Results 121 to 130 of about 355,884 (306)

A Comparative Assessment of Fracture Resistance of Zirconia Crowns Prepared With Different Finish Line Designs – A In Vitro Study

Journal of Pharmacy and Bioallied Sciences
Introduction: The purpose of this work is to evaluate and contrast many finish line designs on monolithic zirconia crown fracture resistance. Materials and Methods: Four typhodont mandibular first molar teeth (Nissin TM) were acquired.
Jobin Joy, K Abhinav Mohan, Unni Pympallil, Cimmy Augustine, Lino Paul, Nirosha Vijayan   +5 more
doaj   +1 more source

Temperature and load-ratio dependent fatigue-crack growth in the CrMnFeCoNi high-entropy alloy [PDF]

, 2019
Multiple-principal element alloys known as high-entropy alloys have rapidly been gaining attention for the vast variety of compositions and potential combinations of properties that remain to be explored. Of these alloys, one of the earliest, the ‘Cantor
George, EP, Gludovatz, B, Laplanche, G, Ritchie, RO, Thurston, KVS, Yu, Q   +5 more
core  

Fracture Resistance of Various Temporary Crown Materials

The Journal of Contemporary Dental Practice, 2007
AbstractAimThe aim of this study was to evaluate the fracture resistance of various provisional crown materials using anin vitromodel test system.Methods and MaterialsIn the present study polycarbonate crowns, prefabricated by the manufacturer (3M Polycarbonate Crown), and the temporary crowns, fabricated in the dental laboratory environment, were ...
Asude, Yilmaz, Seyfettin, Baydaş
openaire   +2 more sources

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Effect of Fiber-Reinforced Composite Placement Site on Fracture Resistance of Premolar Teeth: An in vitro Study

Clinical, Cosmetic and Investigational Dentistry
Raghad Tariq AlJarboua,1 Reem Ahmad Alshihry,1 Haya Othman Alkhaldi,1 Fadak Hussain Al Marar,1 Mohammed A Aljaffary,2 Mohammed L Almana,2 Abdulrahman A Balhaddad,3 Othman Alkhateeb2 1Internship Program, College of Dentistry, Imam Abdulrahman Bin Faisal ...
AlJarboua RT, Alshihry RA, Alkhaldi HO, Al Marar FH, Aljaffary MA, Almana ML, Balhaddad AA, Alkhateeb O   +7 more
doaj  

Parameter Variation in Planetary Ball Milling of Titanium Aluminide Powder in XHV‐Adequate Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann, Armin Piwek, Julius Peddinghaus, Kai Brunotte, Bernd-Arno Behrens   +4 more
wiley   +1 more source

The influence of cavity design for cusp coverage on fracture strength of weakened maxillary first premolars using two esthetic restorative systems (CAD/CAM hybrid ceramic and nanohybrid composite) (An in vitro study)

Journal of Baghdad College of Dentistry, 2015
Background: Maxillary first premolar with wide MOD cavity more susceptible to fracture. The aim of this study was to assess the influence of cavity design for cusp coverage on the fracture resistance of weakened maxillary first premolar restored with CAD/
Zainab S Jawad, Abdul Karim J Al-Azzawi   +1 more
doaj  

Fracture resistance and fractographic analysis of pressable glass-ceramics with different partial coverage designs for maxillary premolars

BMC Oral Health
Background Partial coverage concepts have met the main goal of conservative dentistry. Vonlays, which combine features of veneers and onlays, are a recent alternative to full coverage designs and overlay partial coverage restorations. This in vitro study
Abdelaziz M. Abdelaal, Hany A. Kehela, Ahmed A. Holiel   +2 more
doaj   +1 more source

Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories

Advanced Engineering Materials, EarlyView.
A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi, Stephan Roth, Christos G. Aneziris, Bjoern Kiefer   +3 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source