Results 51 to 60 of about 2,304,365 (234)
EFFECT OF TWO DIFFERENT HEAT-TREATED MINIMALLY INVASIVE NICKELـTITANIUM ROTARY FILE SYSTEMS ON ROOT FRACTURE RESISTANCE (AN IN VITRO STUDY) [PDF]
Alexandria Dental JournalBackground: NickelـTitanium rotary files can induce dentinal cracks on the root canal walls and over time functional load can develop and cause vertical root fracture.Aim: To evaluate the vertical root fracture (VRF) resistance of endodontically treated ...
Mai Ibrahim +2 more
doaj +1 more source
Clinical and Experimental Dental Research, 2022 Objectives Root canal preparation can lead to cracks on the roots by creating stresses on the root canal walls, which decreases the fracture resistance of the tooth. The present study compared the fracture resistance of the teeth prepared by the ProTaper
Amin Salem Milani +4 more
doaj +1 more source
Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials
Advanced Engineering Materials, EarlyView.Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley +1 more source
Эндодонтия Today, 2020 A vertical fracture of the tooth root, which is not diagnosed in time, may lead to periodontitis. On the other hand, if the root fracture is diagnosed, whereas in fact it is not, then the patient will remove the tooth on the basis of an error in the ...
doaj +1 more source
Buoyancy-driven crack propagation: the limit of large fracture toughness [PDF]
, 2007 We study steady vertical propagation of a crack filled with buoyant viscous fluid through an elastic solid with large effective fracture toughness. For a crack fed by a constant flux Q, a non-dimensional fracture toughness K=Kc/(3μQm3/2)1/4 describes the
Roper, S.M. +3 more
core +1 more source
Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy
Advanced Engineering Materials, EarlyView.Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang +6 more
wiley +1 more source
, 2011 Aim To report two cases of palatal root fracture in maxillary molars that were successfully managed in the short term by root canal treatment and root amputation. Summary In the first case, a 48-year-old woman with bony destruction and a deep periodontal
林秋君;蔡宜玲;李偉明;林俊彬;鄭景暉 +1 more
core +1 more source
Diagnostic Value of Cone-Beam Computed Tomography and Periapical Radiography In Detection of Vertical Root Fracture [PDF]
, 2015 Introduction: Vertical root fracture (VRF) is the longitudinal fracture of the root in endodontically treated teeth. Considering the limitations of two-dimensional radiographic images in detection of VRF and introduction of cone-beam computed tomography (
Ezzodini Ardakani, Fatemeh +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz +4 more
wiley +1 more source
Frontiers in Dentistry, 2022 Acute traumatic injuries to the maxillary incisors may lead to a crown-root fracture. If the fracture is left untreated, the fracture line will propagate and extend apically, resulting in microbial contamination of the attachment apparatus and ...
Soheil Niavarzi +3 more
doaj