Results 11 to 20 of about 360,909 (306)

Nanofibril-mediated fracture resistance of bone [PDF]

open access: yesBioinspiration & Biomimetics, 2021
Abstract Natural hard composites like human bone possess a combination of strength and toughness that exceeds that of their constituents and of many engineered composites. This augmentation is attributed to their complex hierarchical structure, spanning multiple length scales; in bone, characteristic dimensions range from nanoscale ...
Ottman A Tertuliano   +4 more
openaire   +4 more sources

Fracture resistance of veneers in premolars [PDF]

open access: yesEuropean Journal of Dentistry, 2018
ABSTRACT Objective: The purpose of the study was to compare the fracture resistance of ceramic veneers and composite resin veneers with and without dental preparation. Materials and Methods: Forty freshly extracted mandibular premolars were selected and randomly assigned into four groups (n = 10): Group NPR = no dental preparation and direct ...
Linhares, Ludmilla Azevedo   +2 more
openaire   +4 more sources

Fracture Resistance of Ceramics: Edge Fracture Method [PDF]

open access: yesStrength of Materials, 2005
Fracture resistance of macrohomogeneous linear elastic yttria, scandia, alumina, zirconia, and silicon nitride ceramics was studied upon flaking of the edges of rectangular specimens with the Rockwell indenter. The correlation between the obtained estimates and fracture toughness test results gained by the single-edge V-notched beam method was ...
Gogotsi, G.A.   +3 more
openaire   +2 more sources

Fracture Resistance of Reattached Hydrated Fragment of Fractured Incisors

open access: yesInternational Journal of Clinical Pediatric Dentistry, 2020
Fragment reattachment procedure provides conservative treatment option when an intact fractured fragment is available. Rewetting of fractured fragment before reattaching has shown better bond strength of attached fragment. Therefore, fracture resistance of reattached fractured fragment with hydration and without hydration was evaluated and compared ...
Suresh, Minu   +3 more
openaire   +2 more sources

The Effect of Two Bulk-Fill Resin Composites on Fracture Resistance of Endodontically Treated Teeth

open access: yesCumhuriyet Dental Journal, 2019
Objectives: The aim of this study was to compare the effect of two commercially available bulk-fill restorative materials on the fracture resistance of endodontically treated human molar teeth. Materials and methods: A total of 44 mandibular third molar
Öznur Güçlüer, Özlem Üstün
doaj   +1 more source

Fracture toughness and crack-resistance curve behavior in metallic glass-matrix composites [PDF]

open access: yes, 2009
Nonlinear-elastic fracture mechanics methods are used to assess the fracture toughness of bulk metallic glass (BMG) composites; results are compared with similar measurements for other monolithic and composite BMG alloys.
Hofmann, D. C.   +5 more
core   +2 more sources

Toughening materials: enhancing resistance to fracture [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2021
It has been said that ‘God invented plasticity, but the Devil invented fracture!’ Both mechanisms represent the two prime modes of structural failure, respectively, plastic collapse and the rupture/breaking of a component, but the concept of developing materials with enhanced resistance to fracture can be difficult.
openaire   +4 more sources

Fracture resistance of different implant supported ceramic abutment/crown systems

open access: yesEuropean Oral Research, 2019
Purpose The purpose of this study was to investigate the fracture resistance and failure modes of different non-aged and aged abutment/crown systems. Materials and Methods One hundred dental implants (diameter 4.3 mm and length 11.5 mm) were restored ...
Cemal Aydın   +3 more
doaj   +1 more source

Fracture resistance of endodontically treated teeth, restored with two post-core systems in different post space diameters (in vitro study)

open access: yesBMC Oral Health, 2023
Background Fracture resistance of post-core restoration depends on the design of the post, post diameter, post length, the type of adhesive cement used along with material of the core.
Kholoud B. Saad   +2 more
doaj   +1 more source

Effect of thermomechanical loading on fracture resistance and failure mode of new pressable zirconia-reinforced lithium disilicate onlay restoration [PDF]

open access: yesJournal of Dental Research, Dental Clinics, Dental Prospects
Background. Insufficient information exists regarding the fracture resistance and failure pattern of newly developed zirconia-reinforced lithium disilicate (ZL, Vita Ambria) onlays.
Walid A. Abdelhady   +2 more
doaj   +1 more source

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