Results 61 to 70 of about 29,343 (295)

Internal fit and marginal adaptation of CAD/CAM lithium disilicate endocrowns fabricated with conventional impression and digital scanning protocols. An in-vitro study

Egyptian dental journal, 2022
Aim: To evaluate the internal and marginal adaptation of computer aided design/computer aided manufacturer fabricated lithium disilicate endocrowns restoring endodontically treated maxillary molars and produced by conventional impression and digital ...
Hanaa Nassar
semanticscholar   +1 more source

Enabling Real‐Time, Non‐Ionizing 3D Imaging of Implantable Magnetic Cements Using Magnetic Particle Imaging

Advanced Materials Interfaces, EarlyView.
This study reports the first implantable resin cement capable of orientation‐sensitive Magnetic Particle Imaging (MPI). By coating the cement with an ultrathin iron film, the authors achieve a strong, angle‐dependent MPI signal that enables non‐ionizing, real‐time tracking of both implant position and orientation, opening new possibilities for safe ...
Gabriel C. Pinto, João M. Costa, Simão P. Fernandes, Gabriela F. Resende, Eduardo T. C. Coimbra, Patrick Vogel, Mariana B. Oliveira, Marco Giardiello, Ricardo M. Silva, Armando A.C.S. Lourenço, Nuno J. O. Silva   +10 more
wiley   +1 more source

Marginal adaptation of provisional crowns made of acrylic and bisacrylic resins using different impression materials

Brazilian Journal of Oral Sciences, 2019
Aim: To evaluate the marginal adaptation of provisional crowns made of acrylic and bisacrylic resins using different impression materials. Methods: a metal die and a matrix applied through a direct technique were used to fabricate the specimens.
Camilla Lopes Cerqueira, Roniel Kappler, Andrea Araújo Nobrega Cavalcanti, Emilena Maria Castor Xisto Lima   +3 more
doaj   +1 more source

The Influence Of Thermocycling On The Marginal adaptation Of Different Glass Ceramic Sectional Veneers

MSA Dental Journal, 2022
Background: Sectional veneers constructed from different glass ceramic can show variations in the marginal adaptation before and after thermocycling.
A. Tantawy
semanticscholar   +1 more source

Programmable Dimensional Lithography with Digital Micromirror Devices for Multifunctional Microarchitectures

Advanced Materials Technologies, EarlyView.
This review explores recent advances in digital micromirror device (DMD)‐based lithography, focusing on its programmable light modulation, multi‐material compatibility, and dimensional patterning strategies. It highlights innovations from optical system design to materials integration and multifunctional applications, positioning DMD lithography as a ...
Yubin Lee, Byungcheon Yoo, Chaeyeong Ryu, Jongwon Oh, Dahye Baek, Jiseok Lee   +5 more
wiley   +1 more source

Engineered Microfluidic Organoid Systems: New Paradigms for Menopause Mechanism Research and Personalized Medicine

Advanced Materials Technologies, EarlyView.
This review explores the integration of microfluidic technology with organoid systems as an innovative platform for studying menopausea complex multi‐organ condition. By enabling precise simulation of inter‐organ communication and hormone responses, microfluidic organoids offer a physiologically relevant model for investigating menopausal syndrome and ...
Qianyi Zhang, He Huang, Hongliang Dong, Qiang Ma, Hongyan Jin   +4 more
wiley   +1 more source

Effects of the Cervical Marginal Relocation Technique on the Marginal Adaptation of Lithium Disilicate CAD/CAM Ceramic Crowns on Premolars.

Journal of Contemporary Dental Practice, 2021
AIM AND OBJECTIVE To evaluate the effect of cervical margin relocation (CMR) for crowns designed using CAD/CAM technology and fabricated from lithium disilicate (e.max, CAD) before and after aging; and to compare the fracture forces and failure type of ...
N. M. Alahmari, Hafiz Adawi, M. Moaleem, F. M. Alqahtani, F. Alshahrani, T. A. Aldhelai   +5 more
semanticscholar   +1 more source

Extracellular Vesicle‐Delivered tRF‐His‐GTG‐1 Reprograms Neutrophil Lipophagy and Triggers Inflammation in COVID‐19

Advanced Science, EarlyView.
This study identifies platelet‐derived extracellular vesicles as key immunometabolic regulators in COVID‐19. The delivery of tRF‐His‐GTG‐1 to neutrophils activates TLR8mTOR signaling, disrupts lipophagy, and amplifies NET‐mediated inflammation. Importantly, targeting this axis restores neutrophil homeostasis, offering a potential therapeutic strategy ...
Tsai‐Ling Liao, Po‐Yu Liu, Yi‐Ming Chen, Kuo‐Tung Tang, Hung‐Jen Liu, Der‐Yuan Chen   +5 more
wiley   +1 more source

Marginal integrity of restorations produced with a model composite based on polyhedral oligomeric silsesquioxane (POSS)

Journal of Applied Oral Science, 2015
Marginal integrity is one of the most crucial aspects involved in the clinical longevity of resin composite restorations.Objective To analyze the marginal integrity of restorations produced with a model composite based on polyhedral oligomeric ...
Luciano Ribeiro CORREA NETTO, Alexandre Luiz Souto BORGES, Heloisa Bailly GUIMARÃES, Elis Regina Nunes de ALMEIDA, Laiza Tatiana POSKUS, Eduardo Moreira da SILVA   +5 more
doaj   +1 more source

Fit of cobalt-chromium copings fabricated by the selective laser melting technology and casting method: A comparative evaluation using a profilometer

Dental Research Journal, 2020
Background: This study aimed to assess the marginal adaptation and internal fit of cobalt-chromium copings fabricated by the selective laser melting (SLM) and conventional techniques using a profilometer.
Koosha Gholamrezaei, Fariborz Vafaee, Behzad Fathi Afkari, Farnaz Firouz, Mozhgan Seif   +4 more
doaj   +1 more source