introduction: the american academy of orofacial pain defined temporomandibular disorders (tmds) as”a collective term that embraces a number of clinical problems that involve the masticatory muscles, the tmj (temporomandibular joint), and the associated structures”. pain and dysfunctional symptoms or signs such as limitations in opening, asymmetric jaw movements and tmj sounds are the most commo...

introduction: dentin hypersensitivity is one of the most common complications that affect patients after periodontal therapy. recently low level laser therapy has been introduced as a new treatment modality and has produced beneficial results. the purpose of this study is to evaluate the effect of low level laser therapy toothbrushes in reduction of dentin hypersensitivity. methods: in this pil...

background postoperative pain is a common complication that can lead to serious morbidities and delayed recovery. objectives the aim of this study was to investigate the effect of low-level laser therapy on acute pain after tibial fracture surgery. patients and methods in this randomized clinical trial, 54 patients who were candidate for tibial fracture surgery were allocated randomly to two gr...

the key role of chemokine receptor cxcr4 in the maintenance of stemness property of stem cells has been shown recently. the low level laser irradiation (llli) is being used currently in a wide variety of clinical cases as a therapeutic tool for wound healing, relieving pain and destroying tumor cells. the aim of this study was to evaluate the effect of llli mimicking low level laser therapy (ll...

introduction : surgical removal of third molar is one of the most common surgical procedures in oral surgery and is often associated with complications such as pain, swelling and trismus. the main purpose of the study was to assess  the  therapeutic  effect  of  low  level  laser  (lll)  irradiation  on postoperative edema and wound healing compared to routine postoperative management after thi...

an extensive study was undertaken to investigate on the overall film badge service performance with which occupational radiation, exposures are reported in iran, the study involved the analysis of film badges exposed to x-and gamma rays and beta particles. for test exposures, x-rays between 60 and 140 kvpco-60 gamma radiation and sr-90 beta particles were used. the actual delivered dose equival...

o bjectives: one major drawback of orthodontic treatment is its long duration due to slow tooth movement and the pain at the onset of treatment following application of forces. there is controversy regarding the efficacy of laser for decreasing the treatment time and pain of orthodontic treatment. the purpose of this study was to investigate the effect of low level diode laser on the rate of or...

introduction: transient cavitations induced by low frequency irradiation of ultrasound can be used to treat tumors. previous studies in in-vitro experiments have shown that induced cavitation by dual or multiple frequencies of ultrasound is greater than induced cavitation by single frequency irradiation. in this study, we compared and evaluated the treatment effects of dual frequency irradiatio...

introduction: acoustic transient cavitation is the primary mechanism of sonochemical reaction and has potential use for tumor treatment. in this study, the in vivo anti-tumor effect of simultaneous dual-frequency ultrasound at low-level intensity (isata < 6 w/cm2) was investigated in a spontaneous murine model of breast adenocarcinoma in balb/c mice. materials and methods: forty tumor bearing m...

a hypertrophic scar is defined as an excess healing response that is a dilemma for physicians. several therapies are available: intralesional corticosteroids, topical treatments, cryotherapy, surgery, radiation, silicone gel dressing and laser therapy.pulsed-dye, nd-yag and co2 lasers have been used for treatment of keloids and hypertrophic scars but recurrence is common. recently low-level las...