Results 51 to 60 of about 3,336 (210)

A Comparative Evaluation of the Centering Ability and Canal Transportation of Simulated S-Shaped Canals Instrumented with Different Nickel –Titanium Rotary Systems

Journal of Baghdad College of Dentistry, 2016
Background: The purpose of this study was to evaluate and compare centering ability and canal transportation of simulated S-shaped canals instrumented with four different types of rotary nickel-titanium systems.
Sura A Jaber, Zainab M Abdul-Ameer
doaj   +1 more source

The ability of Reciproc instruments to reach full working length without glide path preparation: a clinical retrospective study [PDF]

PeerJ, 2017
Background Reciproc instruments are the only contemporary root canal instruments where glide path preparation is no longer strictly demanded by the manufacturer.
Andreas Bartols, Bernt-Peter Robra, Winfried Walther   +2 more
doaj   +2 more sources

The Principle of Reciprocity

Journal of Magnetic Resonance, 2011
The circumstances surrounding the realisation that NMR signal reception could be quantified in a simple fundamental manner using Lorentz's Principle of Reciprocity are described. The poor signal-to-noise ratio of the first European superconducting magnet is identified as a major motivating factor, together with the author's need to understand phenomena
openaire   +3 more sources

Mechanical and Metallurgical Evaluation of Four Rotary Nickel‐Titanium File Systems: A Multimethod Study

International Endodontic Journal, EarlyView.
ABSTRACT Aim To compare four rotary nickel‐titanium (NiTi) file systems (Endostar E3 Azure, Endostar E3, VDW.ROTATE, and Mtwo) using a multimethod approach to evaluate their mechanical and metallurgical properties. Materials and Methods Endostar E3 Azure, Endostar E3, VDW.ROTATE, and Mtwo (all size 25/0.06 with an S‐shaped cross‐section; 52 instruments
Doğuş Bayraktar, Uğur İnan
wiley   +1 more source

Investigation of the Effects of Root Canal Filling Materials and Techniques on Residual Material After Retreatment: an in Vitro Comparative Evaluation

Current Research in Dental Sciences
Objective: The aim of this study was to compare the removal of gutta percha and root canal sealer after retreatment in teeth obturated with two different root canal sealer and two different placement techniques.Methods: Forty-eight extracted maxillary ...
Sevda Tok, Ahmet Çetinkaya, Leyla Ayranci   +2 more
doaj   +1 more source

Evaluation of foraminal transportation during foraminal enlargement with different instrumentation systems

Brazilian Journal of Oral Sciences, 2014
Aim: To evaluate the foraminal transportation during foraminal enlargement after manual instrumentation with stainless steel files, preparation with the Mtwo system and Reciproc R25 file.
Diogo Silva, Aline Cristine Gomes, Juliana Melo da Silva, Aline de Almeida Neves, Alexandre Augusto Zaia, Emmanuel João Nogueira Leal da Silva   +5 more
doaj   +1 more source

Outcome of Calcium Silicate Sealer‐Based Obturation in Root Canal Retreatment: A CBCT‐Based Prospective Cohort Study

International Endodontic Journal, EarlyView.
ABSTRACT Background Calcium silicate sealers (CSS) have become the dominant approach to root canal obturation in many specialist practices, yet evidence on their performance in nonsurgical retreatment is sparse and CBCT‐based assessment remains uncommon.
Ahmad Aldowaisan, Fahad Alzoubi, Mona Alenezi, Saad Alqahtani, Samhan Alajmi, Faisal Amir, Francesco Mannocci   +6 more
wiley   +1 more source

Comparison of Cyclic Fatigue Resistance of Heat-Treated Nickel-Titanium Reciprocating Instruments at the Intracanal Temperature

Balkan Journal of Dental Medicine, 2021
Background/Aim: The aim of the present study was to compare the cyclic fatigue resistance of NiTi files running with reciprocal motion and having different characteristics (RPC Blue, WOG, EndoArt Wise Reciproc Gold, EndoArt Wise Reciproc Blue) at the ...
Keskin Neslihan Büşra, Güneç Gürkan
doaj   +1 more source

Three‐Dimensional Segmentation of Dens Invaginatus: A Case Series Exploring the CARES Classification for Anatomy‐Driven Clinical Decision‐Making

International Endodontic Journal, EarlyView.
ABSTRACT Introduction Dens invaginatus (DI) exhibits substantial 3‐dimensional anatomical variability that may not be fully represented by conventional classification systems. The recently introduced CARES classification provides a CBCT‐based framework incorporating communication, cross‐sectional anatomy, root formation, vertical extent, and ...
Angelo José Sócrates Torres‐Carrillo, Grasielle de Camargo Gonçalves Alcebiades, Antonio Miranda Cruz‐Filho, Ricardo Gariba Silva, Manoel Damião Sousa‐Neto, Jardel Francisco Mazzi‐Chaves, Fabiane Carneiro Lopes‐Olhê, Igor Bassi Ferreira Petean   +7 more
wiley   +1 more source

The (Un)deserving Parent: Exploring Parental Argumentation and Sole‐Custody Decisions in Swedish Courts

Social Policy &Administration, Volume 60, Issue 7, Page 1225-1246, December 2026.
ABSTRACT Across the Western world, joint legal and physical custody is increasingly becoming the default post‐separation arrangement. While family policy and law encourage such arrangements, they may not suit every situation. In child‐custody court disputes, courts must consider whether sole legal custody is the best alternative for the child in each ...
Johanna Finnström, Ann‐Zofie Duvander
wiley   +1 more source