Background Many researchers believe that it is one of the most stressful events in patients’ lives. A considerable number of studies have consistently reported that infertility associates with psycho- logical distress and losses of hope, esteem and social roles by repeatedly attempting to have a baby but failing to achieve it. The measure of adaptation as one of the most important variables of ...

objectives : the purpose of this in vitro study was to compare the marginal adaptation and fracture resistance of a zirconia-based all-ceramic restoration with two preparation designs. materials and methods: twenty-four mandibular premolars were randomly divided into two groups (n=12); the conventional group received a peripheral shoulder preparation and the modified group received a buccal sho...