BACKGROUND This study examined the usefulness of the fibula positioning guide for boosting the accuracy of mandible reconstructions. METHODS Thirty mandibular rapid prototype (RP) models were allocated to experimental (N = 15) and control (N = 15) groups. For reference, we prepared a reconstructed mandibular RP model with a three-dimensional printer, based on surgical simulation. In the exper...

in descriptive statistics, there are two computational algorithms for determining the variance s2, of a set of observations : algorithm 1: s2= - , algorithm 2: s2= , where . it is interesting to discuss, which of the above formulas is numerically more trustworthy in machine numbers sets. i this paper, based on total effect of rounding error, we prove that the second algorithm is better than ...

medicine had never been error free. medical society has responsibility to reduce the rate of medical errors and should respect to people and patients rights in the case of error occurrence to maintain their trust. waiver of cause of medical errors, what is of importance is recognizing the ethical duty of physician toward her patient in the case of error commitment. in this paper at the first, t...

abstract our patient was a 43-year-old woman with a suboccipital headache and pain in the upper cervical region from 3 years ago with a progressive generalized weakness in the last 3 months. neuroimaging study showed a dumbell shaped lesion with compression of the spinal cord in the cervical region that was identified as a neurinoma. the tumor had been completely removed by surgery but after th...

drug interaction may cause sever adverse drug reactions in patients. the high amounts of prescribed medication in hospitalized patients will cause higher incidence of drug interactions. therefore, the study of drug interactions in hospitalized patients seems to be worth. we have, studied drug interaction in internal and surgical units, in kashani hospital in shahrekord. factors included in this...

purpose: compaison of excyclotorsion induced by horizontal transposition of vertical rectus muscles versus vertical transposition of horizontal rectus muscles in rabbit eyes. methods: in this exprimental study, group 1 underwent full tendon nasal transposition of the superior rectus and full tendon temporal transposition of the inferior rectus (10 adult rabbits); group 2 underwent superior tran...

surgical removal of impacted third molars is amongst the most common surgical procedures performed by oral and maxillofacial surgeons. every year many articles are published in different journals regarding different aspects in such surgeries. it is necessary to translate such vast amounts of data into simple and easily comprehensible sentences for the students of dentistry and oral surgery. thi...

ascaris infestation is still prevalent in the world. in isfahan approximately 77.7 to 90.3 percent of the population is infected. in this communication surgical complications of ascariasis in a series of 29 patients observed in soraya hospital of isfahan during five year period since 1971 are reported. intestinal obstruction was the commonest complication leading to operation (22 cases). the di...

in this case report, we described a 74-year-old female patient with major complaint of respiratory problemsdyspnea after meal. chest x-ray of the patient revealed a  gianttype iv hiatal hernia. preoperative evaluations of the patient included esophagoscopy, esophageal manometry, barium swallow, and ct-scan. repair of the hernia was performed using a dual mesh on the diaphragm and partial anteri...