background numerous factors have an effect on the accuracy of an impression and resultant cast, and these include: impression material, impression technique, tray selection, impression disinfection, storage time of impression before pouring, stone type used for fabrication of cast. up to now, there has been little research conducted on the effect of contact time of a cast with an impression, on...

PURPOSE The purpose of this study is to compare single and three-unit metal frameworks that are produced by micro-stereolithography. MATERIALS AND METHODS Silicone impressions of a selected molar and a premolar were used to make master abutments that were scanned into a stereolithography file. The file was processed with computer aided design software to create single and three-unit designs f...

Art therapy has been applied in a variety of settings and with a large number of different client groups. It has been used for aesthetic, educational and clinical reasons. One of the main applications in the past has been to measure intelligence. However, the test-retest reliability was found to be poor. For example, intelligence or projective tests in clinical psychology, like the 'Rorschach i...

BACKGROUND The accuracy of implant casts generated with various impression techniques was mainly investigated in vitro resulting in limited clinical data. PURPOSE (1) To compare the three-dimensional (3-D) accuracy of splinted and non-splinted impression techniques to the control casts (verification jigs) that had been used for actual patient treatment; and (2) to determine the maximum level ...