Results 1 to 10 of about 29,843 (305)
Journal of Pharmacy and Bioallied Sciences, 2021 Aim: The purpose of this study is to evaluate and compare the incidence of dentinal defects after root canal shaping using rotary nickel-titanium (Ni-Ti) instruments (ProTaper Gold [PTG] and ProTaper Next [PTN]) and reciprocating instrument (WaveOne Gold
Sarin Koroth +5 more
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Frontiers in Materials, 2021 This work investigates the correlation between TiN inclusions and microstructural properties of HARDOX 450 steel using optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and electron backscattered ...
Zhongyang Wang +3 more
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Bond strength of composite materials after internal teeth bleaching using 30% carbamide peroxide [PDF]
Stomatološki glasnik Srbije, 2014 Introduction. Bond between composite materials and bleached teeth depends on the change of micro-morphological structure of enamel and dentin after the application of bleaching agent.
Knežević Nataša +4 more
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Crystals, 2022 In this paper, the microstructural damage evolution of a steel with a ferrite–pearlite microstructure (C45E) was investigated during the process of cold upsetting.
Milija Kraišnik +5 more
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Process Condition Diagram Predicting Onset of Microdefects and Fracture in Cold Bar Drawing
Metals, 2021 This paper presents a process condition diagram (PCD) that not only identifies conditions under which materials fracture during bar drawing, but also infers the presence or absence of microdefects such as microvoids and microcracks in the drawn material ...
Yong-Hoon Roh +4 more
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Does Low-Taper Root Canal Shaping Decrease the Risk of Root Fracture? A Systematic Review
Dentistry Journal, 2022 Minimal root-canal preparation has been suggested to reduce the risk of root fracture, but as a result, satisfactory cleaning and shaping do not take place.
Francesco Puleio +4 more
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Endodontology, 2021 Introduction: The aim of this in vitro study is to evaluate and compare the root-end cavities for the presence of microcracks after cavity preparation using two different ultrasonic (US) retrotips and conventional bur. Materials and Method: Thirty single-
Dilshad Kersi Mandviwala +2 more
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Experimental investigation on the mechanical behavior�
Fracture and Structural Integrity, 2022 urrently, the reinforcement of ordinary concrete with synthetic fibers poses ecological problems because the manufacturing process of these products is very polluting. Plant fiber composites are a new challenge for environmental protection.
Tidjani Messas +3 more
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Sensors, 2022 This paper represents a first attempt to study the feasibility of using shear wave (SW) ultrasonic probes as pump-wave sources in concrete microcrack detection and monitoring by Nonlinear Ultrasonic Coda Wave Interferometry (NCWI). The premise behind our
Belfor A. Galaz Donoso +2 more
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Poultry Science, 2006 An experimental program of mechanical testing has shown that microcracks initiate in hens' eggs at loads less than that necessary to cause total structural failure. In contact loading, computational modeling and numerical analysis show that very high stress levels develop on the inner surface of the eggshell as it conforms to a hard contact surface ...
M M, Bain +3 more
openaire +2 more sources