Results 11 to 20 of about 91,863 (168)

Effects of mouthwashes on Knoop hardness and surface roughness of dental composites after different immersion times

Brazilian Oral Research, 2011
The aim of this in vitro study was to evaluate the effect of different mouthwashes on superficial roughness and Knoop hardness of two resin composites. Eighty specimens (6 mm Ø and 2 mm height) were prepared and divided into eight experimental groups (n =
Diogo de Azevedo Miranda, Carlos Eduardo dos Santos Bertoldo, Flávio Henrique Baggio Aguiar, Débora Alves Nunes Leite Lima, José Roberto Lovadino   +4 more
doaj   +2 more sources

Knoop Hardness of Self-Etch Adhesives Applied on Superficial and Deep Dentin

Journal of Dentistry, 2020
Statement of the Problem: Low pH of self-etch adhesives might cause suboptimal polymerization. Purpose: This study aimed to evaluate the effect of dentin depth (deep and superficial) on polymerization efficacy of two self-etch adhesives, with different
Maryam Firouzmandi, Shideh Khashaei
doaj   +2 more sources

Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement

Brazilian Oral Research, 2009
This study evaluated the Knoop hardness of a dual-cured resin cement (Rely-X ARC) activated solely by chemical reaction (control group) or by chemical / physical mode, light-cured through a 1.5 mm thick ceramic (HeraCeram) or composite (Artglass) disc ...
Nelson Tetsu Iriyama, Rubens Nisie Tango, Izabella Paola Manetta, Mário Alexandre Coelho Sinhoreti, Lourenço Correr Sobrinho, Guilherme de Siqueira Ferreira Anzaloni Saavedra   +5 more
doaj   +2 more sources

Effect of different light curing units on Knoop hardness and temperature of resin composite

Indian Journal of Dental Research, 2009
Aim: To evaluate the influence of quartz tungsten halogen and plasma arc curing (PAC) lights on Knoop hardness and change in polymerization temperature of resin composite.
Guiraldo Ricardo, Consani Simonides, Xediek Consani Rafael, Mendes Wilson, Lympius Thais, Coelho Sinhoreti Mario   +5 more
doaj   +2 more sources

Effect of exposure time vs. irradiance on knoop hardness of dental composites

Materials Research, 2006
A comparison was made of the hardness of Z250 and Esthet-X composites light cured with different light sources. Cavities (3 mm diameter x 6 mm deep) were prepared in 240 bovine incisors. The composite was bulk inserted and light-cured using halogen light,
Américo Bortolazzo Correr, Mário Alexandre Coelho Sinhoreti, Lourenço Correr-Sobrinho, Rubens Nisie Tango, Simonides Consani, Luis Felipe Jochins Schneider   +5 more
doaj   +2 more sources

814 Knoop Hardness Testing for Amorphous Thin Film and Estimation of Deformation Region around the Indentaion using Nanoindentation Test

, 2004
Naoto Fujinaga, Yoshikazu RIGA, Akihiro NAKATANI, Hiroshi Kitagawa   +3 more
openalex   +3 more sources

Comparative Evaluation of Bulk-Fill Composite Resins: Knoop Microhardness, Diametral Tensile Strength and Degree of Conversion

Clinical, Cosmetic and Investigational Dentistry, 2022
Bruna Scarcello Strini,1 Joyce Figueiredo de Lima Marques,1 Renata Pereira,1 Danielle Ferreira Sobral-Souza,2 Vanessa Gallego Arias Pecorari,3 Priscila Christiane Suzy Liporoni,4 Flávio Henrique Baggio Aguiar1 1Department of Restorative Dentistry ...
Strini BS, Marques JFL, Pereira R, Sobral-Souza DF, Pecorari VGA, Liporoni PCS, Aguiar FHB   +6 more
doaj   +2 more sources

Correlation between fluoride release, surface hardness and diametral tensile strength of restorative glass ionomer cements. [PDF]

J Clin Exp Dent
Background The aim of this study was to determine if there is a correlation between fluoride release, surface hardness, and diametral tensile strength of restorative glass ionomer cements (GICs).
Pardi M, da Cunha BM, Cunha HM, Marques MES, Ribeiro KL, Cruz CE, Costa CR, Lepri CP, de Castro DT.   +8 more
europepmc   +2 more sources

Effect of Simulated Pulpal Pressure on Knoop Hardness of Two Self-etch Adhesives with Different Aggressiveness.

Journal of Contemporary Dental Practice, 2020
AIM Simulated pulpal pressure (PP) has been shown to affect the bond strength and nanoleakage of different adhesives at dentin interfaces but the effect of simulated PP on polymerization of adhesives has not been studied yet.
Maryam Firouzmandi, F. Shafiei, M. Mohaghegh, Sonia Hessami   +3 more
semanticscholar   +1 more source

Effect of Ceramic Interposition and Post-activation Times on Knoop Hardness of Different Shades of Resin Cement.

Brazilian Dental Journal, 2018
The aim of this study was to evaluate Knoop hardness of different shades of a resin cement light-cured directly or through ceramic discs, measured 15 min or 24 h after light exposure, and at different depths.
Marina Barrêto Pereira Moreno, A. R. Costa, F. Rueggeberg, A. Correr, M. Sinhoreti, G. Ambrosano, S. Consani, Lourenço Correr   +7 more
semanticscholar   +1 more source