Results 41 to 50 of about 8,256,293 (302)

3D PRINTING OF A LOWELL MAKES MASK IN PLA

open access: yesМедична наука України, 2021
Relevance: The new pandemic crisis caused by the Covid19 virus has led to a global shortage of personal protective equipment including FFP2 masks necessary for the exercise of professionals in direct contact with positive patients. Objective: 3D print
Elmoutawakkil Nidal   +4 more
doaj   +1 more source

PROTOCOL FOR PERIODONTAL TOOTH PREPARATION WITH ER-YAG LASER BEFORE FIXED PROSTHETIC TREATMENT [PDF]

open access: yesJournal of IMAB, 2020
Purpose: Every clinician encounter isses with problematic periodontal tissue around teeth intended to be treatet prosthetically. Swollen, reddish, with deeper periodontal pockets and and impossible to dry up with air flow.
Plamen Nenkov   +2 more
doaj   +1 more source

Developmental programmes drive cellular plasticity, disease progression and therapy resistance in lung adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
This study shows that lung adenocarcinomas exploit developmental branching morphogenesis to acquire a therapy resistant basal‐like tumour cell state. This process was found to be regulated by combined TP53 loss‐of‐function and type‐I interferon signalling, identifying a novel axis for biomarker and therapeutic target discovery.
Kamila J Bienkowska   +13 more
wiley   +1 more source

Mechanical and optical effects of post-curing time and device type in two 3D-printed resin systems

open access: yesBMC Oral Health
Aim The aim of this study was to investigate the effect of post-polymerization time and curing device type on the surface roughness, microhardness and color change of 3D printed permanent resin materials.
Murat Büyükpolat   +5 more
doaj   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

open access: yesFEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

The effect of polishing pastes on the surface roughness, microhardness, gloss, and color change of resin composites

open access: yesBMC Oral Health
Objective The use of polishing pastes in the final surface preparation of resin composite restorations has become increasingly common. This study aimed to evaluate the effects of polishing pastes containing abrasives of different particle sizes on the ...
Murat Büyükpolat   +4 more
doaj   +1 more source

Burden of Edentulism and Severe Tooth Loss in Ageing East Asia, 1990–2050

open access: yesInternational Dental Journal
Introduction and aims: Edentulism and severe tooth loss are important non-fatal oral conditions in ageing societies. This study aimed to quantify temporal trends in disease burden, older-age concentration, sex-specific patterns, and exploratory ...
Lina Yang, Ying Gao, Yanting Wu
doaj   +1 more source

Evaluating the effect of γ‐oryzanol on MASLD pathology using a medaka fish model

open access: yesFEBS Open Bio, EarlyView.
This study explores a liver disease called MASLD, which is increasing worldwide and can lead to serious damage. Researchers used medaka fish instead of rodents to test a food compound, γ‐oryzanol. Fish fed this compound had less liver fat and healthier gut bacteria.
Yukako Ito   +7 more
wiley   +1 more source

Evaluation of surface roughness, microhardness, and color change of 3D-printed resins post-polymerized with glycerin gel

open access: yesBMC Oral Health
Objective The aim of this study was to investigate the effects of post-polymerization protocols with and without glycerin on surface roughness, microhardness, and color change of permanent restorative resins fabricated using stereolithography (SLA) and ...
Murat Büyükpolat   +4 more
doaj   +1 more source

Attrition in a Multi-Component Smoking Cessation Study for Females

open access: yesTobacco Induced Diseases, 2006
Limiting attrition (i.e., participant dropout before the conclusion of a study) is a major challenge faced by researchers when implementing clinical trials.
Robert F. Leeman   +6 more
doaj   +1 more source

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