introduction: in cases of severe hard tissue loss, 2 mm circumferential ferrule is difficult to achieve. so in these cases we should use different ferrule designs. this in vitro study investigated the effect of different ferrule designs on the fracture resistance of teeth restored with bonded post and cores. materials and methods: forty freshly-extracted central incisors were endodontically tre...

post-traumatic stress disorder (ptsd) is a disorder which might occur in subjects after experiencing a traumatic life event. the underlying etiology of this disorder is still unknown but malfunction of the brain’s anxiety network is discussed. therefore, neuroscience research might give new insights about the neurobiological mechanisms of ptsd. the talk will give a systematic overview about the...

various psychotherapies for post-traumatic stress disorder and disturbances associated with it are used. the purpose of this review was to introduce of traditional and modern psychotherapy in the treatment of post-traumatic stress disorder. the data was collected by searching of online databases, english articles selected from science direct, pubmed, proquest, and persian articles from medlib, ...

background: severe abdominal pain is not common after laparoscopic surgeries, but acute or chronic pain after operation is considerable in some patients. post-operative pain control after laparoscopic surgeries, is conventionally achieved using analgesics such as non-steroidal anti-inflammatory drugs (nsaids) and narcotics, but their administration has a lot of side effects. this study compares...

in addition to graft clarity, an acceptable refractive error is essential to consider a corneal transplant successful. the most common complication of penetrating keratoplasty (pk) is postkeratoplasty astigmatism which can result in decreased visual acuity, anisometropia, and mono-ocular diplopia. these complications can cause patient dissatisfaction, in spite of a successful transplant. intrao...