Results 81 to 90 of about 2,901 (210)

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

Mechanical and bioactivity assessment of wollastonite/PVA composite synthesized from bentonite clay

open access: yesCerâmica
Glass/polymer composites can mimic the natural structure of bone by possessing a fiber-matrix configuration which provides appropriate physical and biological properties.
L. A. Adams   +2 more
doaj   +1 more source

Graphene oxide–modified fluoridated varnish promotes mineral recovery in demineralized bovine enamel: An in vitro study

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract This in vitro study evaluated the efficacy of an experimental fluoridated varnish modified with graphene oxide (GO) nanoparticles in arresting initial caries lesion progression and promoting mineral recovery in demineralized bovine enamel.
Mariana Souza Rodrigues   +5 more
wiley   +1 more source

Eoarchean–Paleoproterozoic Tectonothermal History of the Acasta Gneiss Complex Constrained by Titanite and Apatite Petrochronology

open access: yesGeochemistry, Geophysics, Geosystems
Deciphering Earth's earliest geodynamic processes requires temporally constrained chemical and structural data from rare exposures of ancient rocks.
Omar Khalil Droubi   +6 more
doaj   +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

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook   +38 more
wiley   +1 more source

A Systematic Review Evaluating Methods for Diagnosis, Treatment and Prevention of Dental Erosions

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Aim The aim of this systematic review was to investigate the quality of evidence for methods used to diagnose, restore and prevent dental erosions, by evaluating and summarising clinical controlled studies and in situ studies covering this field.
Maria Skalsky Jarkander   +5 more
wiley   +1 more source

The Complex World of Toothpaste Diversity, Meeting Patient Clinical Needs. An Umbrella Review

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Background Amidst numerous recent advancements in toothpaste formulations and active ingredients, some clinicians may believe all toothpastes are similar despite differences in their active ingredients and corresponding clinical application.
Jeanie Suvan, Crystal Marruganti
wiley   +1 more source

Radiographic Intraradicular Reduction of a Calcium Silicate–Based Sealer: Case Reports

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim To document radiographically observable intraradicular reduction of AH Plus Bioceramic, a premixed calcium silicate–based sealer (CSBS), during clinical follow‐up after nonsurgical root canal retreatment. Summary Four cases of nonsurgical root canal retreatment performed with a premixed CSBS using a single‐cone obturation technique are ...
Damien Savoure   +3 more
wiley   +1 more source

(Ultra)high‐Pressure Metamorphism in Sedimentary Versus Basaltic Rocks: Insights From a Variscan Mélange in the South Carpathians

open access: yesJournal of Metamorphic Geology, EarlyView.
ABSTRACT Reconstructing the pressure–temperature–time (P–T–t) evolution of (ultra)high‐pressure rocks is essential for constraining subduction and collisional dynamics. Subduction zones are often investigated using basic eclogites, whereas nonbasic high‐pressure rocks remain comparatively understudied, potentially hindering a comprehensive ...
Otavio S. G. Silva   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy