Background and aim: Changes in the physical properties of casts retrieved from disinfected impressions are a common problem in the fabrication of dental prostheses. However, there are limited data available about the effect of disinfecting solutions on the surface roughness of casts. This study aimed to assess the surface roughness of casts retrieved from addition silicone impressions disinfect...

Many types of noise can be present in an image. Registration becomes difficult when the concerned pattern contains a “seal noise.” In this paper, the seal noise appearing inherently in a seal image is introduced. The registration of seal images used widely in many commercial applications in Chinese society is presented. An effective approach using contour analysis for finding the principal orie...

Why do we form first impressions at all? What kinds of information are especially likely to influence our first impressions, and what specific impressions are inspired by that information? Under what conditions are we especially likely to form specific kinds of first impressions? What specific psychological mechanisms are responsible for producing these inferential phenomena? These are fundamen...

background: main objective of this study was to investigate the invasive activity of the liver fluke, pseudamphistomom truncatum against the caspian seal ( pusa caspica ) and was exemplified at the gross, light microscopy (lm) and electron microscopy (em) levels. methods: the study was done on a freshly dead caspian seal in the southern coast of caspian sea. the checked caspian seal probably be...

introdouction: it is important for the clinician to be aware regarding the necessary thickness of materials used as intra-orifice coronal barriers to prevent microleakage. the purpose of this in vitro study was to compare coronal microleakage of three different thicknesses of white and gray angelus mineral trioxide aggregate (wamta, gamta). materials and methods: a total of 66 canals of extract...

OBJECTIVE To investigate the dimensional accuracy of digital dental models obtained from the dental cone-beam computed tomography (CBCT) scan of alginate impressions according to the time elapse when the impressions are stored under ambient conditions. METHODS Alginate impressions were obtained from 20 adults using 3 different alginate materials, 2 traditional alginate materials (Alginoplast ...