Results 91 to 100 of about 1,288,419 (253)

Presence of voids after warm vertical compaction and single‐cone obturation in band‐shaped isthmuses using micro‐computed tomography: A phantom study

Microscopy Research and Technique, 2019
AbstractThe present micro‐computed tomography (micro‐CT) study compared the presence of voids in the band‐shaped isthmuses obturated by warm vertical compaction (WVC) and single‐cone (SC) techniques. Twenty mesial roots from mandibular first molar teeth showing a band‐shaped isthmus were selected and assigned into two groups based on their preoperative
Ali Keleş, Cangül Keskin
openaire   +3 more sources

ACSL4‐Dependent Lysosomal Lipid Peroxidation Links WTAP‐Mediated m6A Modification to Intervertebral Disc Degeneration

Advanced Science, EarlyView.
IL‐1β upregulates the protein level of WTAP, which promotes the m6A modification of ACSL4 mRNA in an IGF2BP2‐dependent manner, thereby enhancing its stability. The increased ACSL4 drives lipid peroxidation, leading to lysosomal membrane permeabilization (LMP) and impaired mitophagy, which collectively accelerate intervertebral disc degeneration (IVDD).
Shu Jia, Xu Gao, Laimin Zhu, Haixia Song, Jing Wu, Shang Chen, Sheng Gao, Lu Zhang, Chunyang Meng   +8 more
wiley   +1 more source

Evaluation of Apical Filling after Warm Vertical Compaction using Two Different Endodontic Materials: Resilon® and Gutta-Percha

World Journal of Dentistry, 2012
ABSTRACT Forty-eight extracted maxillary anterior teeth instrumented with ProTaper system to apical preparations 0.25, 0.40 and 0.60 mm (n = 16 each) were divided into six groups for filling as following: Group 1: Apical preparation 25/100 + gutta-percha/AH Plus sealer, group 2: Apical preparation 25/100 + Resilon/Real Seal, group 3: Apical preparation
Alfred Naaman, Carla Zogheib, Etienne Medioni   +2 more
openaire   +1 more source

Sublattice‐Resolved Magnetoelastic Coupling and Opposing Pressure Responses in the Frustrated Magnetocaloric GdMn2O5

Advanced Science, EarlyView.
In GdMn2O5, sublattice‐resolved EXAFS and diffraction analysis reveal pronounced spin‐phonon coupling and an unexpected opposing pressure response: the Mn‐driven Néel temperature slightly decreases while the Gd‐sublattice ordering temperature rises under pressures up to 0.86 GPa.
Romualdo S. Silva Jr., João E. Rodrigues, Javier Gainza, Henrik L. Andersen, Federico Serrano‐Sánchez, Neven Biskup, Olivier Mathon, Norbert M. Nemes, José L. Martínez, José A. Alonso   +9 more
wiley   +1 more source

Warm Compacting Behavior of Pure Titanium Powders

, 2011
Warm compacting behaviors of pure titanium powders were studied. The results show that warm compaction can be applied to titanium powders. The green densities obtained through warm compaction are generally higher than obtained through cold compaction at ...
Shi Wen He
core   +1 more source

Pressure‐Tuned Superconducting Dome and Persistent Charge‐Density‐Wave Order in NdSeTe2

Advanced Science, EarlyView.
NdSeTe2 exhibits an unusual pressure‐tuned phase diagram in which charge‐density‐wave order does not disappear at optimal superconductivity. Instead, Raman spectroscopy reveals a transformation from long‐range to short‐range correlations that remain invisible to resistivity and persist across the entire superconducting dome.
Shuyang Wang, Chao An, Jiaqi Chen, Lili Zhang, Yonghui Zhou, Xuliang Chen, Zhaorong Yang   +6 more
wiley   +1 more source

Biosynthesis of Spatially Differentiated Cellulose for Flexible All‐in‐one Supercapacitors

Advanced Science, EarlyView.
Spatially differentiated bacterial cellulose is grown by oxygen‐guided biosynthesis to form dense surface regions connected by an open fibrillar interlayer. This architecture supports electroactive material loading, ion transport, and mechanical stability in an all‐in‐one supercapacitor, showing how biological assembly can create device‐ready ...
Xin Shu, Yi Lu, Xuetong Shi, Zhangmin Wan, Peijin Jiang, Minke Yang, Qingshi Tu, Orlando J. Rojas   +7 more
wiley   +1 more source

Comparison of Apical Sealing Ability of Two Phases of Gutta–Percha: A Bacterial Leakage Model

Frontiers in Dentistry, 2016
Objectives: The aim of this study was to compare apical sealing ability of alpha and beta phases of gutta-percha by means of bacterial leakage model. Materials and Methods: Fifty single-rooted human premolars were selected. The root canals were prepared
Raheleh Emami, Sedigheh Khedmat, Salma Pirmoazen, Kiamars Honardar   +3 more
doaj  

Micro-Computed Tomography Assessment of the Quality of Obturation (Voids) of Single-Canal Maxillary Second Premolars by the Lateral Compaction Versus Continuous Warm Vertical Condensation Techniques [PDF]

Journal of Dentistry
Statement of the Problem: One of the most important stages of root canal treatment is obturation for the root canal, an obturation with less voids will have fewer treatment complications in the future.Purpose: This study was conducted to compare the ...
Romina Hajipour, Maryam Zare Jahromi, Masood Khabiri   +2 more
doaj   +1 more source

Palmitoyl Acyltransferase Zdhhc17 Promotes Functional Recovery After Spinal Cord Injury by Targeting the Nuclear Transport Factors Kpna2 and Ipo9

Advanced Science, EarlyView.
In this study, we demonstrate that Zdhhc17, acting as a PAT, suppresses neuronal apoptosis and promotes axon regeneration after injury, thereby enhancing functional recovery following SCI. In this context, Kpna2 and Ipo9 serve as novel palmitoylation substrates of Zdhhc17, whose palmitoylation prevents the injury‐induced degradation of their proteins ...
Meixuan Chen, Huan Chen, Sining Ding, Fan Liu, Xiaofei Zheng, Yuan Wang, Ruitu Tian, Huan Li, Peilin Liu, Le Hu, Bin Liu, Limin Rong, Mangmang Li   +12 more
wiley   +1 more source