Results 91 to 100 of about 21,045 (246)

Using MALDI‐FTICR Mass Spectrometry to Enhance ZooMS Identifications of Pleistocene Bone Fragments Showing Variable Collagen Preservation

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Recent advances in high‐throughput molecular analyses of collagen peptides, especially ZooMS (Zooarchaeology by Mass Spectrometry), have permitted breakthroughs in the analysis of archaeological material that is highly fragmented, a factor that hinders morphological identification.
Pauline Raymond   +8 more
wiley   +1 more source

Cellulose Acetate Fibers With Infiltrated ZnO Nanocrystals: Activation of Antibacterial Properties Against Acne vulgaris by Oxygen Plasma Treatment

open access: yesSmall, EarlyView.
We present biodegradable cellulose acetate fibers infiltrated with ZnO nanocrystals for Acne treatment. Fibers produced by centrifugal spinning were vapor‐phase infiltrated to contain uniform ZnO nanocrystals. Oxygen plasma treatment enhanced the fibers´ wettability.
Martina Rihova   +12 more
wiley   +1 more source

Quantitative micro‐XRF combined with X‐ray imaging reveals correlations between Zn concentration and dentin tubule porosity across entire teeth

open access: yesVIEW, EarlyView.
The combination of calibrated micro‐CT and quantitative micro‐XRF measurement facilitates the correlation of density and composition in the 3D macro‐structure of teeth. Zn concentration in dentin increases by a factor of 10 toward the pulp. Incidentally, the overall density decreases, showing an association between Zn and the dentin tissue porosity ...
Ioanna Mantouvalou   +11 more
wiley   +1 more source

Surface Micro‐Discharge Plasma for Multiple Teeth Bleaching: Efficacy, Mechanism and Safety

open access: yesHigh Voltage, EarlyView.
ABSTRACT Hydrogen peroxide (H2O2) is the commonly‐used bleaching chemical in clinical practice, but its excessive concentrations can cause tooth damage. Atmospheric pressure cold plasma is considered a promising new technique for tooth bleaching. Surface micro‐discharge (SMD) devices can generate large‐scale plasma, which holds potential for treating ...
Ruike Chen   +7 more
wiley   +1 more source

Effect of Intracanal Medications on the Viability of Human Periodontal Ligament‐Derived Mesenchymal Stem Cells

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This in vitro study evaluated the effects of intracanal medications on the metabolic activity and adhesion of human periodontal ligament‐derived mesenchymal stem cells. Tested groups included Control (without medication), Triple Antibiotic Paste (TAP), Double Antibiotic Paste (DAP), calcium hydroxide with saline, calcium hydroxide with 2 ...
Arian Braido   +7 more
wiley   +1 more source

Dose‐Dependent Effects of Simulated Clinical Radiotherapy on the Structure and Properties of Root Dentine

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT Head and neck radiotherapy (HNRT) can expose teeth to moderate radiation doses, yet the effects on root dentine under clinically relevant conditions remain unclear. This in vitro study compared dentine subjected to 0, 30, or 50 Gy IMRT. Palatal roots from 35 maxillary molars were allocated to non‐irradiated, 30 Gy (oropharyngeal simulation ...
Anna Victória Costa Serique   +11 more
wiley   +1 more source

Trace Element Patterns in Juvenile Wild Chimpanzee Dentitions

open access: yesArchaeometry, EarlyView.
ABSTRACT Trace elements are used to infer mammalian early‐life diets, environmental toxins, dispersal patterns, stress histories, and weaning ages. Here, we employ laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS) to reveal elemental patterns in our closest living relatives, chimpanzees.
Tanya M. Smith   +5 more
wiley   +1 more source

Transient Hyperparathyroidism and Severe Intrauterine Osteopenia Linked to Novel Homozygous TRPV6 Deletion

open access: yesClinical Endocrinology, EarlyView.
ABSTRACT Context Placental calcium (Ca2+) transport is essential for foetal bone mineralisation and development, as well as for Ca2+ homoeostasis. Rare mutations in transient receptor potential vanilloid (TRPV) 6 of the infant cause insufficient maternal‐foetal Ca2+ transport through the placenta.
Teodora Grigore   +6 more
wiley   +1 more source

Effect of Connective Tissue Graft as an Adjunct to Guided Bone Regeneration in the Surgical Treatment of Peri‐Implantitis: A Dual‐Center Randomized Controlled Trial

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT Objectives To evaluate whether adding a connective tissue graft (CTG) to guided bone regeneration (GBR) improves clinical and radiographic outcomes in surgical peri‐implantitis treatment. Materials and Methods Thirty‐two patients with peri‐implantitis were randomly assigned to receive GBR and CTG (test group, TG) or GBR alone (control group ...
Lucrezia Paterno Holtzman   +7 more
wiley   +1 more source

p75NTR Promotes Circadian‐Driven Mineralization During Tooth Development via CK2/PER2 Pathway

open access: yesCell Proliferation, EarlyView.
The diagram illustrates how the circadian rhythm regulates the p75NTR‐CK2‐PER2 axis, driving rhythmic biomineralisation during tooth development. ABSTRACT Circadian rhythm is an essential biological process that synchronises physiological activities with environmental light/dark cycles.
Manzhu Zhao   +8 more
wiley   +1 more source

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