Objective: to evaluate the effect of novel zirconia surface treatment method on shear bond strength between zirconia and veneering porcelain compared to air abrasion and CoJet surface treatment methods. Material and Methods: twenty-one zirconia ceramic discs were fabricated with diameter of 7mm and 3mm t...
Aim: To evaluate the effect of different surface treatments and adhesive approaches on the microshear bond strength of resin cement to a polymer-infiltrated ceramic network (PICN). Methods: PICN blocks were randomly assigned into 9 groups (n=10): CTRL: no treatment; HF: 5% hydrofluoric acid etching; HF-S...
El secado es uno de los factores clave para lograr una
adhesión micromecánica exitosa en la dentina con los
sistemas adhesivos de grabado independiente. El objetivo
de este trabajo fue comparar los residuos remanentes
luego de cuatro procedimientos diferentes
de secado en preparaciones ex vivo en denti...
Objective: The present study was oriented to estimate the effect of different surface treatments on the microleakage between the soft liner and acrylic with and without the use of autoclave as disinfection method. Material and Methods: Sixty samples were split into two groups: the autoc...
Aim: To evaluate the retention of an endodontic titanium postwith a spherical head for removable partial denture or overdentureattachment according to surface treatment type. Methods: Sixtyhealthy single-rooted teeth, sectioned at the enamel/cementumjunction, were treated endodontically and steadily fixe...
Abstract Objective This study aims to evaluate the influence of different air-abrasion pressures and subsequent heat treatment on the flexural strength, surface roughness, and crystallographic phases of highly translucent partially stabilized zirconia (Y-PSZ), and on the tensile bond strength of resin ...
Abrasión Dental por Aire/métodos,
Óxido de Aluminio/química,
Análisis de Varianza,
Recubrimiento Dental Adhesivo/métodos,
Resistencia Flexional,
Calor,
Ensayo de Materiales,
Microscopía Confocal/métodos,
Valores de Referencia,
Reproducibilidad de los Resultados,
Cementos de Resina/química,
Propiedades de Superficie,
Resistencia a la Tracción,
Difracción de Rayos X/métodos,
Circonio/química
Resumo Introdução A cimentação adesiva, com cerâmicas puras, é um passo relevante no estabelecimento da longevidade de trabalhos protéticos, sendo estes os melhores materiais utilizados para a reposição de dentes perdidos, de forma a reabilitar o sorriso. O sistema cerâmico de zircônia não s...
Zens, Marlyni Aparecida;
Icochea, Alfredo Llerena;
Costa, Bruna Carolina;
Lisboa-Filho, Paulo Noronha;
Bastos, Natália Almeida;
Francisconi, Paulo Afonso Silveira;
Furuse, Adilson Yoshio;
Foschini, Cesar;
Gerlin Neto, Vicente;
Borges, Ana Flávia Sanches.
Abstract Objective This study aims to evaluate the effect of sonochemical treatment on the surface of yttria-stabilized tetragonal zirconia (Y-TZP) before and after the final sintering. Material and Methods Twenty-eight Y-TZP discs were divided into four groups (n=7), according to surface treatment: ...
Abrasión Dental por Aire,
Análisis de Varianza,
Recubrimiento Dental Adhesivo/métodos,
Ensayo de Materiales,
Valores de Referencia,
Reproducibilidad de los Resultados,
Cementos de Resina/química,
Resistencia al Corte,
Estadísticas no Paramétricas,
Propiedades de Superficie,
Itrio/química,
Circonio/química
Introduction: Despite being one of the most studied ceramics today, zirconia still does not have a well-defined adhesion protocol. Objective: Evaluate the influence of different etching times and hydrofluoric acid (HF) concentrations on the zirconia surface and bond strength between a vitrified Y-TZP ...
As lesões cervicais não cariosas (LCNCs) são definidas pela perda de estrutura dental na junção cemento/esmalte que envolve três mecanismos de estresse mecânico (tensão), atrito (fricção) e erosão (degradação química).. Existem tratamentos preventivos e dessensibilizantes para o principal s...
