Gypsum Type Iv
Mostrando 1-10 de 10 artigos, teses e dissertações.
-
1. Effect of techniques, trays and materials on accuracy of impressions clinically made
Resumo Introdução Realizar moldagens precisas e dimensionalmente estáveis que dupliquem a condição oral é um passo essencial para a confecção de restaurações indiretas de qualidade, garantindo seu sucesso e longevidade. Diversos estudos tem demonstrado os prós e contras de diferentes técnicas de moldagem, mas nenhum consenso da melhor técnica a
Rev. odontol. UNESP. Publicado em: 23/09/2019
-
2. Marginal and internal fit of zirconia copings obtained using different digital scanning methods
Abstract The objective of this study was to evaluate the marginal and internal fit of zirconia copings obtained with different digital scanning methods. A human mandibular first molar was set in a typodont with its adjacent and antagonist teeth and prepared for an all-ceramic crown. Digital impressions were made using an intraoral scanner (3Shape). Polyvinyl
Braz. oral res.. Publicado em: 10/10/2016
-
3. Influence of different water types on the physical and mechanical properties of gypsum
Abstract Aim: To evaluate if gypsum mixed with different water types, with their different compositions influence the dimensional change, surface roughness and compressive strength of type IV and V gypsum specimens. Methods: Sixty specimens were fabricated from metal matrices and divided into six groups (n=10) according to the used type of gypsum and water
Braz. J. Oral Sci.. Publicado em: 2015-09
-
4. Influence of the casting material on the dimensional accuracy of dental dies
The purpose of this study was to evaluate the dimensional accuracy of different materials used in the confection of dies. Two stainless steel standard models were confected. One of the models, which was 2 mm larger than the other model, was used to provide a uniform relief for the two-step putty-wash impression technique. Thirty impressions were obtained usi
Brazilian Oral Research. Publicado em: 17/06/2011
-
5. Linear dimensional changes in plaster die models using different elastomeric materials
Dental impression is an important step in the preparation of prostheses since it provides the reproduction of anatomic and surface details of teeth and adjacent structures. The objective of this study was to evaluate the linear dimensional alterations in gypsum dies obtained with different elastomeric materials, using a resin coping impression technique with
Brazilian Oral Research. Publicado em: 2010-09
-
6. Estabilidade dimensional de modelos obtidos com poliéter e silicone de adição após desinfecção com ácido peracético e hipoclorito de sódio
The disinfection of dental impressions is an important procedure to prevent cross infection on dental office. The aim of this study was compare the dimensional stability of models obtained of three impressions materials after disinfection with 1% sodium hypochlorite and 0,2% peracetic acid (Sterilife, Lifemed). A master model with points at first right molar
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/07/2008
-
7. Influência do tipo de material de moldagem e do tempo para vazamento do molde na estabilidade dimensional dos modelos de gesso
A delay in pouring elastomeric impressions may be the cause of cast dimensional alterations, resulting in a bad adaptation of the restorative prosthetic. This study aims to evaluate, in-vitro, the influence of differents elastomeric materials and the time passed to pour the cast on its dimensional alteration, by means of a method which simulates the conditio
Publicado em: 2008
-
8. Avaliação comparativa da alteração dimensional de diferentes materiais utilizados para a confecção de troquéis / Comparative evaluation of dimensional change of different materials used to die making
Neste trabalho experimental, objetivou-se avaliar comparativamente a alteração dimensional de três diferentes materiais utilizados na confecção de troqueis: gesso tipo IV Fuji Rock (GC), resina epóxica industrial Sikadur 32 (Sika) e resina epóxica Tri-Epoxy Die Material (Tri-Dynamics). Foram confeccionados dois modelos-padrão em aço inoxidável. Um
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/12/2007
-
9. Avaliação da alteração dimensional ocorrida nos terminos cervicais de troqueis confeccionados com gessos tipo IV e tipo V
Clinical experience has shown that technical procedures for dental prosthesis face problems regarding the faithfulness of the reproduction of the original mode!. These problems involve not only the modeling material properties, but also the properties of the material used to manufacture the working mode!. Within this context, gypsum (types IV and V) has been
Publicado em: 2000
-
10. Influencia de metodos endurecedores sobre algumas propriedades fisicas e na formação cristalina dos gessos tipo IV
Four gypsum brands Type IV (Vel-Mix, Suprastone, Durone, and Herostone) were submitted to the setting methods hardness solution and mineral oil imersion to determine the setting expantion, abrasion resistance, surface hardness and compressive strength, and crystalin aspects ...Note: The complete abstract is available with the full electronic digital thesis o
Publicado em: 1992