Results 81 to 90 of about 1,129,395 (186)

Evaluation of the Separation Length of ProTaper Universal Rotary Files [PDF]

Journal of Research and Practice in Dentistry, 2014
Research Motivation: This study aims to analyze the correlation between the size of ProTaper® Universal rotary files and the length at which separation occurs. Design/Methodology: 120 separated ProTaper® Universal rotary files that broke during root canal treatment were collected from different clinics.
Hüseyin Ertaş, Hakan Arslan, Banu Uysal, Tuba Gök, Gökhan Saygılı   +4 more
openaire   +1 more source

Nonsurgical Management of Extensive Internal Root Resorption: A 48‐Month Follow‐Up Case Report

Case Reports in Dentistry, Volume 2026, Issue 1, 2026.
A 21‐year‐old male presented with a nonvital right maxillary central incisor with percussion sensitivity and mild mobility. Cone‐beam computed tomography (CBCT) confirmed extensive internal root resorption (IRR) involving nearly the entire root, with a buccal cortical bone defect but no perforation of the root.
Hamdi Alperen Yalcin, Aybike Sayar, Tommaso Lombardi   +2 more
wiley   +1 more source

Influence of Operator's Experience on the Shaping Ability of Protaper Universal and Waveone Systems: A Comparative Study on Simulated Root Canals. [PDF]

Open Dent J, 2016
Objective: To assess the influence of operator experience on: shaping and centering ability, mean preparation time and presence of canal aberrations of ProTaper Universal and WaveOne systems on simulated root canals. Materials and Methods: Sixty S-shaped
Troiano G, Dioguardi M, Cocco A, Giannatempo G, Laino L, Ciavarella D, Berutti E, Lo Muzio L.   +7 more
europepmc   +2 more sources

Successful Nonsurgical Resolution of a Large Periapical Lesion With Pre‐Existing Sealer Extrusion and Adjacent External Inflammatory Root Resorption: A Case Report

Case Reports in Dentistry, Volume 2026, Issue 1, 2026.
The primary aim of root canal treatment is to eliminate intracanal infection, achieve an apical and coronal seal, and create conditions that allow repair of the periapical tissues. In root‐filled teeth, persistent apical periodontitis may be associated with extensive periapical lesions, external inflammatory root resorption affecting the treated or ...
Btissam Seffahi, Nisrine Bassim, Faïza Abdallaoui, Barbara Lapinska   +3 more
wiley   +1 more source

An in vitro analysis of separation of multi‐use ProTaper Universal and ProTaper Next instruments in extracted mandibular molar teeth [PDF]

Scanning, 2015
SummaryThis study investigated the separation incidence of reused ProTaper Universal and ProTaper Next rotary instruments and identified the location of separated fragments. The root canals of extracted human mandibular molars were prepared with 10 assorted sets of ProTaper Universal and ProTaper Next instruments.
Huseyin, Ertas, Ismail Davut, Capar
openaire   +2 more sources

Nonvital Pulp Therapy in Primary Teeth Using Mineral Trioxide Aggregate Obturation: A Retrospective Case Series

Case Reports in Dentistry, Volume 2026, Issue 1, 2026.
Nonvital pulp therapy is a treatment option that can preserve pathologically affected primary teeth and contribute to space maintenance. This retrospective case series examined the healing effects in infected primary teeth after pulpectomy (PE) using mineral trioxide aggregate (MTA) obturation and eruption characteristics of the succedaneous teeth ...
Tetsuhide Makiguchi, Yoshi Terauchi, Kingsley Wong, George Bogen, Jose Francisco Gomez-Sosa   +4 more
wiley   +1 more source

Screw-in forces during instrumentation by various file systems

Restorative Dentistry & Endodontics, 2016
Objectives The purpose of this study was to compare the maximum screw-in forces generated during the movement of various Nickel-Titanium (NiTi) file systems.
Jung-Hong Ha, Sang Won Kwak, Sung-Kyo Kim, Hyeon-Cheol Kim   +3 more
doaj   +1 more source

Endodontic Management of a C‐Shaped Maxillary Second Molar With Five Canals: A Case Report

Case Reports in Dentistry, Volume 2026, Issue 1, 2026.
The understanding of morphological variations in the canal along with the ability to detect and manage the root canal system are essential for achieving a satisfactory endodontic treatment outcome. This case report presents the endodontic management of a C‐shaped maxillary second molar with five canals.
Yiwen Wang, Beining Liao, Hongyin Ruan, Xinyan Ge, Dan Zhao, Hannah Wesley   +5 more
wiley   +1 more source

A comparative evaluation of different retreatment methods on apical root microcracks initiation and propagation: An in vitro study

Endodontology
Aim: This study aims to evaluate and compare the effect of Hedstrom files, ProTaper Universal retreatment files, D-Race retreatment files, and Clearsonic retreatment tips on apical root microcrack initiation, propagation during retreatment procedure ...
Shweta Lodha, Zinnie Nanda
doaj   +1 more source

Uncommon Canal Anatomy: Identification and Treatment of Middle Distal Canal in Mandibular First Molars—A Report on Two Cases

Case Reports in Dentistry, Volume 2026, Issue 1, 2026.
Mandibular molars often exhibit high variation in canal anatomy. Failing to identify these variations can negatively impact treatment outcomes. This report describes two cases of mandibular first molars with middle distal canals. In Case 1, the patient was a United Arab Emirates (UAE) national who presented with symptomatic irreversible pulpitis ...
Hend Mahmoud Abou El Nasr, Hannah Wesley
wiley   +1 more source