Results 141 to 150 of about 18,946 (293)

Influence of rubbing during etching on surface roughness and interfacial characteristics of intact enamel

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract Rubbing phosphoric acid during etching has been shown to improve surface roughness in prepared enamel. This study aimed to compare intact enamel's surface roughness and resin tag lengths after etching with and without rubbing. Extracted sound third molars were used for testing, mesially for conventional and distally for dynamic (rubbing ...
Moana Biedermann   +5 more
wiley   +1 more source

Effect of chitosan‐containing desensitizers applied prior to bleaching on the physical properties of enamel

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract This in vitro study evaluated the effects of adding chitosan (Chi) to desensitizing agents applied before dental bleaching on enamel properties. Bovine enamel specimens were allocated to seven groups (n = 12): no treatment (negative control), 2% NaF (positive control), 2% NaF + 2% Chi, 2% NaF + 5% Chi, 2% NaF + 5% KNO3, 2% NaF + 5% KNO3 + 2 ...
Júlia Barbato   +8 more
wiley   +1 more source

Using grape seed extract to reduce erosive potential of drinks

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract The aim of this study was to verify whether supplementation of grape seed extract (GSE) to different erosive beverages reduces their erosive potential on dentine in vitro. One‐hundred dentine specimens were randomly assigned to 5 groups (n = 20/group): control‐deionized water, 1%‐citric acid, Red Bull, Coca‐Cola, and Powerade.
Samira Helena Niemeyer   +5 more
wiley   +1 more source

Influence of Laser Repetition Rate, Fluence and Spot Size on LA‐Q‐ICP‐MS/MS 87Sr/86Sr Precision: Insights from Apatites and Silicate Glasses

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Higher laser repetition rate, fluence and larger spot size increase signal intensity. Higher laser repetition rate produces overlaps in aerosolised particles, improving signal stability and precision. For Sr‐rich materials, moderate spot diameter (≤ 60 μm), 3 J cm‐2 fluence and ≥ 12 Hz repetition rate are recommended.
Edafe O. Ominigbo   +4 more
wiley   +1 more source

The Effect of Mechanical Instrumentation on Dental Hard Tissue In Vitro: A Systematic Review

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Objective The aim of this review was to analyse the effects of hand instruments, ultrasonic scalers and air polishing devices on dental hard tissues, focusing on material loss and surface roughness. Methods Electronic databases MEDLINE, EMBASE, and the Cochrane Library were screened for relevant studies.
Katerina Mezquita Prieto Dvorska   +2 more
wiley   +1 more source

Bond Strength to Gutta‐Percha of a Novel Phase‐Stable Epoxy Resin Sealer Compared With Six Endodontic Sealers

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim To evaluate the bond strength of the reformulated epoxy resin‐based sealer AH Plus Ribbon to gutta‐percha using a previously described microshear bond strength test, and to compare its performance with that of six commercially available endodontic sealers representing different chemical classes.
Marco Simões‐Carvalho   +6 more
wiley   +1 more source

Effect of Whitening Dentifrices on Short‐Term Color Stability and Tooth Sensitivity After In‐Office Bleaching: A Randomized Single‐Blind Clinical Trial

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This randomized, single‐blind clinical trial evaluated the effect of whitening dentifrices on short‐term color stability and tooth sensitivity after in‐office bleaching. Materials and Methods A total of 120 participants treated with 40% hydrogen peroxide were randomly assigned to six dentifrice groups (n = 20): one conventional ...
Adem Gok, Begum Koprucuogullari
wiley   +1 more source

Air‐Abrasion With Aluminum Oxide Particles in Non‐Carious Cervical Lesions: Impact on Sclerotic Superficial Layer, Surface Topography, and Restorative Adhesive Performance

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of airborne‐particle abrasion (APA) with aluminum oxide on superficial dentin sclerosis, surface topography, and bonding performance of a universal adhesive in natural non‐carious cervical lesions (NCCLs), using dentin classification by the North Carolina Index (NCI) and Optical Coherence Tomography Index (OCT).
Nathalie Murielly Rolim de Abreu   +4 more
wiley   +1 more source

Diet‐Induced Chromogenic Challenge Model for Additively Manufactured Tooth‐Colored Dental Resin Materials

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives This study aimed to evaluate the color stability of glaze‐coated 3D‐printed resin materials stored in different nutritionally beneficial smoothies that are commonly consumed. Methods Disc‐shaped (27 × 1 mm) specimens were fabricated from tooth‐colored 3D‐printed dental resins with different indications: Arma Resin (Group A ...
Ülkü Tuğba Kalyoncuoğlu   +2 more
wiley   +1 more source

Auxin response and PIN‐mediated transport in chlorophyte algae

open access: yesJournal of Integrative Plant Biology, EarlyView.
Like multicellular plants, green algae respond to auxin and move it across their cells. However, their PIN‐like proteins do not act like plant auxin exporters, suggesting that basic auxin transport evolved early and specialized directional transport appeared later in plant evolution.
Adrijana Smoljan   +11 more
wiley   +1 more source

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