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Mostrando ítems 11-20 de 129
Determinação de dureza de ligas de cobre, na forma como são recebidas e após a fundição, em função das técnicas de fusão.
(1990-12-01)
It was evaluated the Vickers hardness of five high-copper casting alloys, in their original package form and after casting, according to the casting method used. That way, ten ingots, supplied by the manufacturers of each ...
The influence of ultrasound on the retention of cast posts cemented with different agents
(2001-03-01)
Aim: The aim of this study was to evaluate the influence of ultrasound during the removal of posts cemented with either zinc phosphate cement, glass ionomer cement or resin cement. Methodology: Eighty-four single-rooted ...
Accuracy of impression techniques for implants. Part 1 - Influence of transfer copings surface abrasion
(2008-12-01)
Purpose: This study evaluated the influence of surface abrasion of transfer copings to obtain a precise master cast for a partially edentulous restoration with different inclinations. Materials and Methods: Replicas (N = ...
Radiographic inspection of porosity in pure titanium dumbbell castings
(Wiley-blackwellMaldenEUA, 2011)
Evaluation of transfer impressions for osseointegrated implants at various angulations
(2004-12-01)
The accuracy of impressions that transfer the relationship of the implant to the metal framework of the prosthesis continues to be a problem. This study was designed to evaluate the accuracy of the transfer process under ...
Does the casting mode influence microstructure, fracture and properties of different metal ceramic alloys?
(SOCIEDADE BRASILEIRA DE PESQUISA ODONTOLOGICASAO PAULO, 2012)
The aim of the present study was to evaluate the tensile strength, elongation, microhardness, microstructure and fracture pattern of various metal ceramic alloys cast under different casting conditions. Two Ni-Cr alloys, ...
An Implant-Transfer Technique Without Impression Material
(Lippincott Williams & Wilkins, 2010-07-01)
Different transfer impression techniques for implant-supported prostheses have been suggested to obtain a working cast. This article describes and illustrates clinical and laboratory pros-thodontic procedures to transfer ...
Estudio de los procesos de corrosion de una aleacion metalica de cobre usada en odontologia
(1997-01-01)
Corrosion phenomena in a dental copper-based alloy are experimentally studied using electrochemical techniques. Two heating sources, torch and induction, were used in the casting experiments. In the corrosion essays, the ...
Comparative study of two commercially pure titanium casting methods
(Faculdade De Odontologia De Bauru - USP, 2010)
The interest in using titanium to fabricate removable partial denture (RPD) frameworks has increased, but there are few studies evaluating the effects of casting methods on clasp behavior. OBJECTIVE: This study compared ...