Results 141 to 150 of about 331,041 (307)

Evaluation of stress distribution in an endodontically treated tooth restored with two different post and core systems in a maxillary central incisor: A finite element analysis study [PDF]

Background: An endodontic post plays a crucial role in stabilizing and supporting a core restoration when insufficient coronal dentin remains after root canal treatment.
Medum, Shabharish Shyam Kumar, Pavan, D S S Vishnu, Reddy, Upendra Natha, Sampathi, Naga Lakshmi Reddy, Meenakshi, Ch Meher, Neshaneni, Sathish Kumar   +5 more
core   +2 more sources

Orchestrated Engineered Polyphenol‐Peptide Condensates Coupled With β‐GP Reverses Diabetic Osteoporosis by Remodeling Mitophagy

Advanced Science, EarlyView.
A multifunctional β‐GP@EGCG‐E7 nanoplatform is engineered by polyphenol–peptide condensation and phosphate loading. Bone‐targeted delivery, antioxidant and anti‐inflammatory activity, and mitophagy restoration are integrated in one system, enabling protection of osteoblasts and endothelial cells and promoting bone regeneration under diabetic ...
Xiuyun Xu, Meiqin Zhang, Ting Wu, Erfan Wei, Andrei Y. Hancharou, Zeying Wang, Zijuan Wang, Letian Lv, Likun Wu, Xingtong Pan, Qiyue Zhu, Xinyi Dong, Hao Liu, Yongsheng Zhou   +13 more
wiley   +1 more source

Influence of two pediatric multivitamin forms on surface characteristics and color stability of single-shade composite, nanofilled composite, and glass ionomer cement: an in vitro study

BMC Oral Health
Background Gummy and chewable pediatric multivitamin formulations commonly contain citric acid and ascorbic acid, yielding pH values that may fall below the critical erosive threshold of 5.5.
Mai M. Elbatanony, Amal M. El Shahawi, Dalia Y. Zaki   +2 more
doaj   +1 more source

Ferritinophagy Rewires Carnitine‐Dependent Lipid Metabolism to Inhibit PRRSV and IAV Replication

Advanced Science, EarlyView.
NCOA4‐mediated ferritinophagy reprograms carnitine metabolism by disrupting Fe‐S cluster biogenesis, thereby establishing an iron‐lipid axis that suppresses various viruses, including PRRSV and IAV. However, viruses counteract this mechanism by degrading NCOA4.
Kaifeng Guan, Chenyang Yuan, Zekun Meng, Yanan Wang, Xueying Zhai, Chunjie Huang, Xiang Zhou, Gaiping Zhang   +7 more
wiley   +1 more source

Stress analysis of different experimental finite element models of rotary endodontic instruments

Bulletin of the National Research Centre
Aim The mechanical response was assessed through finite element analysis by comparing the cross-sectional impact of two rotary file mathematical models: CM wire and R-Phase. Methods New rotary file model designs were developed using computer-aided design
Manar M. Galal, Amira Galal Ismail, Nada Omar   +2 more
doaj   +1 more source

Mastication‐Induced Electrical Stimulation Activates Prg4+ Chondroprogenitors for Osteoarthritis Therapy

Advanced Science, EarlyView.
This study presents a ″trash‐to‐treasure″ strategy that converts harmful joint overloads into beneficial electrical cues. The biodegradable MagPie, by providing piezoelectrical stimulation and releasing Mg2+ during mastication, exerts synergistic pro‐regenerative and anti‐inflammatory effects on Prg4+ cells via the ECM‐mediated FAK‐PI3K‐Akt axis ...
Shi‐Yang Feng, Jing‐Rong Cheng, Yu Qin, Jie Lei, Chen‐Chen Gao, Hong‐Ying Fu, Li‐Ping Wu, Thanh D. Nguyen, Xu‐Liang Deng, Kai‐Yuan Fu, Yang Liu   +10 more
wiley   +1 more source

Effect of nano-fluorapatite filler particles on surface microhardness and mineralization capacity of an experimental oral film

Bulletin of the National Research Centre
Background The objective of the study was to prepare and assess novel remineralizing oral films loaded with fluorapatite powder and composed of a combination of hydroxyethyl cellulose (HC) and cellulose nanofibers (CF).
Dalia Y. Zaki, Engie M. Safwat, Haidy N. Salem, Shaymaa M. Nagi, Tamer M. Hamdy, Lamiaa M. Moharam, Mohammad L. Hassan, Marwa A. Sherief   +7 more
doaj   +1 more source

Evaluation of monomer conversion, Vickers hardness, compressive strength & water sorption of commercial dental composite resins

Brazilian Dental Science
Objective: The objective was to compare four commercially available resin-based composites so that clinicians can select an economic material that has better monomer conversion and improved mechanical properties with lower water sorption.
Saadia Bano Lone, Usama Siddiqui, Nayab Amin, Munazzah Ejaz, Saad Liaqat, Anila Asif, Zohaib Khurshid   +6 more
doaj   +1 more source

Quantum Photothermal Self‐Monitoring Fiber Probes for In Vivo Photothermal Therapy

Advanced Science, EarlyView.
A miniaturized quantum photothermal fiber probe based on a metal/polymer/glass composite optoelectronic fiber that simultaneously guides lightwave and microwave was developed for the first time. The probe achieves enhanced photothermal conversion (13°C/mW, 25°C–120°C range) while providing real‐time self‐monitoring with 0.2°C thermal resolution at the ...
Wanjun Li, Ruixiao Hu, Jie Mao, Jin Wo, Yunsong Zhang, Liang Chen, Ying Liu, Zhibo Li, Yongxin Lin, Minghui Du, Yaofei Chen, Libing Zhou, Tuan Guo   +12 more
wiley   +1 more source

SIRT6‐Mediated Deacetylation of ATF3 Promotes Silica‐Induced Lung Fibrosis by Enhancing its Nuclear Import via Binding to Importin α

Advanced Science, EarlyView.
SIRT6‐mediated ATF3 acetylation drives MGARP transcription and mitochondrial dysfunction in macrophages, promoting macrophage senescence and pulmonary fibrosis. Mechanistically, HSP70/Importin α competitively binds to ATF3, modulating its nuclear translocation.
Demin Cheng, Wenxia Bu, Fengxu Wang, Yueyuan Jin, Rongzhu Liu, Rui Zhao, Xuehai Wang, Mengna Jiang, Jinping Shen, Xinhang Cheng, Zuming Chen, Li Zhu, Jinlong Li, Zhenzhong Ge, Shichen Miao, Haotian Xu, Xiaoyu Zhou, Dongming Wang, Xinyuan Zhao   +18 more
wiley   +1 more source