Results 51 to 60 of about 415 (135)

Shaping Performance of XP4 versus ProTaper Next in C‐Shaped Canals: A Micro‐CT Study of 3D‐Printed Mandibular Second Molar Replicas

open access: yesClinical and Experimental Dental Research, Volume 12, Issue 4, August 2026.
ABSTRACT Introduction This micro‐computed tomography (micro‐CT) study aimed to evaluate the shaping ability of two nickel–titanium (NiTi) rotary systems—XP4 and ProTaper Next (PTN)—in 3D‐printed replicas of C‐shaped canals. Methods Two extracted mandibular second molars with C‐shaped root canals—one continuous (Melton's Category I) and one ...
Zaidao Xiong   +6 more
wiley   +1 more source

Comparison of Shaping Ability of 10 Rotary and Reciprocating Systems: an In Vitro Study with AutoCAD

open access: yesActa Stomatologica Croatica, 2017
Objective: The aim of this study was to compare the cutting are, root canal anatomy preservation and non-instrumented areas of F360®, F6-SkyTaper®, Hyflex-EDM®, iRACE®, Neoniti®, O.Shape®, P.Next®, Reciproc®, Revo-S® and Wave-One-Gold® size 25 files ...
Jorge Rubio   +2 more
doaj   +1 more source

Comparison of the shaping ability of novel thermally treated reciprocating instruments [PDF]

open access: yesRestorative Dentistry & Endodontics, 2018
ObjectivesThe present study aimed to evaluate the shaping ability of 2 thermally treated nickel-titanium reciprocating systems in simulated curved canals.Materials and MethodsForty simulated canals were prepared to apical size 25 using Reciproc Blue R25 (
Cangül Keskin   +2 more
doaj   +1 more source

Enterococcus faecalis and Endodontic Treatment Failure: A Qualitative Systematic Review of Its Role and Elimination Strategies

open access: yesAustralian Endodontic Journal, Volume 52, Issue 2, Page 585-605, August 2026.
ABSTRACT The aim of this study was to synthesize evidence on the influence of Enterococcus faecalis on endodontic treatment failure and strategies for its elimination. This study followed the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) guidelines and was registered in PROSPERO (CRD420251022741).
Francine Santos Fernandes de Lima   +1 more
wiley   +1 more source

Reciprocity via Reciprocants

open access: yesThe American Mathematical Monthly
10 pages.
openaire   +2 more sources

Bracing and reciprocation [PDF]

open access: yesBritish Dental Journal, 2001
In this part, we will discuss
J C, Davenport   +5 more
openaire   +2 more sources

Pollinator efficiency, rather than bee decline, explains a shift to hummingbird pollination in tropical montane forests

open access: yesNew Phytologist, Volume 251, Issue 4, Page 2237-2247, August 2026.
Hummingbird pollination is a hallmark of American plant diversity and has long been thought to evolve in tropical mountains due to declining bee activity. Using sister species of Costus specialized on bees (C. kuntzei) and hummingbirds (C. wilsonii), we show that this shift is not driven by reduced bee visitation with elevation, but by greater ...
Pedro Juárez   +7 more
wiley   +1 more source

In vitro investigation of the cleaning efficacy, shaping ability, preparation time and file deformation of continuous rotary, reciprocating rotary and manual instrumentations in primary molars

open access: yesJournal of Dental Research, Dental Clinics, Dental Prospects, 2016
Background. Efficient canal preparation is the key to successful root canal treatment. This study aimed to assess the cleaning and shaping ability, preparation time and file deformation of rotary, reciprocating and manual instrumentation in canal ...
Nahid Ramazani   +4 more
doaj   +1 more source

A Novel Laboratorial Approach to Evaluate Bacterial Microleakage of Endodontic Sealers

open access: yesCurrent Protocols, Volume 6, Issue 7, July 2026.
Abstract To avoid failure of endodontic treatment, it is important to properly seal the root canals after chemomechanical preparation in order to avoid microleakage. Typically, sealing involves the use of gutta‐percha and sealing cement, the latter of which adheres to the dentin and fills the spaces between the gutta‐percha and the dentin walls ...
Emannuel Fonseca Thomé da Silva Monteiro   +11 more
wiley   +1 more source

Root canal retreatment using Reciproc and ProTaper universal systems. Comparative evaluation [PDF]

open access: yesRomanian Journal of Stomatology, 2019
The aim of this study was to compare the efficacy of two rotary retreatment systems in removing remnants of filling materials during root canal retreatment. Materials and methods.
Sînziana Adina Scărlătescu   +3 more
doaj   +1 more source

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