Results 21 to 30 of about 24,480 (261)

Microhardness of bulk-fill composite materials

open access: yesActa Clinica Croatica, 2016
The aim of the study was to determine microhardness of high- and low-viscosity bulk-fill composite resins and compare it with conventional composite materials. Four materials of high-viscosity were tested, including three bulk-fills: QuiXfi l (QF), x-tra
Katarina Kelić   +4 more
doaj   +1 more source

Effect of mouthwashes on the microhardness of aesthetic composite restorative materials

open access: yesAnales del Sistema Sanitario de Navarra, 2023
Background. Mouthwashes are increasingly being used worldwide. However, these preparations are known to have a negative impact on composite resin dental restorations.
Noura Alessa
doaj   +1 more source

Measurement and Analysis of Hydrogen Distribution in Stress Environment Using Vickers Microhardness Technique

open access: yesAdvances in Materials Science and Engineering, 2018
In this paper, the stress distribution field in front of the crack tip was obtained by loading a modified WOL specimen using a bolt. Considering the relationship between microhardness and hydrogen content or internal stress in the metal, a model based on
Lei Gu   +3 more
doaj   +1 more source

ENAMEL MICROHARDNESS AFTER APPLICATION OF 30% CARBAMIDE PEROXIDE AND SUBSEQUENTLY AFTER APPLICATION OF FLUORIDE

open access: yesJournal of Dentistry Indonesia, 2015
Thirty percent carbamide peroxide is widely used as in extra-coronal bleaching method. Its current effect on enamel (e.g. enamel microhardness) is still uncertain. In dentistry, fluoride is recommended to be applied in 60 seconds.
Inawati Muljadi   +2 more
doaj   +1 more source

Effect of organic acids in dental biofilm on microhardness of a silorane-based composite

open access: yesRestorative Dentistry & Endodontics, 2015
Objectives This study evaluated the effect of lactic acid and acetic acid on the microhardness of a silorane-based composite compared to two methacrylate-based composite resins. Materials and Methods Thirty disc-shaped specimens each were fabricated
Sedighe Sadat Hashemikamangar   +4 more
doaj   +1 more source

The Effect of Thermocycling and Surface Treatments on the Surface Roughness and Microhardness of Three Heat-Pressed Ceramics Systems

open access: yesCrystals, 2020
Dental ceramic restorations are widely used in restorative dentistry. However, these restorations can be affected once cemented in the oral cavity by several factors.
Roxana-Diana Vasiliu   +4 more
doaj   +1 more source

Effect of fluoride varnish on glass ionomer microhardness changes in endogenous acid erosion challenge

open access: yesBiomaterial Investigations in Dentistry, 2021
Objective This study aimed to assess the effect of fluoride varnish on glass ionomer microhardness changes after endogenous acid erosion challenge.
Fatemeh Moharramkhani   +4 more
doaj   +1 more source

Thermocycling effect on microhardness of laboratory composite resins

open access: yesBrazilian Journal of Oral Sciences, 2016
The aim of this study was to evaluate the thermocycling effect on microhardness of laboratory composite resins. 30 disks were fabricated, 5 mm of diameter and 2mm of width, using 3 laboratory resins: G1 (n=10) - RESILAB MASTER (Wilcos-Brasil), G2 (n=10) -
Sarina Maciel Braga Pereira   +5 more
doaj   +1 more source

Primary teeth microhardness and lead (Pb) levels

open access: yesHeliyon, 2019
Objectives: Lead (Pb) exposure is associated with dental caries. Whether Pb affects tooth microhardness, is unclear. Our objective was to assess whether Pb concentration is associated with microhardness.
Betsy Foxman   +6 more
doaj   +1 more source

Effect of Two Remineralizing Agents on Dentin Microhardness of Non-Caries Lesions [PDF]

open access: yesJournal of Dentistry, 2023
Statement of the Problem: The prevalence of non-carious dentin lesions is on the rise mainly due to improved life expectancy. Successful management of these lesions is often challenging, and given that dentin can be remineralized, adverse consequences ...
Haleh Heshmat   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy