Results 11 to 20 of about 32,315 (256)

Smear layer in endodontics [PDF]

Stomatološki glasnik Srbije, 2005
Modern methods of root canal cleaning and filing are causing formation of the smear layer on treated surfaces. The aim of this paper was to review clinical aspect of smear layer in endodontics.
Živković Slavoljub, Brkanić Tatjana, Dačić Dragoslav, Opačić Vanja, Pavlović Violeta, Medojević Milica   +5 more
doaj   +1 more source

Classifications of Canal Surfaces with the Gauss Maps in Minkowski 3-Space

Mathematics, 2020
In this work, we study the canal surfaces foliated by pseudo spheres S12 along a Frenet curve in terms of their Gauss maps in Minkowski 3-space. Such kind of surfaces with pointwise 1-type Gauss maps are classified completely.
Jinhua Qian, Xueqian Tian, Xueshan Fu, Young Ho Kim   +3 more
doaj   +1 more source

Scanning Electron Microscopic Evaluation of Root Canal Surfaces Prepared with LightSpeed & Endowave rotary system [PDF]

Journal of Clinical and Diagnostic Research, 2014
Background and Objectives: The purpose of this in vitro study was to evaluate and compare the cleaning efficiency on root canal surfaces prepared with LightSpeed and Endowave rotary instruments.
Hema.B.S, G.S Chandu, Vijayakumar L Shiraguppi   +2 more
doaj   +1 more source

EPI-HYPOCYCLOIDS AND EPI-HYPOCYCLOIDAL CANAL SURFACES

Structural Mechanics of Engineering Constructions and Buildings, 2018
In the article are regarded the curves - epiand hypocycloids, which are formed by the moving of the generating points, linked with the circles of the same radius and which are at the same time outside and inside of the unmoving circle. There is shown the
Vyacheslav N Ivanov
doaj   +1 more source

Pseudomyxoma peritonei involving the canal of Nuck: The added value of magnetic resonance imaging for detection and presurgical planning

Radiology Case Reports, 2022
The canal of Nuck is an abnormal patent pouch of the parietal peritoneum caused by the incomplete obliteration of the processus vaginalis in females. The most common disorders of the canal of Nuck are: hernia, hydrocele and endometriosis.
Carmelo Sofia, MD, Maria Adele Marino, MD, Erica Milone, MD, Antonio Ieni, MD, Alfredo Blandino, MD, Giorgio Ascenti, MD, Antonio Macrì, MD   +6 more
doaj   +1 more source

Shaping Ability, Cyclic Fatigue Resistance and Fractographic Analysis of Hybrid and Reciprocating Nickel Titanium Endodontic Instruments

Metals, 2020
The aim of this study was to investigate the shaping ability and cyclic fatigue resistance of Genius (GN) and WaveOne (WO) nickel-titanium (NiTi) instruments.
Saulius Drukteinis, Vytaute Peciuliene, Ruta Bendinskaite, Vilma Brukiene, Rasmute Maneliene, Egle Nedzinskiene   +5 more
doaj   +1 more source

Geometric Characterizations of Canal Surfaces in Minkowski 3-Space II

Mathematics, 2019
Canal surfaces are defined and divided into nine types in Minkowski 3-space E 1 3 , which are obtained as the envelope of a family of pseudospheres S 1 2 , pseudohyperbolic spheres H 0 2 , or lightlike cones Q 2 , whose ...
Jinhua Qian, Mengfei Su, Xueshan Fu, Seoung Dal Jung   +3 more
doaj   +1 more source

The implicit equation of a canal surface

Journal of Symbolic Computation, 2009
A canal surface is an envelope of a one parameter family of spheres. In this paper we present an efficient algorithm for computing the implicit equation of a canal surface generated by a rational family of spheres. By using Laguerre and Lie geometries, we relate the equation of the canal surface to the equation of a dual variety of a certain curve in 5-
Dohm, Marc, Zube, Severinas
openaire   +3 more sources

Morphological Analyses of Effects of Endodontic Irrigant Solutions Using a Root Canal Model and an Immersion Model

International Journal of Dentistry, 2023
Objective. This study aimed to compare an experimental model simulating clinical root canal irrigation (root canal model) with a conventional experimental model immersing dentin sample to irrigants (immersion model) to evaluate removal of the smear layer
Yuzo Kawanishi, Hazuki Maezono, Tsuyoshi Shimaoka, Takumi Kitatani, Katsuaki Naito, Maki Sotozono, Kittipit Klanliang, Yusuke Takahashi, Mikako Hayashi   +8 more
doaj   +1 more source

Symbolic parametrization of pipe and canal surfaces [PDF]

Proceedings of the 2000 international symposium on Symbolic and algebraic computation, 2000
A canal surface S, generated by a parametrized curve m(t), in R3 is the envelope of the set of spheres with radius r(t) centered at m(t). This concept generalizes the classical offsets (for r(t) = const) of plane curves. In this paper we develop elementary symbolic methods for generating a rational parametrization of canal surfaces generated by ...
Günter Landsmann, Josef Schicho, Franz Winkler 0001, Erik Hillgarter   +3 more
openaire   +1 more source