Evaluation of accuracy of complete-arch multiple-unit abutment-level dental implant impressions using different impression and splinting materials.

Purpose: This in vitro study evaluated the accuracy of multiple-unit dental implant casts obtained from splinted or nonsplinted direct impression techniques using various splinting materials by comparing the casts to the reference models. The effect of two different impression materials on the accuracy of the implant casts was also evaluated for abutment-level impressions. Materials and Methods: A reference model with six internal-connection implant replicas placed in the completely edentulous mandibular arch and connected to multi-base abutments was fabricated from heat-curing acrylic resin. Forty impressions of the reference model were made, 20 each with polyether (PE) and polyvinylsiloxane (PVS) impression materials using the open tray technique. The PE and PVS groups were further subdivided into four subgroups of five each on the bases of splinting type: no splinting, bite registration PE, bite registration addition silicone, or autopolymerizing acrylic resin. The positional accuracy of the implant replica heads was measured on the poured casts using a coordinate measuring machine to assess linear differences in interimplant distances in all three axes. The collected data (linear and three-dimensional [3D] displacement values) were compared with the measurements calculated on the reference resin model and analyzed with nonparametric tests (Kruskal-Wallis and Mann-Whitney). Results: No significant differences were found between the various splinting groups for both PE and PVS impression materials in terms of linear and 3D distortions. However, small but significant differences were found between the two impression materials (PVS, 91 mu m; PE, 103 mu m) in terms of 3D discrepancies, irrespective of the splinting technique employed. Conclusions: Casts obtained from both impression materials exhibited differences from the reference model. The impression material influenced impression inaccuracy more than the splinting material for multiple-unit abutment-level impressions.Article Link : http://www.ncbi.nlm.nih.gov/pubmed/2427891

3D Face Synthesis Driven by Personality Impression

Synthesizing 3D faces that give certain personality impressions is commonly needed in computer games, animations, and virtual world applications for producing realistic virtual characters. In this paper, we propose a novel approach to synthesize 3D faces based on personality impression for creating virtual characters. Our approach consists of two major steps. In the first step, we train classifiers using deep convolutional neural networks on a dataset of images with personality impression annotations, which are capable of predicting the personality impression of a face. In the second step, given a 3D face and a desired personality impression type as user inputs, our approach optimizes the facial details against the trained classifiers, so as to synthesize a face which gives the desired personality impression. We demonstrate our approach for synthesizing 3D faces giving desired personality impressions on a variety of 3D face models. Perceptual studies show that the perceived personality impressions of the synthesized faces agree with the target personality impressions specified for synthesizing the faces. Please refer to the supplementary materials for all results.Comment: 8pages;6 figure

At Face Value: Visual Antecedents of Impression Formation in Servicescapes

Consumers may base employee impressions on physical appearance\ud and displayed personal objects. In a scenario experiment,\ud using photos of a physician and a 360-degree panorama of his\ud consultation room, we examined the effects of appearance and\ud tangibles on impression formation. Study 1 shows that observers\ud employ various strategies of combining information from different\ud sources when forming an impression of the employee’s friendliness\ud and competence. Whereas previous research has shown that impression\ud formation based on personal appearances proceeds in an\ud automatic fashion, the findings of study 2 indicate that impression\ud formation grounded in the perception of tangibles requires more\ud elaborate processin

Impression management in the workplace: Research, theory and practice

A good comprehensive book is a rare find.If you are searching endlessly for a book that has it all, this is the one that presents every bit about impression management that one must know to get by in today’s world of advanced technology where everything is at our finger tips.The content covers from the most basic, that is, the meaning and nature of impression management (Chapter One), to the most complex yet a significant area that deals with the functional and dysfunctional consequences of impression management (Chapter Eleven)

Urban Dynamics an Impression of Surabaya's Sociolinguistic Setting

This paper examines the sociolinguistic situation in the city of Surabaya, bypresenting an impression of various phenomena unique to Indonesia's secondlargest city. A surprisingly little amount of linguistic research has heretofore beencarried out on this subject, whereas it transpires from this study that enoughintriguing and unique things can be found in this Southeast Asian metropolis,both among its Javanese majority as well as its Madurese and Chinese inhabitants.Due to the lack of earlier relevant publications, this research is largely based onthe results of several fieldwork trips, which included the pleasant activities ofwatching television, interviewing people and making excursions in and aroundSurabaya to experience how languages are used in daily life. Additionally,concepts such as “language mixing”, “slang” and “attitudes towards language”are involved and considered very significant in disentangling the role andfunction of language in an urban setting

The measurement of biaxial strains in coated fabric materials using the disc-replica method

A method of measuring biaxial strains in coated fabric type materials is presented whereby the strain is deduced from the distortion of a circular impression made on the material. The impression is placed on the material when loaded, enabling all measurements to be made with the material in its relaxed, unloaded, state