Results: 24

Influencia del tipo de cubeta y la aplicación de adhesivos en la exactitud de modelos obtenidos con siliconas por adición
the influence of tray type and adhesives application on the accuracy of addition silicone models

El resultado de modelos de trabajos exactos en odon- tología, resignifica analizar diversas cuestiones que influyen durante la manipulación de los materiales, toma de impresión, posterior remoción y vaciado a fin de minimizar distorsiones que impactan sustan- cialmente en la obtención de un modelo d...

Accuracy of Intraoral Scanners and Conventional pressions in Full-Arches: a Systematic Review

The aim of this study was to evaluate intraoral scanners accuracy in full-arches, comparing them with conventional impressions. A scientific research performed in MEDLINE, EBSCOhost, and SciELO databases was conducted to analyze articles published between 2015 and 2020. Clinical and in vitro studies that...

Dimensional Accuracy Comparison of Physical Models Generated by Digital Impression/3D-Printing or Analog Impression/Plaster Methods

This study aimed to compare the trueness and precision of physical models manufactured chairside (intraoral scanner and 3D printed) or by plaster models obtained using impression with alginate or addition silicone. A full- arch stainless steel die was impressed to obtain ten physical models for each grou...

Extended-pour and conventional alginates: effect of storage time on dimensional accuracy and maintenance of details

ABSTRACT Objective: This study aimed to evaluate the dimensional stability and maintenance of details of conventional and high stability alginates up to 5-day storage. Methods: Two types of alginates were selected (n=10) for this study, conventional (Hydrogum) and high stability alginates (Hydrogum 5),...

Evaluación de la precisión de impresiones sobre implantes usando guía multifuncional en el sistema all-on-four
Accuracy of implant impression using a multifunctional guide in the All-on-Four treatment concept

Rev. cuba. estomatol; 57 (4), 2020
ABSTRACT Introduction: The passivity of prosthetic components is one of the most important prerequisites in oral implant rehabilitation for maintenance of osseointegration. Objective: Thus, the present study analyzed in vitro the accuracy of different molding techniques in prosthetic rehabilitation on...

Evaluating the effect of different combination of impression and pouring materials on marginal and internal adaptation of zirconia crowns

J. oral res. (Impresa); 9 (5), 2020
Purpose: Two important factors in dental prosthesis are making an accurate impression and producing a suitable cast which represents the exact relationship between prepared tooth and oral structures. This study, aimed to investigate the effects of different combinations of impression and pouring material...

Effect of techniques, trays and materials on accuracy of impressions clinically made

Abstract Introduction Making accurate and dimensionally stable impressions to duplicate oral conditions and tooth morphology is an essential step of prosthetic dentistry for fabricating well-fitted indirect restorations and, consequently, ensure the longevity and success of the treatment. Several author...

Comparison of impression techniques and double pouring by dental cast’s accuracy. Preliminary clinical-lab trial

Braz. j. oral sci; 18 (), 2019
Aim: This study compared impression techniques and double pouring by means of cast’s accuracy. Methods: For each patient (n=10), impressions from right maxillary canine to first molar were made with acrylic resin trays and vinyl-polysiloxane using one single-step, and four two-steps techniques: relief ...

Estabilidade dimensional de moldes obtidos com alginato de armazenamento tardio

Resumo Introdução Recentemente, vêm surgindo no mercado alguns alginatos de armazenamento prolongado. Não há, no entanto, um consenso na literatura a respeito da estabilidade dimensional destes materiais durante este armazenamento Objetivo Avaliar, por meio de método prático experimental, a esta...

Marginal adaptation of provisional crowns made of acrylic and bisacrylic resins using different impression materials

Braz. j. oral sci; 18 (), 2019
Aim: To evaluate the marginal adaptation of provisional crowns made of acrylic and bisacrylic resins using different impression materials. Methods: a metal die and a matrix applied through a direct technique were used to fabricate the specimens. The impression materials used as a matrix were divided into...