Results 21 to 30 of about 38,961 (266)

Enamel Deproteinization: Will It Save The Shear Bond Strength For The Sake Of Preventing White Spot Lesions?

Brazilian Dental Science, 2021
Objective: This study attempted to investigate the effect of enamel deproteinization using citric acid, PEG 400 and NaOCL on the shear bond strength of orthodontic brackets to enamel using nano-silver modified resin for the prevention of white spot ...
Omnia A. Elhiny, Dina A. El-Refai
doaj   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

Advanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Acid etching behavior and mechanism in acid solution of iron components in basalt fibers

Open Chemistry
The acid-etching behavior and mechanism of basalt fiber in an acid solution determine the modification and application of basalt fiber. The effects of acid etching time, sulfuric acid concentration, acid etching temperature, and liquid–solid ratio on the
Zhou Lvshan, Xu Jingfan, Deng Zhenxiao, Zhang Yunfei   +3 more
doaj   +1 more source

The clinical effects of laser preparation of tooth surfaces for fissure sealants placement: a systematic review and meta-analysis

BMC Oral Health, 2019
Background This systematic review aimed to assess the clinical effects of laser preparation compared to other types of chemical or mechanical preparation of tooth surfaces used in fissure sealant placement.
Yunhan Zhang, Yan Wang, Yandi Chen, Yang Chen, Qiong Zhang, Jing Zou   +5 more
doaj   +1 more source

Effect of enamel-surface modifications on shear bond strength using different adhesive materials

BMC Oral Health, 2022
Background This study aimed to investigate the effect of enamel-surface modifications on the shear bond strength between ceramic brackets bonded using different adhesive materials and the enamel surface and to identify the most suitable clinical adhesive
Bo-wen Zheng, Shan Cao, Majedh Abdo Ali Al-Somairi, Jia He, Yi Liu   +4 more
doaj   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Effect of the time-point of acid etching on the persistence of sealer residues after using different dental cleaning protocols

Brazilian Oral Research
: Endodontic sealer residues remaining within the pulp chamber dentin after root canal obturation and cleaning with various solvents may compromise the appearance and the durability of dental restorations.
Keren Cristina Fagundes JORDÃO-BASSO, Milton Carlos KUGA, Matheus Coêlho BANDÉCA, Marco Antonio Hungaro DUARTE, Flávia Angélica GUIOTTI   +4 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

EFFECT OF ETCHING TIME AND ACID CONCENTRATION ON MICROMORPHOLOGICAL CHANGES IN DENTIN OF BOTH DENTITIONS [PDF]

Journal of IMAB, 2016
Aim: to compare micro morphological changes in primary and permanent dentin after etching with phosphoric acid (20% and 37,5%) for 7 and 15 sec. by SEM.
Natalia Gateva, Angela Gusyiska, Pavel Stanimirov, Rossitza Kabaktchieva, Ivan Raiche   +4 more
doaj   +1 more source