Results 41 to 50 of about 2,011,929 (253)

The Effect of Different Finishing Lines on the Marginal Fitness of Full Contour Zirconia and Glass Ceramic CAD/CAM Crowns (An in-vitro study) [PDF]

Journal of Dental Materials and Techniques, 2015
Purpose: The aim of this study was to evaluate the effect of two gingival finishing lines (90° shoulder and deep chamfer) on the marginal fitness of two types of full anatomic all-ceramic crowns; zirconia crowns (Zikonzhan) and glass ceramic crowns (IPS ...
ZAK Al-Zubaidi, AMW Al-Shamma
doaj   +3 more sources

Digital analysis of internal fit variation of additively manufactured crown patterns [PDF]

Exploration of BioMat-X
Aim: The purpose of this study was to digitally quantify the consistency and variation of printed resin crown patterns produced by different 3D printers, aiming to evaluate their clinical relevance and accuracy.
Wendy A. Clark, Mustafa Girnary, Tariq Alsahafi, Ariana Motamedi, Ingeborg J. De Kok   +4 more
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Avaliação da adaptação marginal e interna de facetas cerâmicas confeccionadas por três diferentes métodos [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2010O objetivo deste estudo foi avaliar in vitro a influência de três diferentes métodos de confecção de ...
Ribeiro, Luciana Gazaniga Maia
core  

Effect of Thickness of Zirconia Core on Marginal Adaptation of All-Ceramic Restorations

Journal of Islamic Dental Association of Iran, 2014
Background and Aim : Marginal adaptation is important for long-term Successof full-coverage restorations. Thickness of core is one of the important factors influencing the marginal integrity.Thus, the aim of this studywas to evaluate the effect of ...
Ezatollah Jalalian, Mona Sadegh, Sedighe Masoomi, Shahriar Jalalian, Aida Evazi Ziyaei   +4 more
doaj  

Comparison between Marginal Gap of Stone and Metal Dies in a CAD/CAM System

Dentistry 3000
Objective: The purpose of this study was to evaluate and contrast the zirconia crown's marginal gap on stone and metal dies in a CAD/CAM system. Materials and Methods: After preparing a melamine tooth (lower six molar) with 1.5mm occlusal reduction, 1 ...
Quasy Abdulateef Hasan, Shahrazad Fouad Karkosh, Raya Hatim Salal, Sandus I. ibrahim, Zainab Talib Kareem   +4 more
doaj   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Marginal Gap Formation in Approximal "Bulk Fill" Resin Composite Restorations After Artificial Ageing.

, 2018
The aim of this in vitro study was to investigate the marginal gap formation of a packable "regular" resin composite (Filtek Supreme XTE [3M ESPE]) and two flowable "bulk fill" resin composites (Filtek Bulk Fill [3M ESPE] and SDR [DENTSPLY DeTrey]) along
Mühlebach, Sarah, S Flury, Lussi, Adrian, A Lussi, A Peutzfeldt, Flury, Simon, S Mühlebach, Peutzfeldt, Anne   +7 more
core   +1 more source

Monowave and polywave light-curing of bulk-fill resin composites: degree of conversion and marginal adaptation following thermomechanical aging

Biomaterial Investigations in Dentistry, 2021
Aim: This study aimed to evaluate the effect of polymerization with either a monowave (MW) or a polywave (PW) light-curing unit (LCU) on the degree of conversion (DC) and marginal adaptation following thermomechanical aging of an ormocer bulk-fill resin ...
Sheila Celia Mondragón Contreras, Ana Luiza Barbosa Jurema, Evaniele Santos Claudino, Eduardo Bresciani, Taciana Marco Ferraz Caneppele   +4 more
doaj   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source