Journal ArticleDOI
Cyclic fatigue testing of nickel-titanium endodontic instruments.
TLDR
This study supports engineering concepts of cyclic fatigue failure and suggests that standardized fatigue tests of nickel-titanium rotary instruments should include dynamic operation in a flexed state and the effect of the radius of curvature as an independent variable should be considered when evaluating studies of root canal instrumentation.About:
This article is published in Journal of Endodontics.The article was published on 1997-02-01. It has received 971 citations till now. The article focuses on the topics: Curvature & Radius of curvature (optics).read more
Citations
More filters
Journal ArticleDOI
Current Challenges and Concepts in the Preparation of Root Canal Systems: A Review
TL;DR: This review attempts to identify factors that influence shaping outcomes with nickel-titanium rotary instruments, such as preoperative root-canal anatomy and instrument tip design, and implications of various working length definitions and desired apical widths.
Journal ArticleDOI
Defects in Rotary Nickel-Titanium Files After Clinical Use
TL;DR: The results indicated that torsional failure, which may be caused by using too much apical force during instrumentation, occurred more frequently than flexural fatigue, which might result from use in curved canals.
Journal ArticleDOI
Mechanical preparation of root canals: shaping goals, techniques and means
TL;DR: The main problems with the methodology of research relating to root canal preparation are discussed while the remaining section critically reviews current endodontic instruments and shaping techniques.
Journal ArticleDOI
Rotary NiTi instrument fracture and its consequences.
Peter Parashos,Harold H. Messer +1 more
TL;DR: Clinical recommendations concerning prevention and management of fracture of endodontic instruments are derived from an assessment of the literature presented.
Journal ArticleDOI
Current challenges and concepts of the thermomechanical treatment of nickel-titanium instruments.
TL;DR: This review summarizes the metallurgical properties of next-generation NiTi instruments, the impact of thermomechanical treatment on instrument flexibility, and the resistance to cyclic fatigue and torsion.
References
More filters
Book
Pathways of the Pulp
Stephen Cohen,Richard C. Burns +1 more
TL;DR: This chapter discusses Endodontic-Periodontic Interrelationships, Pulp Development, Structure and Function, Pulpal Reaction to Caries and Dental Procedures, and Digital Technologies in Endodonic Practice.
Journal ArticleDOI
A comparison of canal preparations in straight and curved root canals
TL;DR: Extracted human single-rooted permanent teeth were classified according to degree of root curvature and an examination of cross sections revealed that straight canals were much more readily prepared round than were curved canals.
Book
Advanced Fracture Mechanics
TL;DR: This book goes beyond the well developed area of linear elastic fracture mechanics to consider the dynamic and elastic-plastic regimes, and in doing so, extends the subject into a broader range of realistic engineering applications.
Journal ArticleDOI
An initial investigation of the bending and torsional properties of nitinol root canal files
TL;DR: The Nitinol files were found to have two to three times more elastic flexibility in bending and torsion, as well as superior resistance to torsional fracture, compared with size #15 stainless steel files manufactured by the same process.
Book
An Introduction to the Mechanics of Solids
TL;DR: In this article, the authors present a general framework for the analysis of deformable bodies, including bending, deformation, and deformation of a twisted circular shaft with respect to bending.