Results 41 to 50 of about 826,321 (147)

Root Dentine Strain Generation during Root Canal Instrumentation with Rotation and Reciprocation Motions

Polytechnic Journal, 2020
The aim of the study is to measure and compare strain generated on root dentine surface by two different instrumentation motions. Thirty extracted single canal premolars were used in this study which randomly was divided into two groups, one group was ...
Bnar O. Hamafaraj, Raed F. Salman
doaj   +1 more source

Changes in the Location of the Second Mesiobuccal Canal Orifice After Canal Preparation in Maxillary First Molars

Australian Endodontic Journal, EarlyView.
ABSTRACT This study evaluated angular and linear positional changes of the second mesiobuccal (MB2) canal orifice in maxillary first molars and proposed a guideline for its localization. Twenty‐eight extracted maxillary first molars with four canals were analysed. After access cavity preparation, all canals except MB2 were instrumented. The initial and
Hyoung‐Hoon Jo, Ara Cho, Su‐Min Lee, Bekir Karabucak, Ho‐Keel Hwang   +4 more
wiley   +1 more source

Evaluación de la resistencia a la fatiga cíclica de diferentes instrumentos rotatorios: Protaper Gold, Protaper Next, Hyflex CM, Reciproc, Wave One y Wave One Gold. [PDF]

, 2016
Introducción: En endodoncia, la instrumentación, juega un rol importante para el cumplimiento de los objetivos del tratamiento; los instrumentos NiTi pueden fracturarse dentro del conducto radicular, teniendo como consecuencia una posible reinfección o ...
Calderón Gutiérrez, Ana Karen
core   +1 more source

Mechanical Properties of NiTi Rotary Files Fabricated through Gold-Wire, CM-Wire, T-Wire, and R-Phase Heat Treatment

Applied Sciences, 2023
Although nickel–titanium (NiTi) rotary files are invaluable tools in dentistry, the relationship between their properties and performance has not been elucidated.
Soram Oh, Tae-Hwan Kim, Seok Woo Chang
doaj   +1 more source

Clinical Outcome of Non‐Surgical Endodontic Treatment Performed by Undergraduate Dental Students: A Retrospective Observational Cohort Study

International Endodontic Journal, EarlyView.
ABSTRACT Aim To evaluate the outcome of pulpectomy, root canal treatment (RCT) and orthograde retreatment in permanent teeth performed by undergraduate dental students and to assess the influence of various variables. Methodology Electronic dental health records at the Department of Odontology, University of Copenhagen, Denmark were analysed covering ...
S. Ramezanzade, A. Bakhshandeh, B. Ibragimov, H. Fransson, T. Dascalu, A. Alonso, V. Anastasopoulou, EndoReCo, L. Bjørndal, V. S. Dawson, H. Fransson, F. Frisk, T. Kvist, M. Markvart, F. Mota de Almeida, M. Pigg, D. Sebring, E. Wigsten, L. Bjørndal   +18 more
wiley   +1 more source

Long‐Term Clinical and Radiographic Outcomes of Large Periapical Lesions Managed by Non‐Surgical and Surgical Endodontic Treatment: A Case Series

Clinical Case Reports, Volume 14, Issue 10, October 2026.
ABSTRACT The management of large periapical lesions is challenging, as lesion size alone does not predict treatment outcome or mandate surgery. This case series presents three large periapical lesions with 4‐ to 12‐year follow‐up, illustrating different therapeutic pathways.
Mohsen Aminsobhani, Maryam Babaahmadi, Razieh Amiri, Maryam Habibzadeh, Nazanin Kamali   +4 more
wiley   +1 more source

Evaluation of the efficacy of Protaper, HERO SHAPER GOLD, ProTaper Universal retreatment, and R-Endo, for removing gutta-percha and AH plus sealer from root canals

The purpose of the present study is to evaluate the efficacy of four different rotary NiTi files ProTaper files, HERO SHAPER GOLD files, ProTaper Universal retreatment files, and R-Endo files to remove GP and sealer from root canals with or without the ...
Upendranatha Reddy, Datta Kiran, Sujayeendranatha Reddy, Nagalakshmi Reddy, Gopi Reddy, Anusha Y.   +5 more
core   +4 more sources

A Comparison of Preparation Times between Manual, Rotary, and Reciprocating Files in Primary Molar Pulpectomy

Indian Journal of Dental Research
Aim: To compare preparation times using manual, rotary, and reciprocating files during pulpectomy treatment of primary molars. Settings and Design: This study was an in vitro, randomised, cross-sectional study.
Ilana Middleton, Martin Vorster, Peet J. van der Vyver   +2 more
doaj   +1 more source

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

Clinical 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, Lu Wang, Wenyuan Zhou, Zhongyang Shan, Chao Liu, Yongchun Gu, Jia Li   +6 more
wiley   +1 more source

ProTaper Gold® versus WaveOne Gold®: uma comparação de dois sistemas Gold [PDF]

, 2021
A fratura dos instrumentos de Níquel Titânio continua sendo um problema para os endodontistas. Os fabricantes têm como desafio melhorar as propriedades mecânicas das ligas com o propósito de aumentar a resistência à fadiga cíclica reduzindo o risco de ...
Castelo Branco, Ana Cristina Barbosa
core   +1 more source