Results 51 to 60 of about 551,537 (297)

Evaluation of the Effect of Nanographene Oxide on Microleakage of Conventional and Resin-Modified Glass Ionomer

International Journal of Dentistry, 2023
Objectives. One of the important features of the restorative materials is the ability to seal and prevent the microleakage. Glass ionomer cement (GIC) still exhibits some microleakage despite establishing a chemical bond to the tooth.
Farahnaz Sharafeddin, Parisa Ghodrati
doaj   +1 more source

Color masking of developmental enamel defects: a case series

, 2015
Developmental defects involving color alteration of enamel frequently compromise the esthetic appearance of the tooth. The resin infiltration technique represents an alternative treatment for color masking of these lesions and uniformization of tooth ...
Borges, A. B. [UNESP], Borges, A. B., Torres, C. R. G., Torres, C. R. G. [UNESP]   +3 more
core   +1 more source

SemanticST: A Scalable Multi‐Contextual Graph Learning Framework for Uncovering Spatial Niches and Robust Multi‐Sample Integration in Spatial Transcriptomics

Advanced Science, EarlyView.
Technical limitations often let dominant signals overshadow rare cell types and fine‐grained heterogeneity in spatial transcriptomics. SemanticST, a graph neural network using multi‐semantic graph fusion and a novel min‐cut loss, recovers these subtle patterns.
Roxana Zahedi, Ahmadreza Argha, Nona Farbehi, Ivan Bakhshayeshi, Thantrira Porntaveetus, Youqiong Ye, Nigel H. Lovell, Hamid Alinejad‐Rokny   +7 more
wiley   +1 more source

Evaluation of dental restorations: a comparative study between clinical and digital photographic assessments

, 2014
The aim of this study was to compare the efficacy of a direct clinical evaluation method with an indirect digital photographic method in assessing the quality of dental restorations.
J Martin, J Estay, OB Oliveira, P Angel, Martin, Javier, G Moncada, Estay, Juan, Fresno, Maria Consuelo, Oliveira Júnior, Osmir Batista de [UNESP], MC Fresno, P Cisternas, Angel, Pablo, Cisternas, Patricia, E Fernandez, Silva, Francisco, Fernández, Eduardo, F Silva, Oliveira Júnior, Osmir Batista de, Moncada, Gustavo   +18 more
core   +1 more source

Performance Estimation and Ex Vivo Validation of Untethered Magnetic Robots in Soft Tissue

Advanced Science, EarlyView.
This study presents an empirical model that quantitatively predicts the step‐out frequency of screw‐type untethered magnetic robots (UMRs) in soft viscoelastic environments, including ex vivo brain tissue. By integrating key parameters into a dimensionless framework, the model enables estimation of robot performance across a range of biological ...
Leendert‐Jan W. Ligtenberg, Thijs J. van der Burg, Stijn Y. Kolkman, Santiago Saavedra Castano, David Fernandez Rivas, Anke Klingner, Roger M. L. M. Lomme, Lucas S. Joziasse, Dorothee Wasserberg, H. Remco Liefers, Doron Ben Ami, Udi Sadeh, Oded Shoseyov, Giulio Dagnino, Pascal Jonkheijm, Jurgen J. Fütterer, Stefano Stramigioli, J. Frank W. Nijsen, Michiel C. Warlé, Islam S. M. Khalil   +19 more
wiley   +1 more source

Enhancing IANB success: panoramic guidance for locating mandibular foramen

Journal of the Pakistan Medical Association
Objective: To explore the spatial relationship of the mandibular foramen with occlusal plane and the anterior border of the ramus using orthopantomograms.
Muhammad Zubair, Zahid Mehmood Khan, Ahmad Shah Khan, Jawad Ali Shah, Nadeem Ahmad Rana   +4 more
doaj   +1 more source

In vitro fluoride release and the antibacterial effect of glass ionomers containing chlorhexidine gluconate

, 2008
SUMMARY Fluoride release fromglass-ionomers (GI)may be important for the prevention of secondary caries. The addition of chlorhexidine gluconate (CHX) to glass-ionomer cement (3%) adds an effect that enables it to be used as a varnish for the ...
Hoszek, Anders,, Hoszek, Anders, D. Ericson, Ericson, Dan, A. Hoszek, Ericson, Dan,   +5 more
core   +1 more source

Intranasal Delivery of Gallium–Quercetin Nanoparticles for Multi‐Target Ferroptosis Inhibition in Parkinson's Disease

Advanced Science, EarlyView.
Leveraging the chemical similarity between Ga3+ and Fe3+ as well as the antioxidant properties of quercetin, gallium–quercetin nanoparticles (GQNPs) were prepared to integrate iron homeostasis regulation, oxidative stress suppression, and mitochondrial protection for multi‐target ferroptosis inhibition in Parkinson's Disease.
Keyang Xu, Dandan Kou, Xiao Xiao, Bingbing Bai, Caide Liu, Mengyao Wu, Yadan Shi, Mengdan Xu, Xiaoyi Cao, Haodi Qi, Shuhua Wu, Jianfeng Zeng, Mingyuan Gao   +12 more
wiley   +1 more source

Protease‐Triggered Chromogenic Release From Peptide‐Modified Calcium Carbonate Microspheres Enables Colorimetric Detection of Porphyromonas gingivalis Activity

Advanced Science, EarlyView.
We report a chromogenic release‐based assay system with protease‐cleavage peptide‐modified calcium carbonate microspheres for colorimetric detection of Porphyromonas (P.) gingivalis activity. In response to Arg‐specific gingipain secreted by P. gingivalis, the supernatant becomes colored, enabling colorimetric analysis and providing the monitoring of ...
Yuki Hiruta, Zhicheng Jin, Mari Adachi, Lubna Amer, Natalia O. Tjokro, Diego F. Trujillo, Jan Potempa, Anthony J. O'Donoghue, Casey Chen, Jesse V. Jokerst   +9 more
wiley   +1 more source

Practice in Operative Dentistry : Fault in Casting of Cast Restoration [PDF]

, 1992
P(論文)Practice with phantoms is an important part of preclinical education for dental students. This kind of training is now used in the department of dental materials and clinical departments in our school.
川上, 智史, 小出, 賢治, 松田, 浩一, 荊木, 裕司, 野田, 晃宏, 23344, 23345, 23346, 23347, 23348   +9 more
core