Results 61 to 70 of about 360,909 (306)

Evaluation of Fracture Resistance of Indirect Ceramic Overlay Used with Different Fiber-incorporated Base Materials

Erbil Dental Journal
Background and Objectives: Adhesive ceramic overlay restorations have become a popular, conservative alternative to full-coverage crowns, with Computer-aided design and Computer-aided Manufacture technology improving fabrication efficiency.
Abdullah Majid Bazrgan, Bassam Karem Amin   +1 more
doaj   +1 more source

Exploring the impact of remaining tooth structure and preparation size on the fracture resistance of endodontically treated mandibular premolars [PDF]

Journal of Dental Research, Dental Clinics, Dental Prospects
Background. This study evaluated the influence of the combined effects of remaining dentin walls and mechanical instrumentation with taper sizes of 0.04 and 0.06 on the fracture resistance of endodontically treated mandibular premolars. Methods.
Sıla Nur Usta, Hilal Tekkanat, Yiğitcan Sağlam, Cumhur Aydin   +3 more
doaj   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

Advanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo, Daniela Winsley Valereto Friozi, Vinícius de Oliveira, Marcia Cristina Branciforti   +3 more
wiley   +1 more source

Role of the flat-designed surface in improving the cyclic fatigue resistance of endodontic NiTi rotary instruments [PDF]

, 2019
The aim of this study was to investigate the role of the flat-designed surface in improving the resistance to cyclic fatigue by comparing heat-treated F-One (Fanta Dental, Shanghai, China) nickel-titanium (NiTi) rotary instruments and similar prototypes,
D'Angelo, M., Di Nardo, D., Donfrancesco, Orlando, Galli, M., Gambarini, G., Khrenova, Tatyana, Miccoli, G., Seracchiani, M., Testarelli, L.   +8 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Fracture toughness of a zirconia engineering ceramic and the effects thereon of surface processing with fibre laser radiation [PDF]

, 2010
Vickers hardness indentation tests were employed to investigate the near-surface changes in the hardness of a fibre laser-treated and an as-received ZrO2 engineering ceramic.
Lawrence, Jonathan, Shukla, Pratik, Wu, H.   +2 more
core   +3 more sources

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Fracture resistance of overlays of upper premolars restored by two types of pressable ceramics. [PDF]

Alexandria Dental Journal
INTRODUCTION: There is a lack of scientific evidence about the fracture resistance properties of the newly introduced pressable type zirconia-reinforced lithium silicate when partial coverage is indicated for upper premolars.
Abdelaziz Abdelaal, Hany Kehela, Ahmed Holiel   +2 more
doaj   +1 more source

Microstructural Control and Alloy Design for Improving the Resistance to Delayed Fracture of Ultrahigh-Strength Automotive Steel Sheets

Metals, 2023
The demand for higher-strength automotive steel sheets has increased significantly for lightweight and safe body concepts. However, the increment of the steel strength is often limited by the potential occurrence of delayed fracture. This paper discusses
Takehide Senuma, Mitsuhiro Okayasu, Hardy Mohrbacher   +2 more
doaj   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source