of oxidative stress. These effects are dose dependent and a function of beam irradiance and irradiation time. Human sperm motility has been shown to increase with LLLT irradiation. The objective of this study was to investigate the effects of laser and Light Emitting Diode (LED) LLLT photobiomodulation on human spermatozoa motility and DNA integrity...
June 30, 2018: Laser Therapy
Muhammet Kerim Ayar
Background and aims: Adhesion durability of resin adhesives with Er,Cr:YSGG laser irradiated-enamel has been rarely investigated in the literature. Thus, the present study evaluated the influence of long-term water storage (12-month) on resin bond strength with the enamel irradiated with Er,Cr:YSGG laser irradiation deployed different settings. Materials and methods: The flattened enamel samples of 35 bovine teeth, which were embedded into acrylic blocks, were randomly divided into 7 groups (n = 5), according to surface treatments using Er,Cr:YSGG laser with different parameters 6 W/20 Hz, 6 W/35 Hz, 6 W/50 Hz, 3 W/20 Hz, 3 W/35 Hz, 3 W/50 Hz or no laser treatment (Bur-treating as a control)...
June 30, 2018: Laser Therapy
Soghra Yassaei, Hengameh Zandi, Hossein Aghili, Elahe Rafiei, Neda Mosayebi
Background and aims: This study was done to compare the antibacterial effect of Photodynamic therapy (PDT) on streptococcus mutans ( S. mutans ) using two different light sources and photosensitizers (PS). Materials and methods: Five groups were studied in this research:no light and no toluidine blue ortho (TBO) as PS for control group, irradiation only (CO2 laser or Nd:YAG laser), and irradiation with PS (CO2 laser and TBO or Nd:YAG laser and TBO). Standard suspensions of S...
June 30, 2018: Laser Therapy
Masoumeh Hasani Tabatabaei, Nasim Chiniforush, Seyedeh Fatemeh Namdar
Background and aims: Data are limited about the effect of ceramic primers on the bond of zirconia to restorative resin composite. The aim of this study was to assess the effect of different surface treatments and two ceramic primers on shear bond strength (SBS) of zirconia to restorative resin composite. Materials and methods: 100 samples of zirconium ceramic blocks were randomly divided into 5 groups (n = 20) and received the following surface treatments: a)Control groupb)AL2 O3 abrasionc)Nd:YAG laserd)Er:YAG lasere)Bur preparation...
June 30, 2018: Laser Therapy
Carlo Fornaini, Elisabetta Merigo, Federica Poli, Jean-Paul Rocca, Stefano Selleri, Giuseppe Lagori, Annamaria Cucinotta
Background and Aim: An important surgical goal is to provide a first intention wound healing without trauma produced by sutures and for this aim in the past several methods have been tested. The aim of this ex vivo preliminary study was to demonstrate the capacity of a 1070 nm pulsed fiber laser to treat the dental fractures by enamel and dentine melting with the apposition of hydroxyapatite nanoparticles as filler. Methods: Out of thirty freshly-extracted human third molars, decay-free, twenty-four cylinders of 5 mm thickness were obtained to perform the test...
June 30, 2018: Laser Therapy
Seyed Masoud Mojahedi, Mahin Bakhshi, Somayyeh Babaei, Aida Mehdipour, Hamid Asayesh
Background and aims: Physiologic gingival pigmentation (PGP) is the most common type of gingival pigmentation causing esthetic concerns particularly in gummy smile patients. Laser therapy is an effective and noninvasive treatment modality for such patients. This study aimed to evaluate the efficacy of diode laser for treatment of PGP. Subjects and methods: This quasi-experimental study (one-group pretest-post-test design) was conducted on 20 patients complaining of gingival melanin pigmentation...
June 30, 2018: Laser Therapy
P Nahas, T Zeinoun, M Namour, T Ayach, S Nammour
Background and aims: Physical and chemical composition of dentin is subject to modification when irradiated with Er:YAG laser. Temperature rise causes water evaporation and micro-mechanical ablation of dentin. The misuse of laser parameters could affect negatively dentin collagen fibers leading to failure in bonded composite restorations. The aim of this in vitro study was to evaluate the effect of Er:YAG laser radiation at different levels of energy on the morphology of thermally affected dentin layer...
June 30, 2018: Laser Therapy
Toshio Ohshiro
No abstract text is available yet for this article.
June 30, 2018: Laser Therapy
Yoko Kishi, Kenta Kikuchi, Mariko Hasegawa, Kenjiro Ohgushi, Akihiro Igarashi, Masahiro Hatanaka, Junko Fujino, Hitoshi Ikeda
Background and aims: It is generally thought that bleeding from a hemangioma is difficult to stop. With development of the long pulse dye laser (LPDL), it has become possible to treat hemangioma with a large blood vessel diameter. Thus, it is effective in treating infantile hemangioma and pyogenic granuloma. Materials and methods: Five patients who visited our hospital from July 2015 to July 2017 due to hemorrhagic hemangioma were treated using a flash lamp excitation pulse dye laser with parameters of 7 mm spot size, 3 msec pulse width, fluence 12-14J/cm2 , DCD 30 msec, and delay 30 msec...
March 31, 2018: Laser Therapy
Chikara Oshima, Hitoshi Nakazawa, Hideaki Izukura, Midori Miyagi, Akito Mizutani, Takashi Harada, Toshio Ohshiro, Satoru Ebihara
Background and Aims: Peripheral nerve injury is one of the frequent complaints which is seen in the outpatient clinic of our medical institute. In previous studies we have reported on the benefits of low level laser therapy (LLLT) for central nerve system disorders, namely cerebrovascular accidents and cerebral palsy. The present study is a report on our experience of the effects of LLLT for peripheral nerve palsy. Materials and Methods: Over the past 5 years, 13 subjects visited the out-patient clinic with the chief complaint of radial nerve palsy caused by compression of the nerve through with abnormal positioning, and sleeping posture at night...
March 31, 2018: Laser Therapy
Ahmed El Gamal, Etienne Medioni, Jean Paul Rocca, Carlo Fornaini, Nathalie Brulat-Bouchard
Background and aims: The purpose of this study is to determine the effect of CO2 laser irradiation in comparison with sandblasting (Sb), hydrofluoric acid (Hf) and silane coupling agent (Si) on shear bond strength (SBS) of resin cement to CAD/CAM ceramics bonded to dentin. Material and Methods: Forty-eight (CAD/CAM) ceramic discs were prepared and grouped by material, i.e. lithium disilicate (Emax CAD) and zirconia ceramic (Emax ZirCAD), distributed into four different groups: group A, lithium disilicate (Li) CO2 /HF/Si; group B, Li: HF/Si; group C, zirconia (Zr) CO2 /Sb/Si; group D, Zr: Sb/Si...
March 31, 2018: Laser Therapy
Scott Evan Eder
Background and Aim: Fractional CO2 lasers have been shown to provide improvement of vulvovaginal atrophy (VVA). The aim of the current study was to assess the early effect of a fractional CO2 laser system in treating postmenopausal women with clinical symptoms of VVA. Methods: 28 healthy post-menopausal women (mean age 60.1 ± 5.55 years) with VVA-related symptoms were treated with fractional CO2 laser 3 times, in 4-week intervals. At each study visit, VHIS score and VVA symptom severity were recorded...
March 31, 2018: Laser Therapy
Pitchanun Bundidpun, Rungtiwa Srisuwantha, Narongsak Laosrisin
Background and aims: Photodynamic therapy (PDT) is a potential strategy to eliminate infection in the specific tissue. It uses lower-power laser to activate a photosensitizing agent. Studies have shown the benefit of PDT in the periodontal treatment. The aim of this study was to evaluate the periodontal changes after applying PDT as an adjunct to one visit full-mouth SRP (scaling and root planing) with subgingival piezoelectric ultrasonic scaler compared with full-mouth SRP alone. Methods: A split-mouth randomized clinical trial was designed...
March 31, 2018: Laser Therapy
Yumi Hirano, Tsukasa Isago, Katsuhiro Kure, Takashi Yamaki
Objective: We report relationship between complications and predictive factors of occurrence with multivariate analysis for cases of laser treatment under general anesthesia.Study Design: Pediatric patients (330 cases, aged 1 to 15 years old) who underwent laser treatment under inpatient general anesthesia against body surface hemangiomas or melanocytosis were examined for the complications. Methods: Retrospective study from medical and anesthesia records, statistical assessment was carried out using multivariate analysis by univariate and logistic regression analysis, and p value less than 0...
March 31, 2018: Laser Therapy
Kouji Ogasawara
Background and aims: Eradication failures are increasing with the increasing antibiotic resistance of Helicobacter pylori .We examined the basic effect of methylene blue (MB) with sodium bicarbonate (NaHCO3 ) on H. pylori eradication using antimicrobial chemotherapy activated by light. Material and methods: When NaHCO3 was added to MB, the pH became basic. We smeared H. pylori on a medium with basic MB and irradiated it using a red light-emitting diode with a wavelength of 660 nm...
March 31, 2018: Laser Therapy
Penny J Smalley
No abstract text is available yet for this article.
March 31, 2018: Laser Therapy
Toshio Ohshiro
No abstract text is available yet for this article.
March 31, 2018: Laser Therapy
Carlo Fornaini, Elisabetta Merigo, Federica Poli, Chiara Cavatorta, Jean-Paul Rocca, Stefano Selleri, Annamaria Cucinotta
Background and Aims: The aim of this ex vivo study was to demonstrate the performances of 1070 nm fiber lasers for the ablation of oral tissues through the evaluation of the histological modifications made by a blind pathologist and the measurement of the thermal elevation during laser irradiation by a sensor based on a fiber Bragg grating. Materials and Methods: The source used was a pulsed fiber laser emitting at 1070 nm, with 20 W maximum average output power and 100 ns fixed pulse duration...
December 31, 2017: Laser Therapy
Vinod Chandel, Babita Jangra, Nishant Khurana, Amit Garg, Devashish
Background and Aim: Venous malformations (VMs) are slow-flow vascular anomalies composed of ectatic venous channels. Its management with Er,Cr:YSGG laser has been proven effective. In the present case a teenage patient reported with a bluish lesion, soft inconsistency on the dorsal aspect of tongue. The lesion was removed with Er, Cr: YSGG laser (2780 nm) with minimal anaesthetic infiltration. Results: Patient reported no postoperative pain. Clinical follow up after three months showed excellent results and uneventful healing...
December 31, 2017: Laser Therapy
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