introduction: this study compared the efficacy of light-activated low-power laser, 2% chlorhexidine (chx) and 2.5% naocl in eliminating enterococcus faecalis ( e. faecalis) from the root canal system. methods and materials: the root canals of 60 maxillary central incisors were contaminated with e. faecalis and then the bacteria were incubated for 24 h. all the root canals were instrumented in a...

introduction: an attack of acute myocardial infarction (mi) poses the threat of great damage to cardiac tissue. operative therapeutic modalities such as coronary artery bypass grafting (cabg) may enhance myocardial perfusion in high-grade coronary vasculature occlusions. it has been shown previously that low-level laser therapy (lllt) significantly reduces infarct size following induction of my...

PURPOSE To report successful treatment with transluminal Nd:YAG laser embolysis (TYE) combined with urokinase thrombolysis for reperfusion of occluded branch retinal arteries with visible emboli. METHODS A total of 34 eyes from 34 patients with acute, severe vision loss secondary to a branch retinal artery occlusion with visible emboli and retinal whitening were examined. Each patient was adm...

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...

background:  intravenous  recombinant  tissue plasminogen  activator  (rt-pa) is an approved  treatment for acute ischemic stroke within 4.5 h of symptoms onset. decompressive craniectomy (dc) has been  shown  as an effective  therapeutic  modality in malignant  middle cerebral  artery (mca) infarction. as rt-pa could result in hemorrhagic  complication during or after any surgery dc may be ass...

Intravenous laser blood irradiation was first introduced into therapy by the Soviet scientists EN.Meschalkin and VS.Sergiewski in 1981. Originally this method was developed for the treatment of cardiovascular diseases. Improvement of rheologic properties of the blood as well as improvement of microcirculation and reduction of the area of infarction has been proved. Further, reduction of dysrhyt...

Combination of photothermal and photodynamic therapy (PTT/PDT) offer unique advantages over PDT alone. However, to achieve synergetic PDT/PTT effect, one generally needs two lasers with different wavelengths. Near-infrared dye IR-780 could be used as photosensitizer both for PTT and PDT, but its lipophilicity limits its practical use and in vivo efficiency. Herein, a simple multifunctional IR78...

introduction: chemotherapy-induced oral mucositis (com) is a common, debilitating complication of cancer therapy. the aims of this study were to evaluate the effect of low level laser therapy (lllt) on prevention of com in patients with hematologic malignancies. methods: fifty-five patients hospitalized to undergo chemotherapy in imam hospital were included into the study. these patients were d...

introduction: the aim of this study was to determine the histologic effect of low level laser therapy (lllt) with or without the use of mineral trioxide aggregate (mta) on exposed pulp tissues of dogs. methods: twenty-five premolar teeth in three healthy mature dogs were randomly divided into five groups. in group 1, the pulp tissue was capped with mta. in groups 2 and 3, before capping with mt...

ulcerative colitis is a mucosal-inflammatory disease that usually involves the rectum and extends proximally to involve all or part of the colon. medications for treatment include anti-inflammatory agents such as 5-asa compounds, systemic and topical corticosteroids and immunomodulators. a 33 year-old female and 52 year-old male both diagnosed with severe active ulcerative colitis who were resi...