Results 91 to 100 of about 16,616 (239)

Effects of Access Cavity Design on the Shaping Ability and Dentine Thickness Following Canal Preparation Using XP‐Endo Shaper or Reciproc

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This study compared the shaping ability and remaining dentine thickness in mandibular molars prepared with traditional (TradAC) or ultraconservative (UltraAC) access cavities using Reciproc or XP‐endo Shaper instruments. Thirty‐two molars were scanned with micro‐CT before and after preparation to assess canal surface, volume, untouched walls ...
Renata Muniz Alvez Cruz   +6 more
wiley   +1 more source

Nickel–titanium alloy porous scaffolds based on a dominant cellular structure manufactured by laser powder bed fusion have satisfactory osteogenic efficacy

open access: yesMaterials Today Bio
Nickel–titanium (NiTi) alloy is a widely utilized medical shape memory alloy (SMA) known for its excellent shape memory effect and superelasticity. Here, laser powder bed fusion (LPBF) technology was employed to fabricate a porous NiTi alloy scaffold ...
Jiaming Lin   +12 more
doaj   +1 more source

Evaluation of the performance of ChatGPT‐4 and ChatGPT‐4o as a learning tool in endodontics

open access: yesInternational Endodontic Journal, EarlyView.
Abstract Aims The aim of this study was to evaluate the accuracy and consistency of responses given by two different versions of Chat Generative Pre‐trained Transformer (ChatGPT), ChatGPT‐4, and ChatGPT‐4o, to multiple‐choice questions prepared from undergraduate endodontic education topics at different times of the day and on different days ...
Esra Arılı Öztürk   +2 more
wiley   +1 more source

Investigations of generic self disassembly using shape memory alloys [PDF]

open access: yes
Industrial recycling is a practice of growing importance while impending `Take Back' European legislation and economic pressures are increasing. Landfill sites are becoming exhausted and the industry could benefit from a novel approach to recycling pre ...
Billett, EH   +3 more
core   +1 more source

Factors Associated With the Citation Impact of Evidence Synthesis Reviews in Endodontics: A Bibliometric Analysis

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Background Systematic reviews are essential for evidence‐based decision‐making in endodontics, and their number has grown substantially in recent years. However, little is known about the publication patterns, methodological features and citation impact of these studies.
Rafaella Rodrigues da Gama   +3 more
wiley   +1 more source

A Visualized Microstructure Evolution Model Integrating an Analytical Cutting Model with a Cellular Automaton Method during NiTi Smart Alloy Machining

open access: yesCrystals
In this study, a visualized microstructure evolution model for the primary shear zone during NiTi smart alloy machining was established by integrating an analytical cutting model with a cellular automaton method.
Jiaqi Wang   +9 more
doaj   +1 more source

Hyflex CM and EDM from Shape Memory to Control Memory.

open access: yesErbil Dental Journal, 2023
The new era in endodontics has been established with the introduction of nickel titanium (NiTi) alloys, and later on the automation of mechanical preparation. By changing the phase transformation temperatures of NiTi alloy, the manufacturers alter the
Jamal A. Abu Al‑Timan   +2 more
doaj  

Adhesive and TIG Joining Nickel-Titanium to 304 Stainless Steel [PDF]

open access: yes, 2012
Nickel-titanium (NiTi) contains a unique set of properties which make it a desirable candidate for aeronautic applications. NiTi’s most useful characteristic comes from being a Shape Memory Alloy (SMA). With the proper thermo-mechanical training regimen,
Riggs, Mark
core  

Supportive periodontal care during active orthodontic therapy in patients with history of stage IV periodontitis: A narrative review

open access: yesPeriodontology 2000, EarlyView.
Abstract The present narrative review aims to summarize the existing literature on recommendations for supportive periodontal care (SPC) in patients undergoing combined periodontal–orthodontic treatment. It outlines a comprehensive step‐4 treatment sequence in patients diagnosed with stage IV periodontitis and concurrent orthodontic problems.
Alexandra Stähli   +6 more
wiley   +1 more source

Effects of Mechanical Alloying on microstructure and microhardness of Nanocrystalline Ni–50at.% Ti Shape Memory Alloy’ [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2012
In this work, nanostructured NiTi shape memory alloy with equal atomic percentage was produced through mechanical alloying. The result exhibited that after 60 h of mechanical alloying of high purity elemental powder mixtures of nickel and titanium by a ...
Morteza Ghadimi, Ali Shokuhfar
doaj  

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