PURPOSE To evaluate the dimensional accuracy of the resultant (duplicative) casts made from two different impression materials (polyvinyl siloxane and polyether) in parallel and angulated implants. MATERIALS AND METHODS Three definitive master casts (control groups) were fabricated in dental stone with three implants, placed at equi-distance. In first group (control), all three implants were ...

This experiment addressed issues in impression management. First, this study investigated whether type of impression intended (accurate or fabricated) and level of self-monitoring (high or low) affect the amount of information about a target person that individuals would acquire, at some cost to themselves, prior to interacting with that person. As predicted, high self-monitors planning a fabri...

Purpose: This study compared the reproducibility of dual-arch impression technique with conventional impression techniques. Materials and Methods: Full-crown preparation was completed on posterior teeth of fresh porcine upper jaws. Dual-arch impression was made immediately after the preparation without gingival retraction cord or triple-tray (experimental group), followed by conventional 1-step...

We propose a media converter framework which takes images, music, and other media as input and outputs different media while preserving the same impression for humans. The media converter is realized by combining multiple media database (DB) retrieval systems that use a common psychological impression space. Each of the media DB retrieval systems consists of a physical media feature extraction ...

Overall impression of long-term sound will be judged on the basis of memory. The results of our former studies comparing overall impression with instantaneous impression suggest that the prominent portions of the sound contribute to the overall impression more greatly than less prominent portions. Long-term environmental sound consists of various kinds of sound. In order to examine what kind of...

background: a precise impression is mandatory to obtain passive fi t in implant-supported prostheses. the aim of this study was to compare the accuracy of three impression materials in both parallel and nonparallel implant positions. materials and methods: in this experimental study, two partial dentate maxillary acrylic models with four implant analogues in canines and lateral incisors areas w...

Aim: This article describes an alternative preliminary impression technique for an infant with cleft palate. Methodology: A 3 day old male infant with cleft palate was referred to clinic for the fabrication of feeding plate, for the first impression a sterilized tea-spoon modified with a hole in the middle of spoon was used as a tray. Results: Modified spoon tray is easily accessible, cost effe...

Introduction. One of the main steps of impression is the selection and preparation of an appropriate tray. Hence, the present study aimed to analyze and compare the accuracy of one- and two-stage impression techniques. Materials and Methods. A resin laboratory-made model, as the first molar, was prepared by standard method for full crowns with processed preparation finish line of 1 mm depth and...

The aim of this study was to examine the effects of tray design and impression material on impression pressure in a clinical simulation model of an edentulous mandible. Two types of polyvinylsiloxane elastomer, one type of polyether elastomer, and one type of alginate were used. The three tray types had no relief, 0.36 mm of relief, or 1.4 mm of relief, with or without escape holes. Impression ...