Results 131 to 140 of about 143,288 (296)

The Effect of Preheating, Resin‐Based Composite, and Wire Types of Orthodontic Lingual Fixed Retainers on the Load at Failure: A Comparative In‐Vitro Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Background Preheating resin‐based composites (RBC) has been shown to enhance their mechanical and bonding properties. Nevertheless, the effect of preheating RBCs on the performance of orthodontic lingual fixed retainers has been scarcely reported.
Hanin E. Yeslam, Hussain Y. A. Marghalani, Abdulrahman Aljehani, Feras Ramadan, Zaki Hakami   +4 more
wiley   +1 more source

High‐Concentration Hydrogen Peroxide Gels Containing Calcium Polyphosphate Associated With Violet Led Light: Bleaching Efficacy and Effects on Enamel Properties

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To evaluate the effect of violet LED light (VL) and hydrogen peroxide (HP) in‐office bleaching gels supplemented with calcium polyphosphate (CaPP) or calcium gluconate (GU): Materials and Methods Bovine enamel blocks (n = 10) were randomly assigned: commercial HP gel, commercial HP gel with GU, or experimental 35% HP with or without
Hemanuelly Albuquerque dos Anjos, Débora Alves Nunes Leite Lima, Carolina Meneghin Barbosa, Klaus Rischka, Waldemir Francisco Vieira‐Junior   +4 more
wiley   +1 more source

Microhardness Tester [PDF]

Science, 1973
openaire   +2 more sources

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

Effect of a Synthetized Herbal Remineralizing Paste on Enamel Microhardness

Journal of Dental School
Objectives This study aimed to synthesize an herbal remineralizing paste containing the extracts of Miswak, licorice, aloe vera, propolis, and honey and compare its effect with 5% sodium fluoride (NaF) and 1.23% acidulated phosphate fluoride (APF) on ...
Mohadese Shokripour, Shiva Kavousinejad
doaj   +1 more source

Photoplastic effects in chalcogenide glasses: A review

, 2009
A synopsis of the various photoinduced changes of rheological, mechanical and elastic properties is presented in the first part of the article. After a critical appraisal of a large body of experimental data it suggested that the photoviscous effect ...
Asahara, Berkes, Borisova, Busse, Carlsson, Carlsson, Deryagin, Emelianova, Fritzsche, Fritzsche, Gerasimov, Goryuonova, Grenet, Gump, Hari, Hisakuni, Igo, Ihm, Ikeda, Ikeda, Kastrissios, Kastrissios, Kastrissios, Kastrissios, Kolobov, Kolomiets, Kolomiets, Kolomiets, Koseki, Koseki, Krecmer, Kruglov, Kryshenik, Kuczynski, Kyriazis, Küsters, Larmagnac, Manika, Manika, Matsuda, Matsuda, Natansohn, Natansohn, Nemilov, Osipyan, Osipyan, Ossipyan, Ovshinsky, Poborschii, Repka, Rykov, Salminia, Shimakawa, Shimakawa, Tagantsev, Tagantsev, Tagantsev, Tanaka, Tanaka, Tanaka, Trunov, Trunov, Trunov, Trunov, Trunov, Trunov, Trunov, Trunov, Vonwiller, Wolf, Wolf, Yannopoulos, Yannopoulos, Yu, Ziman   +74 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

Microhardness testing of plastics

Polymer Testing, 1982
Abstract Microhardness measurements have been carried out on polymethyl methacrylate, unplasticised polyvinyl chloride, polypropylene and acetal coplymer using two different test methods. In one case the depth of penetration of a Vickers indenter is measured during application of the load and in the other case the size of the Vickers indent has been ...
openaire   +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

A critical review of porous adsorbents for air separation: From fundamental insights to rational adsorbent design

AIChE Journal, Volume 72, Issue 4, April 2026.
Abstract Air separation via selective adsorption using porous adsorbents offers energy‐efficient alternatives to cryogenic distillation for producing high‐purity O2 and N2. Adsorbent efficacy depends on balancing selectivity, durability, and performance consistency across varying conditions. This comprehensive review critically discusses the design and
Tianqi Wang, Daisong Chen, Tianyi Zhang, Boyu Zhang, Ruiqiang Wang, Zhengdong Liu, Mei Hong, Youssef Belmabkhout, Qinfen Gu, Jin Shang   +9 more
wiley   +1 more source