the standards of endodontics have constantly been raised in the last 25 years by practitioners’ researches and their interest. most of the scientists believe the recent developments and the use of lasers as the most exciting achievement in endodontic treatment. nowadays, lasers are being used in endodontics to improve the prognosis of the root-filled teeth. the implement of suitable wavelengths...

introduction: temporomandibular disorders (tmd) lead to masticatory muscle pain, jaw movement disability and limitation in mouth opening. pain is the chief complaint in 90% of the tmd patients which leads to disability and severe socioeconomic costs. the purpose of this study was to evaluate the therapeutic effects of low level laser therapy (lllt) compared to pharmacotherapy with nsaids (napro...

objectives: the purpose of this experimental study was to evaluate the efficacy of low level laser therapy (lllt) for pain reduction after midpalatal expansion in rats.   materials and methods: sixty male sprague six-week old rats weighing 180±10g were divided into seven groups (two experimental groups of 24 rats and one control group of 12 rats). the experimental groups were subjected to expan...

background: numerous in vitro reports suggest that low level laser therapy (lllt) affects cellular processes by biostimulation, however most of them emphasize on using visible light lasers which have low penetration. the aim of this study was to determine the effect of infrared laser light (which is more useful in clinic because of its higher penetration) on secretion of fibroblast growth facto...

one of the world's major mineral dust source regions lies along the border between iran and afghanistan. in this studyit is hypothesized that a low-level jet may play in role in generating the intensity of this source region. the presence of alow-level jet east of the seistan mountains is documented here for the first time. the jet exists mainly from may toseptember and has a core at 850 mb. ma...

introduction: photobiostimulation with low level laser (lll) has been used in medicine for a long time and its effects have been shown in many diseases. some studies have evaluated the effect of lll on androgenic alopecia. one of the most important limitations of the use of lll in the treatment of alopecia is the requirement for multiple sessions, which is hardly accepted by patients. this stud...

introduction: laser phototherapy is used for the treatment of chemotherapy-induced oral mucositis in patients with leukemia, although there are limited data supporting the safety of this method. this study aimed to evaluate the effect of different doses of low-level laser on proliferation of acute myeloid leukemia (aml) cell line (kg-1a) in vitro. methods: a plastic flask containing 5,000,000 k...

introduction: carpal tunnel syndrome (cts) is the most common type of entrapment neuropathy. conservative therapy is usually considered as the first step in the management of cts. low level laser therapy (lllt) is among the new physical modalities, which has shown therapeutic effects in cts. the aim of the present study was to compare the effects of applying laser and splinting together with sp...

introduction: tinnitus is defined as a perception of sound without an external acoustic stimulus. due to large number of causes and limited knowledge of its pathophysiology, tinnitus still remains an obscure symptom. methods: this was a cross-sectional study on 120 patients with tinnitus and sensorineural hearing loss who were randomly divided into two groups; one group received low-level laser...