Results: 74

Characteristics of Mandibular Movement and Mastication in Older Adults with Removable Dental Prostheses: Three-Dimensional Analysis

ABSTRACT: Aging is a dynamic process that includes various alterations in the oral cavity, with tooth loss being the most frequent. Rehabilitative treatment may include removable or fixed prostheses and implants. The aim of this study was to describe the geometric (trajectory, ranges, areas) and kinemati...

Cirugía laparoscópica con imagen 3D: indicaciones, resultados y evaluación subjetiva y objetiva de cirujanos participantes

Rev. cir. (Impr.); 72 (1), 2020
Resumen Introducción El uso del sistema de visión 3D en cirugía laparoscópica puede significar una mejor performance de los procedimientos quirúrgicos de mayor complejidad. Objetivo Reportar las indicaciones, los resultados y la valoración de un grupo de cirujanos de diferentes especialidades e...

The use of a liner under different bulk-fill resin composites: 3D GAP formation analysis by x-ray microcomputed tomography

J. appl. oral sci; 28 (), 2020
Abstract Gap formation of composite resin restorations is a serious shortcoming in clinical practice. Polymerization shrinkage stress exceeds the tooth-restoration bond strength, and it causes bacterial infiltration within gaps between cavity walls and the restorative material. Thus, an intermediate line...

Análise bi e tridimensional das vias aéreas superiores em pacientes submetidos à cirurgia ortognática bimaxilar
Two- and three-dimensional analysis of the upper airways in patients undergoing bimaxillary orthognathic surgery

O propósito deste trabalho foi analisar as mudanças bi e tridimensionais na via área superior após procedimentos de cirurgia ortognática. Tomografias pré (T1) e pós-operatórias (T2) foram utilizadas, padronizando pontos craniométricos que serviram de referência para analisar mudanças lineares ...

Cinematic rendering for three-dimensional reconstructions of the chest wall: a new reality

ABSTRACT Computed tomography with multiple detectors and the advancement of processors improved rendered images and three-dimensional reconstructions in clinical practice. Traditional axial slices form non-intuitive images because they are seen in only one plane. The three-dimensional reconstructions can...

Role of the three-dimensional printing technology in complex laparoscopic renal surgery: a renal tumor in a horseshoe kidney

Int. braz. j. urol; 45 (6), 2019
ABSTRACT Purpose: To report our initial experience using a patient-specific 3D-printed renal tumor model for the surgical planning of a complex heminephrectomy in a horseshoe kidney. Materials and Methods: We selected a clinical case for a complex laparoscopic surgery consisting in a 53 year-old male p...

Assessment of remnant liver function and volume after selective ligation of portal vein and hepatic artery in a rat model

Acta cir. bras; 34 (11), 2019
Abstract Purpose: To evaluate liver regeneration after selective ligation of portal vein and hepatic artery by 3D Computed Tomography in an experimental model. Methods: Sixteen Wistar rats were randomized into four equal groups: Group I- control (sham), Group II- isolated selective ligation of the hepa...

Escaneamento digital e prototipagem 3d para confecção de laminados cerâmicos: relato de caso clínico

Rev. Ciênc. Plur; 5 (1), 2019
Introdução:lentes de contato dentais podem ser uma excelente opção para correção de cor, forma, tamanho e posicionamento dental. Entretanto é umtratamentoque requer várias etapas laboratoriais com riscos de distorções nas etapas de moldagem e vazamento do modelo. Desta forma, desadapta�...

Diagnostic performance of qfr for the evaluation of intermediate coronary artery stenosis confirmed by fractional flow reserve

Abstract Introduction: Quantitative flow ratio (QFR) is a novel method enabling efficient computation of FFR from three-dimensional quantitative coronary angiography (3D QCA) and thrombolysis in myocardial infarction (TIMI) frame counting. We decided to perform a systematic review and quantitative meta-...

Expanding the limits of endoscopic intraorbital tumor resection using 3-dimensional reconstruction

Abstract Introduction: Endoscopic orbital surgery is a nascent field and new tools are required to assist with surgical planning and to ascertain the limits of the tumor resectability. Objective: We purpose to utilize three-dimensional radiographic reconstruction to define the theoretical lateral limit...