aligned and random nanocomposite nanofibrous scaffolds were electrospun from polycaprolactone (pcl), poly (vinyl alcohol) (pva) and hydroxyapatite nanoparticles (nha). the morphology and mechanical characteristics of the nanofibers were evaluated using scanning electron microscopy and tensile testing, respectively. scanning electron microscopy revealed fibers with an average diameter of 123 ± 3...

statement of the problem: in the evolution of orthodontics, the changes in soft tissue, especially smile line attracts considerable attention. purpose: the present study was carried out to evaluate the correlation of the smile line with the vertical parameters of anterior part of face. materials and methods: forty-six iranian adults, aged between 18-25 years were selected. five quantitative and...

background and aim: oral mucosal lesions have various prevalence rates among different populations. few studies have evaluated the frequency of oral mucosal lesions in iranian population. this study aimed to determine the frequency of oral mucosal lesions and the related factors.                        materials and methods: this descriptive study was conducted based on the data in the archives...

the investigation and determination of the significance of neovascularization in the progression of soft tissue sarcoma is currently of increasing clinical importance. microvessel density is the morphologic evidence of neoangiogenesis in the process of malignant progression of sarcomata. this brief review of the markers commonly used in clinical practice was undertaken to determine the validity...

objective: at present, growth factor-containing products such as enamel matrix derivatives, recombinant bone morphogenetic protein (rh-bmp), recombinant platelet derived growth factor and platelet rich plasma (prp) have gained increasing attention. prp is an autologous source of platelet growth factors used to enhance healing of soft and hard tissues. prp has gained popularity due to its autolo...

extra renal extra cranial malignant rhobdoid tumors (mrt) are rare, frequently lethal and affect mostly children. no definite treatment has been made and the role of radiation therapy is poorly defined. this report explains a 14 year old girl with mrt in her neck soft tissue. she is alive with no evidence of disease 18 months after diagnosis. through the experience with this case, we suggested ...

granular cell tumor (gct) was first described by abrikossoff in 1926. gct is a rarely seen soft tissue tumor and is generally benign. while the tumor can be seen in all parts of the body it is generally located on the head and neck region, and especially on the tongue. gct is rarely seen in the anal-perianal region. in accordance with literature this case was reported because it was thought to ...

the management of soft tissue defects in tibial fractures is essential for limb preservation. current techniques are not without complications and may lead to poor functional outcomes. a salvage method is described using three illustrative cases whereby a combination of flaps and antibiotic-impregnated polymethylmethacrylate beads are employed to fill the bony defect, fight the infection, and p...

Bone tissue engineering is an emerging interdisciplinary field in Science, combining expertise in medicine, material science and biomechanics. Hard tissue engineering research is focused mainly in two areas, osteo and dental clinical applications. There is a lot of exciting research being performed worldwide in developing novel scaffolds for tissue engineering. Although, nowadays the majority o...

to define efficacy of pre-operative chemotherapy in down staging of advanced non-round cell soft tissue sarcomas. from sep 2002 to dec 2005, 70 patients were treated by ifosfamid, mesna, cisplatin, adriamycin, mitomycin and subsequent surgery. postoperatively, patients received radiotherapy in cases of microscopically incomplete resection or local recurrence. the median age of the patients was ...