introduction: 90% of the tumors in the head and neck are squamous-cell carcinomas (hnscc), which have overall 5- year survival rate between 50% -60%. cd44 has been shown to be associated with the prognosis.  materials and methods: biopsy specimens of 51 patients with oral tongue scc were evaluated by immunohistochemistry (ihc) for the cd44 antibody.  results: there was no significant correlatio...

introdouction: although highly desirable outcomes and longterm survival of dental implant treatments are well documented, implant failures still occur due to various reasons. several risk factors may impair implant survival including implant dimensions (length, diameter, and implant design), procedures, local bone density at the implant site, and patient-related risk factors such as age, smokin...

objective: whilst many questions and doubts still remain, today the use of dental im-plants has gained an increasing popularity amongst patients as well as dentists. the aim of this study is to analyze the survival rate in using such implants over a 10 year period. materials and methods: in this study, 3050 iti implants placed in 1000 patients with the mean age of 49.5 years (54.4% males and 44...

introduction: periodontal diseases are considered as some of the most common reasons of teeth loss, which occur due to the aggregation of microbial plaque and other precipitations on the dental surfaces . in this study, the scaling effect using manual tools, ultrasonic machine and erbium-doped yttrium aluminum garnet (er:yag)laser on the connection of the human gums connective tissue cells on t...

background and aim: generally, in patients with cervical cancer, careful preliminary evaluation is necessary for avoiding improper surgical procedures and making effective clinical decisions for treatment. the aim of this study was to determine surgeons’ errors, which necessitate a combination of surgery and radiotherapy for cervical cancer patients.    methods: in this retrospective study, med...

gastric cancer is the most prevalent cancer among men and the third most prevalent cancer among women in iran. its most important reason for death is its belated diagnosis at the advanced stages of the disease. various factors can be effective on the survival of these patients after surgery, which are the major concern in this study.data from 330 patients with gastric cancer who had undergone s...

introduction: insome cases, assist devices are required to ensure an adequate cardiac output after cardiac surgery. intra-aortic balloon pump (iabp) is the most commonly used cardiac assist device, which provides first-line support for patients with heart failure. the aim of this study was to determine factors affecting the mortality rate of patients receiving iabp. materials & methods:  in thi...

background: lung cancer is the most common cause of cancer death worldwide with an annual mortality rate of more than 1.3 million worldwide. we aimed to analyze the clinicopathological features of patients with non-small-cell lung cancer (nsclc) in west of iran. methods: 64 patients with nsclc who referred to our clinic were analyzed. sex, age, histopathology, location of the tumor, treatment, ...

the purpose of this study was to describe the feasibility of a combined preoperative chemoradiation program ib-iia, bulky and suspicious iib by radical surgery in patients with stage ib-iib cervical cancer. from september 1999 to april 2002, 30 patients with carcinoma of the cervix were treated with preoperative external beam radiotherapy of 45 gy in 5 weeks. patients received concurrent contin...

Radical prostatectomy in elderly patients is controversial. To identify very old candidates for radical prostatectomy with the highest probability of long-term survival, we studied 47 consecutive men who underwent radical prostatectomy between 1992 and 2005 at an age of 75 years or older. A heuristic approach was used to search for subgroups with particularly high long-term survival. Several tw...