Results 61 to 70 of about 8,261 (165)

Nonsurgical Endodontic Retreatment of a Large Cyst‐Like Periapical Lesion With Buccal and Palatal Cortical Plate Perforations and Maxillary Sinus Involvement: A 2‐Year CBCT Follow‐Up Case Report

Clinical Case Reports, Volume 14, Issue 3, March 2026.
ABSTRACT Large cyst‐like periapical radiolucencies with cortical perforations are traditionally managed surgically. However, nonsurgical retreatment may be effective when adequate disinfection and seal are achieved. This case report describes the management of a large maxillary periapical lesion involving five endodontically treated teeth (from 21 to ...
Mohamed Ahmed Elsayed, Nawar Naguib Nawar, Mohmed Isaqali Karobari   +2 more
wiley   +1 more source

A Stereomicroscopic Evaluation of Dentinal Cracks at Different Instrumentation Lengths by Using Different Rotary Files (ProTaper Universal, ProTaper Next, and HyFlex CM): An Ex Vivo Study

Scientifica, 2016
Introduction. The aim of the present study was to evaluate the dentinal cracks after root canal preparation with rotary files: Gates Glidden, ProTaper Universal, ProTaper Next, and HyFlex CM at different instrumentation lengths. Methodology.
Fauzia Ashraf, Pushpa Shankarappa, Abhinav Misra, Asheesh Sawhney, Nandamuri Sridevi, Anu Singh   +5 more
doaj   +1 more source

Randomised Controlled Trial on the Additive Effect Between Calcium Hydroxide and Sodium Hypochlorite in an Inter‐Visit Root Canal Dressing

International Endodontic Journal, Volume 59, Issue 3, Page 469-476, March 2026.
ABSTRACT Aim To assess whether there was an additive antimicrobial effect between calcium hydroxide (Ca(OH)2) and sodium hypochlorite (NaOCl) in an inter‐visit root canal dressing. Methodology Patients presenting with a single‐rooted tooth with pulpal necrosis and asymptomatic apical periodontitis were included in this randomised controlled single ...
Nidambur V. Ballal, Namith Rai, Padmaja A. Shenoy, Vibha Acharya, Vinutha R. Bhat, Matthias Zehnder   +5 more
wiley   +1 more source

Torsional fatigue profiles of ProTaper nickel-titanium rotary instruments [PDF]

, 2008
The torsional fatigue profiles of the original ProTaper ® F2, F3 and ProTaper® Universal F2, F3, F4, F5 nickel-titanium rotary instruments were determined using a reversible geared motor assembled according a modification of ANSI/ADA Specification No. 28.
Chan, Gregory M
core  

Evaluation of Apically Extruded Debris During Root Canal Preparation Using ProTaper Ultimate and ProTaper Gold: An Ex Vivo Study

European Endodontic Journal
Objective: To assess the extruded debris apically by the ProTaper Ultimate rotary nickel-titanium files compared to the ProTaper Gold files on preparing the mesiobuccal root canals of mandibular molars.
Madiun Mohamed Alhayki, Bassem Eid, Ranya Elemam, Tarek Elsewify   +3 more
doaj   +1 more source

The Effects of Sodium Dichloroisocyanurate and Calcium Hydroxide as Intracanal Medicaments on Microhardness and Fracture Resistance of Dentin: An In Vitro Study

Clinical and Experimental Dental Research, Volume 12, Issue 1, February 2026.
ABSTRACT Objectives The aim of this study was to evaluate the effect of sodium dicholoroisocyanurate (NaDCC) as intracanal medicament on the dentin microhardness and fracture resistance of teeth compared to calcium hydroxide (CH). Material and Methods Root canals of mandibular premolars (n = 153) were instrumented and randomized into two treatment ...
Fereshte Sobhnamayan, Alireza Adl, Negin Firouzi, Saeed Moravej, Samina Gavahianjahromi   +4 more
wiley   +1 more source

Evaluación cualitativa pos instrumentación ex vivo comparando tres técnicas: Escalonada con Retroceso Programado-Oregón Modificada por la FOB-Técnica Rotatoria Protaper

Memorias del Instituto de Investigaciones en Ciencias de la Salud, 2017
El objetivo de este trabajo fue evaluar cualitativamente las regularidades de los conductos radiculares preparados con diferentes técnicas: técnica escalonada de retroceso programado, técnica Oregón modificada por la F.O.B.
Tania Bavera Cousirat, Ninfa Jacquett Toledo, Patricia Escobar Dávalos   +2 more
doaj  

The Twin‐Rooted Anomaly: Endodontic Management of a Rare Case of a Maxillary Central Incisor With Two Roots

Clinical Case Reports, Volume 14, Issue 1, January 2026.
ABSTRACT This case report describes the endodontic management of a maxillary central incisor with two roots, representing a rare anatomical variation. A 73‐year‐old female patient presented with a fractured tooth #21 with a carious crown. Pulp sensibility testing using cold spray elicited a sharp and prolonged painful response, consistent with a ...
Mohsen Aminsobhani, Maryam Babaahmadi
wiley   +1 more source

Apical extrusion of debris using ProTaper Universal and ProTaper Next rotary systems

, 2014
AimTo assess and compare the amount of extruded debris after canal preparation using ProTaper Universal and ProTaper Next files.MethodologyForty extracted mandibular premolars with single canals and of similar lengths were instrumented using the ProTaper
Sibel Koçak, Nigar Yilmaz, Ersan Çiçek, Baran Can Sağlam, M. M. Koçak   +4 more
core   +1 more source

A comparison of rotary and reciprocating nickel titanium preparation in simulated root canals [PDF]

, 2011
Aim To evaluate simulated root canal preparation using two different preparation techniques- classical Pro Taper and reciprocating. Operators prepared resin blocks which were either uncovered or covered. Methodology Inexperienced operators were used
Round, Simon Giles
core   +3 more sources