Shadow regions are very present in the high spatial resolution images, particularly in urban environment. Shades have negative effects. They strongly disturb the classical techniques of image analysis by modifying surface appearance and sometimes involve loss of information under the surface they covered. In this study, we try to restore the information masked under the shadow by finding the ty...

UNLABELLED Historically, shade change assessment associated with vital bleaching treatment regimens has been visually evaluated through the use of shade guide tabs. Innovations in the industry of dentistry have brought forth new technologies capable of measuring such changes via the capture and analysis of reflected wavelengths of light. CLINICAL SIGNIFICANCE This article introduces the use o...

BACKGROUND The authors conducted a study to evaluate esthetic restorative materials' color differences after setting and color matching between set materials and a shade guide. MATERIALS AND METHODS The authors evaluated 13 resin-based composites, one silorane-based composite, two polyacid-modified resin composites and one conventional glass ionomer cement. They measured the color parameters ...

OBJECTIVE Since the color of esthetic brackets should match that of teeth, the aims of this study were to determine the color and translucency of esthetic brackets by means of the clinically relevant use of a spectroradiometer, and to compare the color of brackets with that of a commercial shade guide. METHODS The color of central and tie-wing regions of four plastic and four ceramic brackets...

This is the flow of information between Plant–plant signalling Plants generate and perceive informational signals. individuals. An interaction is considered An interaction (between plants) is considered to be to be informational when it involves the informational when it involves the exchange of an exchange of an insignificant amount of matter or energy, in quantitative terms, insignificant amo...

The aim of this study was to evaluate the in vitro color agreement between nanofluorapatite ceramic discs (e.max Ceram / Ivoclar Vivadent / A2) associated with try-in pastes and those bonded with resin cements (Vitique / DMG/ try-in shade A2½ and cement shade A2½, Variolink II / Ivoclar Vivadent / try-in shade A1 and cement shade A1, and Choice 2 / Bisco / try-in shade A2 and cement shade A2), ...

In this article, two hypotheses were tested to explain attitudinal ratings like SURPRISE, SUGGESTION, REMINDER etc. of four rising nuclear contours observed in a Dutch question corpus and described as (a) H*L H%, (b) H* H%, (c) L*H H% and (d) L* H%. According to one hypothesis, the middle tones in (a) and (c) should be parcelled out, such that their absence produces contours (b) and (d), respec...