نتایج جستجو برای: laser

تعداد نتایج: 183632  

Journal: یافته 2009

Akbari A1 1. Assistant Professor, Department of Physiotherapy, Faculty of Medicine, Zahedan University of Medical Sciences Abstract Background: Shoulder pain is the third most prevalent cause of musculoskeletal disorder after low back and cervical pains. Most of the shoulder symptoms are attributed to the rotator cuff. The objective of this study was to compare the effects of low-power ...

Background: Au nanoparticles (AuNPs) exhibit very unique physiochemical and optical properties, which now are extensively studied in a range of medical diagnostic and therapeutic applications. AuNPs can be used for cancer clinical treatment with minimal invasion. On the other hand, curcumin is a polyphenol derived from turmeric which is used for medical purposes due to its anti...

Journal: :journal of biomedical physics and engineering 0
a. amjadi biomedical physics and laser laboratory, physics department, sharif university of technology, tehran, iran f. motaghian biomedical physics and laser laboratory, physics department, sharif university of technology, tehran, iran

background: laser-tissue interaction on low-level laser therapy (lllt) has widespread medical applications (e.g., improved wound healing). the tensile strength of radiated tissue by lllt is known to be increased mainly because of cross collagen bands developed after radiation. objective: in this work, we studied the instantaneous effect of radiation of polarized laser beam on the viscoelastic t...

ثبوتی, فرهاد, خاتمی, مازیار,

Background and purpose: Low level lasers have been used in dentistry to stimulate orthodontic tooth movement and to inhibit the pain during tooth movements. Contradictory findings exist on this issue, therefore, this study evaluated the effect of laser therapy on pain during orthodontic tooth movement. Material and methods: In this clinical trial, 17 patients with extracted upper first premola...

Journal: :journal of dentistry, tehran university of medical sciences 0
soghra yassaei department of orthodontics, faculty of dentistry, shahid sadoughi university of medical sciences, yazd, iran. reza fekrazad department of periodontics, shahid beheshti university of medical sciences, tehran, iran. neda shahraki department of orthodontics, faculty of dentistry, shahid sadoughi university of medical sciences, yazd, iran.

increased duration of fixed orthodontic treatments leads to increased tooth root degeneration, gum inflammation and tooth caries. to decrease the time period of orthodontic treatment, it is essential to facilitate tooth movement or in other words increase the speed of bone remodeling. use of low level laser therapy is a method for achieving this goal.

Journal: :journal of lasers in medical sciences 0
soheila mokmeli department of medical laser, milad hospital, social security organization, tehran, iran mahrokh daemi department of surgery, sina hospital,tehran university of medical sciences, tehran, iran zahra ayatollahzadeh shirazi department of medical laser, milad hospital, social security organization, tehran, iran fatemah ayatollahzadeh shirazi college of science, tehran university, tehran, iran mitra hajizadeh department of internal ward, milad hospital, tehran, iran

introduction: : low level laser therapy (lllt) is gaining acceptance in clinical applications. for example, it is used as therapeutic modality in the repair of diabetic foot ulcer when conventional therapy was not effective, separately. the aim of this study is to determine the effect of local and travenous lllt for the healing of diabetic foot ulcer. methods:   this study contains 74 diabetic ...

Journal: :journal of lasers in medical sciences 0
mohammad asnaashari professor of endodontics, school of dentistry, shahid beheshti medical university, tehran, iran. shadi mohebi dentist,laser center of school of dentistry, shahid beheshti medical university, tehran, iran. payam paymanpour post graduate student of endodontics, school of dentistry, shahid beheshti medical university, tehran, iran.

introduction: post-endodontic treatment pain is a relatively common condition which needs analgesics for patient’s pain relief. low-level laser therapy (lllt) is suggested as a non-pharmacological and non-invasive treatment for dealing with painful conditions. the purpose of this study was to evaluate the pain relief effect of lllt after endodontic treatment. methods: eighty patients randomly r...

ژورنال: مجله دندانپزشکی 2016

Background and Aims: Nowadays lasers are used as alternatives to the tooth preparation because of reducing pain, bloodshed and stress. The aim of this study was to observe the effect of Er,Cr:YSGG laser on the dental hard tissues. Materials and Methods: For this studty, molar teeth with no caries or dental restoration and enamel cracks were used. The laser power were taken from 0.5, 1, 1.5, ...

Ali Frozanfar Amin Rahpeyma Hamid Reza Arbab Mohammad Ramezani, Saeedeh Khajehahmadi

  Objective(s): Recent investigations show that both proliferation and secretion of macromolecules by cells can be regulated by low level laser therapy (LLLT). The aim of this study was to determine whether LLLT could induce a bio-stimulatory effects on human gingival fibroblasts (HGF3-PI 53). Therefore, the effect of laser irradiation on human gingival cell proliferation and collage...

Amir Ghasemi, Leila Eftekhar, Majid Bargrizan, Marzieh Gholami, Mohammad Asnaashari, Yasaman Rezvani,

Background and Aim: Er,Cr:YSGG laser irradiation has been suggested as an effective method of cavity preparation and surface treatment to enhance the bond strength. The aim of this study was to assess the microshear bond strength of Fuji II LC glass ionomer (GI) cement to primary dentin following bur preparation and Er,Cr:YSGG irradiation. Materials and Methods: This in vitro, experimental stu...

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