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Mechanical properties and microstructures of glass-ionomer cements.
OBJECTIVE The objective of this study was to determine the flexural strength (FS), compressive strength (CS), diametral tensile strength (DTS), Knoop hardness (KHN) and wear resistance of tenExpand
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An initial investigation of the bending and torsional properties of Nitinol root canal files.
Root canal files in size #15 and triagular cross-sections were fabricated from 0.020-inch diameter arch wires of Nitinol, a nickel-titanium orthodontic alloy with a very low modulus of elasticity. AExpand
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Calculated elastic constants for stress problems associated with semiconductor devices
Theoretical estimates or experimental determinations of stress fields associated with semiconductor devices are generally simplified with the aid of two elastic constants, Young's modulus E andExpand
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Internal fit evaluation of crowns prepared using a new dental crown fabrication technique: laser-sintered Co-Cr crowns.
STATEMENT OF PROBLEM Difficulties encountered during casting of base metal dental alloys limit their use. Application of these alloys might be enhanced if new techniques are used. PURPOSE TheExpand
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Comparison of the bond strength of laser-sintered and cast base metal dental alloys to porcelain.
OBJECTIVE The purpose of this study was to compare shear bond strengths of cast Ni-Cr and Co-Cr alloys and the laser-sintered Co-Cr alloy to dental porcelain. METHODS Dental porcelain was appliedExpand
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The inappropriateness of conventional orthodontic bond strength assessment protocols.
TLDR
A classification of bond strength studies is proposed with the testing environment (in vivo, in vitro, and ex vivo), loading mode (shear, tensile, and torsion), and bonding substrate (enamel, restorative, and prosthetic materials). Expand
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Metallurgical characterization of a new nickel-titanium wire for rotary endodontic instruments.
INTRODUCTION A novel thermomechanical processing procedure has been developed that yields a superelastic (SE) nickel-titanium (NiTi) wire (M-Wire) that laboratory testing shows has improvedExpand
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SEM observations of nickel-titanium rotary endodontic instruments that fractured during clinical Use.
Numerous discarded ProFile GT, ProFile, and ProTaper nickel-titanium rotary instruments obtained from two graduate endodontic clinics were examined by scanning electron microscopy. These instrumentsExpand
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Differential scanning calorimetry (DSC) analyses of superelastic and nonsuperelastic nickel-titanium orthodontic wires.
The purpose of this study was to determine the transformation temperatures for the austenitic, martensitic, and rhombohedral (R) structure phases in representative as-received commercial nitinolExpand
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A three-dimensional finite element stress analysis of angled abutments for an implant placed in the anterior maxilla.
PURPOSE A three-dimensional mathematical model of the maxilla was developed that was used to analyze the stresses and strains produced by an abutment system capable of three abutment angulations. Expand
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