Results 121 to 130 of about 1,226,301 (294)

Is Cone‐Beam CT Reliable for Apical Foramen Assessment? A Micro‐CT–Referenced Study

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This study evaluated the diagnostic accuracy of two cone‐beam CT (CBCT) dose protocols for identifying the number and trajectory deviation of apical foramina. Forty lower molars were scanned in Micro‐CT. Thereafter, all teeth were inserted into the mandible sockets and a titanium implant and an endodontically treated tooth with a cobalt ...
João Pedro de Lima   +3 more
wiley   +1 more source

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

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

The Impact of Autoclave Sterilization on Cyclic Fatigue of Nickel-Titanium Rotary Endodontic Instruments

open access: yesDentistry 3000
Objective: The present study aimed to evaluate the impact of repeating sterilization in an autoclave on the cyclic fatigue resistance for three varieties of nickel-titanium (NiTi) rotary endodontic systems in double curved simulated canal.
Sura Yaseen Khudhur   +2 more
doaj   +1 more source

Discuss the Rationale for Minimally Invasive Endodontics and the Merits and Demerits of the Concept

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT Minimally invasive endodontics (MIE) places emphasis on the conservation of sound tooth structure and viable pulp tissue during endodontic procedures such as root canal treatment (RCTx) and vital pulp therapy (VPT). The use of minimal access cavity designs and conservative canal preparation dimensions have been investigated as a way to improve
Iris Mohan Li
wiley   +1 more source

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

open access: yesAustralian 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   +4 more
wiley   +1 more source

Effects of Calcium Hydroxide Paste and Access Cavities on Fracture Strength of Mature and Simulated Immature Human Teeth: Ex Vivo

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT The aim was to examine whether a Ca(OH)2 paste affects fracture strength of teeth. Sixty extracted maxillary central incisors were prepared to simulate immature teeth. Another 40 were used as mature teeth. The ten groups (n = 10) were: (1) immature control; (2) immature + access; (3) immature + access + 1 m Ca(OH)2; (4) immature + access + 12 ...
Naseem M. Hashim, Paul V. Abbott
wiley   +1 more source

Ultrasonic Technique to Retrieve a Rotary Nickel-Titanium File Broken Beyond the Apex and a Stainless Steel File from the Root Canal of a Mandibular Molar: A Case Report

open access: yesFrontiers in Dentistry, 2016
During endodontic treatment, clinicians may face endodontic procedural mishaps such as broken instruments, which is a complex situation especially when the file breaks beyond the apex.
Vineet Agrawal   +2 more
doaj  

Root canal instrumentation with ProTaper Universal instruments: revisited

open access: yes, 2010
A revised technique for the use of ProTaper Universal nickel titanium instruments is described. This modified technique was based on the crown-down principle, in which the ProTaper instruments were rearranged in such a way that each individual instrument
Low, DCY
core  

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