Results 101 to 110 of about 80,900 (240)

Matrix Metalloproteinases Inhibitory Effects of Silver Diamine Fluoride: Influence of Time and Potassium Iodide, In Vitro

International Journal of Paediatric Dentistry, EarlyView.
ABSTRACT Background Silver diamine fluoride (SDF) arrests caries, partly by inhibiting matrix metalloproteinases (MMPs). Potassium iodide (KI) is often applied after SDF to mitigate tooth darkening. Aim This in vitro study evaluated the effects of application time and potassium iodide on SDF‐mediated MMP inhibition, and assessed surface microhardness ...
Lamis El Sharkasi, Lynne Bingle, Helen Rodd, Nicolas Martin, Samiya Subka, Chris Deery   +5 more
wiley   +1 more source

Effect of Glazing Dwell Time and Cooling Duration on Flexural Strength and Surface Microhardness of 3 mol% Yttria‐Stabilized Tetragonal Zirconia: An In Vitro Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of glazing dwell time and cooling duration on the flexural strength and surface microhardness of high‐translucency 3 mol% yttria‐stabilized tetragonal zirconia polycrystal (3Y‐TZP). Materials and Methods Total of 108 rectangular zirconia specimens (20 × 4 × 2 mm) were fabricated from preshaded monolithic blocks
Shubha Sarmalkar, Aradhana Nagarsekar, Meena A. Aras, Umesh Y. Pai, Ridhima Gaunkar, Prajakta R. Volvaikar   +5 more
wiley   +1 more source

Effectiveness of Periodic Repolishing on the Surface and Mechanical Properties of Resin‐Based CAD/CAM Materials After Different Cycles of Combined Simulated Toothbrushing and Mechanical Cycling

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This study aimed to evaluate the effectiveness of periodic repolishing on the surface and mechanical properties of resin‐based CAD/CAM materials subjected to combined mechanical cycling and simulated toothbrushing, with or without periodic repolishing.
Gabriel Nunes Sampaio, Amanda Martinelli Moretti, Mariana Nogueira Bianchi, Victor Alves Nascimento, Aldiéris Alves Pesqueira   +4 more
wiley   +1 more source

Jonathan Vickers and Kerri Pratt

, 2014
2014 Jonathan Vickers Award winner Kerri Pratt, her work and circumstances relating to the ...
Robinson, Carl, Robinson, C.
core  

Influence of bleaching agents on the microhardness of nanoparticle resin composite [PDF]

RGO: Revista Gaúcha de Odontologia, 2009
Objective: To assess the effect of bleaching agents on the microhardness of nanoparticle resin composite. Methods: Twenty-eight cylindrical test specimens (8x1mm) of FiltekTM Supreme XT resin (3M/ESPE) were prepared and divided into 5 groups. The initial
Vanderlei Salvador Bagnato, Marcelo Ferrarezi de Andrade, Alessandra Nara de Souza RASTELLI, Simone Xavier Silva Costa, Anne Buss BECKER, Carlos Alexandre Souza Bier   +5 more
doaj  

Effect of artificial aging and different surface finishing protocols on the flexural strength and surface hardness of a photopolymer for manufacturing monolithic polychromatic complete dentures using PolyJet 3D printing

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated the effect of thermocycling and three different surface finishing protocols on the flexural strength and surface hardness of a novel photopolymer intended for manufacturing monolithic polychromatic dental prostheses using PolyJet 3D printing.
Francisco X. Azpiazu‐Flores, Ahmed Elfana, Chao‐Chieh Yang, Dean Morton, Wei‐Shao Lin   +4 more
wiley   +1 more source

Investigation of mechanical behavior of wood polymer nanocomposites (WPNs) samples using static vickers microhardness tester

, 2018
Aim of study: In this study, XRD and Vickers microhardness analyses of wood polymer nanocomposites (WPNs) materials are carried out in detail.
Asikuzun, E, Kaymakci, A, Alperen KAYMAKCI, Elif AŞIKUZUN   +1 more
core   +1 more source

Effects of gastric acid on surface roughness, microhardness, fracture strength, and color change of dental ceramics: A systematic review of in vitro studies

Journal of Prosthodontics, EarlyView.
Abstract Purpose This systematic review evaluated the effects of simulated gastric acid (SGA) on surface and mechanical properties of dental ceramics to answer the research question: Does immersion in SGA alter the surface roughness, microhardness, fracture strength, and color of dental ceramics?
Geany Ferreira Rodrigues, Isaac Augusto Dantas Nogueira, Nicole Escórcio de Meneses, Ana Letícia Daniel Fontenele, Francisbênia Alves Silvestre, Ana Carolina Lima Moreira, Lívia Maria Sales Pinto Fiamengui, Karina Matthes de Freitas Pontes, Raniel Fernandes Peixoto   +8 more
wiley   +1 more source

Model for vickers microhardness prediction applied to SnO2 and TiO2 in the normal and high pressure phases

, 2014
The Vickers microhardness of TiO2 is calculated using elastic properties obtained by first principles calculations combined with Discrete Elements Method (DEM). The calculation is carried out in rutile and cotunnite phases.
Uberti, Bruno, Barrios D’Ambra, Ricardo José Luis, Kosteski, Luis Eduardo, Miño, Julio C., Casali, Ricardo Antonio, Caravaca, María de los Ángeles   +5 more
core   +1 more source

Effect of resin type, cleaning solution, and aging on the mechanical properties and reliability of additively manufactured occlusal devices

Journal of Prosthodontics, EarlyView.
Abstract Purpose The purpose of this in vitro study was to investigate the effect of alcohol‐free cleaning solutions on the mechanical properties and reliability of additively manufactured occlusal device resins, compared with isopropyl alcohol (IPA), while considering the influence of aging.
Selim Polat, Ayyüce Nur Tezcan, Hanan Al‐Johani, Gülce Çakmak, Mustafa Borga Dönmez, Burak Yilmaz   +5 more
wiley   +1 more source