introduction: the aim of this study was to compare the micro-shear bond strength of composite resin on superficial and deep dentin after conditioning with phosphoric acid and erbium-doped yttrium aluminum garnet (er:yag) laser. methods: thirty human molars were selected, roots were removed and crowns were bisected to provide a total of 60 half-crowns. specimens were ground to expose superficial...

conclusions the application of dn produces an improvement in ilf and clf can be prescribed for subjects with mtp in ut muscles. results statistical analysis (paired t-test) revealed significant increase in neck lateral flexion range of motion in contra-lateral side after treatment sessions in control and experimental group compared with pre-treatment score (p < 0.05). however, only dry needling...

Basal cell carcinoma is the most common malignant neoplasm of skin in humans, originating from basal cells epidermis and its adnexa. It characterized histologically by uncontrolled proliferation that show similarity to normal cells. Chronic exposure ultraviolet (UV) radiation considered main risk factor development, sun-exposed skin, such as face upper extremities, location for appearance this ...

Purpose Dose calculation of kilovoltage x rays used in Image-Guided Radiotherapy has been investigated recent years using various methods. Among these methods are model-based ones that suffer from inaccuracies high-density materials and at interfaces when the energy range. The main reason for this is use water deposition kernels simplifications employed such as density scaling heterogeneous med...

background: skin cancer can be treated by various methods. electron radiotherapy has been a useful therapeutic modality in the treatment of skin cancers in areas which are difficult to cure by other methods. depth dose distribution of 166ho using varskin2 code is presented in this work. material and methods: depth dose distribution of 166ho was calculated, using varskin2 code by adding of 166ho...

introduction accurate estimation of the skin-absorbed dose in external radiation therapy is essential to estimating the probability of secondary carcinogenesis induction materials and methods electron contamination in prostate radiotherapy was investigated using the monte carlo (mc) code calculation. in addition, field size dependence of the skin dose was assessed. excess cancer risk induced by...

background and objective: esophageal cancer especially squamous cell carcinoma (scc) is one of the most common gastro intestinal malignancies in north part of iran (khorasan). the standard treatment for esophageal cancer is surgical resection, but its outcome remains poor. then, the oncologists try to treat this cancer with sandwich protocols especially neo-adjuvant chemo-radiotherapy. several ...

Case 1 An elderly patient presented with insidious onset of sensorineural hearing loss. The past history was unremarkable except for insidious onset of weakness of left lower limb. Physical examination revealed left hemiparesis with upgoing left plantar. Magnetic resonance imaging (MRI) of brain revealed a large flow void in the interpeduncular cistern suggestive of aneurysm arising from the to...

background: we evaluated the efficacy of a simple belly-board device (bbd) designed and made in our department for reduction of small bowel inside the post-operative pelvic radiotherapy fields of rectal carcinomas. methods: a very simple bbd was designed and manufactured in our department. it was made of acrylic glass, and was 128 cm long, 40 cm wide, and 9 cm high, with a 25x25 cm square openi...