Results 31 to 40 of about 124,510 (311)

Recrystallized parylene as a mask for silicon chemical etching [PDF]

open access: yes, 2008
This paper presents the first use of recrystallized parylene as masking material for silicon chemical etch. Recrystallized parylene was obtained by melting parylene C at 350°C for 2 hours.
Kuo, Wen-Cheng   +3 more
core   +2 more sources

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

open access: yesBrazilian 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   +4 more
doaj   +1 more source

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

open access: yesBMC 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   +5 more
doaj   +1 more source

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

open access: yesBMC 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   +4 more
doaj   +1 more source

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

open access: yesBrazilian 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

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Etching of aluminum for bonding Patent [PDF]

open access: yes, 1968
Etching aluminum alloys with aqueous solution containing sulfuric acid, hydrofluoric acid, and an alkali metal dischromate for adhesive ...
Emde, W. D., Pollack, I.
core   +1 more source

Self-etching ceramic primer versus hydrofluoric acid etching: Etching efficacy and bonding performance

open access: yesJournal of Prosthodontic Research, 2018
This study assessed the effect of pretreatment of hybrid and glass ceramics using a self-etching primer on the shear bond strength (SBS) and surface topography, in comparison to pretreatment with hydrofluoric acid and silane.40 rectangular discs from each ceramic material (IPS e.max CAD;EM, Vita Mark II;VM, Vita Enamic;VE), were equally divided (n=10 ...
Hatem M. El-Damanhoury   +1 more
openaire   +3 more sources

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

open access: yesOpen 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   +3 more
doaj   +1 more source

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

open access: yesJournal 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   +4 more
doaj   +1 more source

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