Results 11 to 20 of about 22,010 (253)

EFFICACY OF PROTAPER NEXT AND PROTAPER UNIVERSAL RETREATMENT SYSTEMS IN REMOVING GUTTA-PERCHA IN CURVED ROOT CANALS DURING ROOT CANAL RETREATMENT

open access: yesJournal of Istanbul University Faculty of Dentistry, 2017
Purpose: The aim of this study was to compare the cleanliness of root canal walls after retreatment using ProTaper Next (PTN), ProTaper Universal Retreatment (PTR) nickel-titanium (NiTi) systems and Hedström hand files in curved mesial canals of ...
Taha ÖZYÜREK   +1 more
doaj   +2 more sources

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

open access: yesBrazilian Journal of Oral Sciences, 2015
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 ...
Mário Tanomaru-Filho   +3 more
doaj   +3 more sources

Quality of root canal fillings using three gutta-percha obturation techniques

open access: yesRestorative Dentistry & Endodontics, 2016
Objectives The goal of this study was to compare the density of gutta-percha root fillings obturated with the following techniques: cold lateral (CL) compaction, ultrasonic lateral (UL) compaction, and warm vertical (WV) compaction.
Edith Siu Shan Ho   +2 more
doaj   +2 more sources

Comparative study of the effect on apical sealability with different levels of remaining gutta-percha in teeth prepared to receive posts: An in vitro study

open access: goldContemporary Clinical Dentistry, 2018
Objective: The objective of this study is to compare the apical sealability of mineral trioxide aggregate (MTA) Fillapex and Endosequence BC sealer at three different lengths of remaining gutta-percha after postspace preparation. Materials and Methods: A
Bobbin Gill   +5 more
openalex   +2 more sources

Push-Out Bond Strength, Characterization, and Ion Release of Premixed and Powder-Liquid Bioceramic Sealers with or without Gutta-Percha

open access: yesScanning, 2021
Objective To evaluate the push-out bond strength of premixed and powder-liquid bioceramic sealers with or without gutta-percha (GP) cone. Materials and Methods Radicular dentin samples were prepared from 80 single-rooted human teeth.
Cristina Retana-Lobo   +5 more
semanticscholar   +1 more source

Extraction of High-Purity Native State Gutta-Percha from Enzymatic Hydrolyzed Eucommia ulmoides Pericarps by Ultrasound Treatment and Surfactant Aqueous Phase Dispersion

open access: yesAgriculture, 2022
Herein, a method of ultrasound treatment combined with surfactant aqueous phase dispersion was proposed for the extraction of high-purity gutta-percha in its native state from enzymatic hydrolyzed Eucommia ulmoides pericarps.
Qili Shi   +4 more
doaj   +1 more source

Comparison of the efficacy of laser-activated and ultrasonic-activated techniques for the removal of tricalcium silicate-based sealers and gutta-percha in root canal retreatment: a microtomography and scanning electron microscopy study

open access: yesBMC Oral Health, 2021
Background Tricalcium silicate-based sealers have been usually indicated for the single-cone technique and result in more residual filling materials in root canal retreatment.
Ruiqi Yang   +5 more
semanticscholar   +1 more source

Ultrasonic Microwave-Assisted Micelle Combined with Fungal Pretreatment of Eucommia ulmoides Leaves Significantly Improved the Extraction Efficiency of Total Flavonoids and Gutta-Percha

open access: yesFoods, 2021
A biological pretreatment of Eucommia ulmoides leaf biomass was carried out. Above all, the total flavonoids were isolated from Eucommia ulmoides leaves by the treatment of alkaline solution of sodium dodecyl benzene sulfonate combined with ultrasonic ...
Mingfang Wu   +4 more
semanticscholar   +1 more source

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