Results 21 to 30 of about 19,738 (201)

Antimicrobial efficacy of acacia Nilotica (Babul) extract and its effectiveness in disinfecting gutta percha cones - An in vitro study

open access: yesIndian Journal of Dental Research, 2021
Background: Gutta-percha cones used directly from the manufacturer's sealed packs harbour micro-organisms. During clinical use, the chances of contamination of gutta-percha increases.
Dolly R Jagyasi   +3 more
doaj   +1 more source

Aging of dental gutta-percha [PDF]

open access: yes, 1981
Thesis (M.Sc.D.)--Boston University, Henry M. Goldman School of Graduate Dentistry. Dept. of Endodontics, 1981.Includes bibliography: leaves 287-302.Gutta-percha is the natural form of trans-1, 4-polyisoprene from trees belonging to the genus Dichopsis ...
Yu, Donald C.
core   +1 more source

Comparative evaluation of sealing ability of gutta percha and resilon as root canal filling materials- a systematic review

open access: yesJournal of Oral Biology and Craniofacial Research, 2020
This systematic review aims to comparatively evaluate the sealing ability gutta-percha and resilon as root canal filling materials. A Medline search was conducted to identify in-vitro studies published between October 01, 2004 and October 01, 2019 ...
Pragya Pandey   +5 more
doaj   +1 more source

The Long Trajectory of Rubber Physics: 3500+ Years and Counting

open access: yesJournal of Polymer Science, EarlyView.
Natural rubber's trajectory is traced from Mesoamerican use of Castilla elastica through vulcanization and the pneumatic tire to macromolecular physics and modern solid‐state refrigeration. Illustrations of C. elastica and an H. brasiliensis plantation frame the historical progression from indigenous material, then industrial crop and on to advanced ...
Gregory B. McKenna
wiley   +1 more source

Eficácia do hipoclorito de sódio com surfactante na desinfecção de cones de guta-percha e análise de alterações superficiais em MEV [PDF]

open access: yes, 2015
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.A desinfecção do sistema de canais radiculares é um dos objetivos a ser alcançado na terapia endodôntica e, para tal, é importante que todas as etapas do ...
Vitali, Filipe Colombo
core  

Influence of Delivery Method of Hydraulic Calcium Silicate Cement‐Based Sealer on Void Formation: A Micro‐Computed Tomography Study

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT The aim of this study was to compare three delivery methods of a hydraulic calcium silicate cement‐based sealer by quantifying voids using the single‐cone technique. Forty‐eight human mandibular molars were instrumented and scanned using micro‐computed tomography.
Yasmina Andreani   +4 more
wiley   +1 more source

Thermoplasticity of microseal and TC gutta-percha (Tanaka de Castro) and three gutta-percha cones [PDF]

open access: yes, 2010
Aim: The aim of this study was to assess the thermoplasticity of materials used in root canal filling. Methods: Specimens with standardized dimensions were fabricated using Tanari, Roeko and Activ Point gutta-percha cones, as well as Microseal and TC ...
Tanomaru-Filho, Mário   +3 more
core   +1 more source

Detection of Vertical Root Fractures Using Cone-Beam Computed Tomography in the Presence and Absence of Gutta-Percha

open access: yesThe Scientific World Journal, 2018
Background. Vertical root fractures (VRFs) can significantly reduce dental prognosis. Cone-beam computed tomography (CBCT) offers better visualization of VRF than conventional radiography.
Ehsan Hekmatian   +3 more
doaj   +1 more source

Effect of Kinematics and Speed on Filling Material Removal, Canal Transportation, and Apical Extrusion During Retreatment of Curved Canals

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This study evaluated the effects of kinematics (reciprocating vs. continuous rotation) and rotational speed (350 vs. 1200 rpm) on filling removal, canal transportation, and apical extrusion during retreatment of curved root canals. Vertucci type II mesial roots of mandibular molars were prepared, filled, and scanned by micro‐computed ...
Jenny Guerrero   +7 more
wiley   +1 more source

Avaliação da infiltração cervico-apical, par meio de microorganismos, atraves de canais radiculares obturados por tecnicas da guta-percha termoplastificada e condensação lateral : estudo in vitro [PDF]

open access: yes, 1998
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciencias da SaudeEste estudo avaliou in vitro o selamento, no sentido cérvico-apical, de canais radiculares obturados pela técnica de condensação lateral de cones de guta-percha ...
Lucena, Marcia Gonçalves
core  

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