Endodontic retreatment: clinical comparison of reciprocating systems versus rotary system in disinfecting root canals

2014 ◽  
Vol 19 (6) ◽  
pp. 1411-1417 ◽  
Author(s):  
Frederico C. Martinho ◽  
Lilian F. Freitas ◽  
Gustavo G. Nascimento ◽  
Aleteia M Fernandes ◽  
Fabio R. M. Leite ◽  
...  
Keyword(s):  
Root Canals ◽  
Clinical Comparison ◽  
Reciprocating Systems ◽  
Endodontic Retreatment

Clinical Comparison of the Effectiveness of Single-file Reciprocating Systems and Rotary Systems for Removal of Endotoxins and Cultivable Bacteria from Primarily Infected Root Canals

2014 ◽  
Vol 40 (5) ◽  
pp. 625-629 ◽  
Author(s):  
Frederico C. Martinho ◽  
Ana P.M. Gomes ◽  
Aletéia M.M. Fernandes ◽  
Nádia S. Ferreira ◽  
Marcos S. Endo ◽  
...  
Keyword(s):  
Root Canals ◽  
Cultivable Bacteria ◽  
Single File ◽  
Clinical Comparison ◽  
Infected Root ◽  
Reciprocating Systems

scholarly journals Intratubular Enterococcus faecalis viability assessment following root canal instrumentation with rotary and reciprocating systems via fluorescence microscopy

2020 ◽  
Vol 14 (4) ◽  
pp. 214-217
Author(s):  
Jamileh Ghoddusi ◽  
Ehsan Arian ◽  
Maryam Golmohammadi ◽  
Maryam Gharechahi ◽  
Siavash Moushekhian
Keyword(s):  
Enterococcus Faecalis ◽  
In Vitro Study ◽  
Sampling Procedure ◽  
T Test ◽  
Root Canals ◽  
Paired Samples ◽  
Viable Bacteria ◽  
Root Canal Instrumentation ◽  
Reciprocating Systems

Background. The present in vitro study aimed to compare the effectiveness of the WaveOne and ProTaper Gold systems in removing the Enterococcus faecalis biofilm. Methods. Thirty-eight mandibular premolars were selected. The root canals were assigned to standard control (canals serially enlarged with ProTaper Gold S1-S2-F1-F2, n=15) and experimental (canals enlarged with Primary WaveOne file, n=15) groups. Following the instrumentation procedure, the root canals underwent a sampling procedure, and the colonyforming unit (CFU) counts were determined. The samples were also evaluated under a fluorescent microscope to evaluate viable bacteria. The data were analyzed using independent samples t test and paired samples t test. Results. The results showed that, compared with the ProTaper group, the WaveOne group exhibited the least viable bacteria (P=0.004). Conclusion. It was concluded that comparison with the ProTaper Gold rotary system, the WaveOne reciprocating file is more successful in reducing intratubular viable bacteria counts.

scholarly journals Endodontic Retreatment of a Mandibular Second Premolar with Four Roots and Four Canals: A Case Report

2020 ◽  
Author(s):  
Girish Nanjannawar ◽  
Saquib Mulla ◽  
Divya Gupta ◽  
Sharad Kamat
Keyword(s):  
Case Report ◽  
Root Canal ◽  
Accurate Diagnosis ◽  
Clinical Implications ◽  
Canal System ◽  
Root Canals ◽  
Single Root ◽  
Comprehensive Knowledge ◽  
Root Canal System ◽  
Endodontic Retreatment

It is a well-recognised fact that incomplete cleaning, shaping and obturation of root canals will lead to endodontic failure. Mandibular second premolars usually have a single root and a single root canal. The presence of four separate roots and four root canals is quite rare. Hence, a comprehensive knowledge about the normal canal configuration along with its variations becomes an indispensable pre-requisite to achieve the success of endodontic treatment. Authors hereby present a case of a 26-year-old male patient and describe its succesful treatment of the mandibular second premolar with four roots and four root canals. The clinical implications of this paper aim at establishing an accurate diagnosis of the root canal system using diagnostic aids such as angulated radiographs and making use of advanced endodontic instruments for successful retreatment of endodontic therapy (C+ files and NiTi rotary endodontic instruments).

Retreatment and Restoration Using Individual Formable Fibre Post and Crown - Case Report

2020 ◽  
Vol 48 ◽  
pp. 15-21
Author(s):  
Rinda Wanodyatama ◽  
Tri Endra Untara ◽  
Tunjung Nugraheni
Keyword(s):  
Case Report ◽  
Root Canal ◽  
Root Canal Treatment ◽  
Root Canals ◽  
Gutta Percha ◽  
Surgical Methods ◽  
Dental Hospital ◽  
Conservative Dentistry ◽  
One Year ◽  
Endodontic Retreatment

Endodontic retreatment is an attempt to reachieve a healthy periapical after it was previously been carried out an inadequate or reinfected endodontic retreatment that has been filled due to the leakage of apical and coronal. One stage in this retreatment is an uptake of obturasi material using hedstrom file (H-file). The solvent material used in this endodontic retreatment is xylol. Case report. A 22-year-old male patient came to the Clinic of Conservative Dentistry Dental Hospital Prof. Soedomo, Faculty of Dentistry, Gadjah Mada University (UGM) wanted to treat his mandibular second right premolar (45) that has been painful since two months ago. The tooth had root canal treatment one year ago. The pain suddenly appears and disappears as soon as the patient consumes painkillers. Dental preoperative (periapical) radiograph tooth 45 showed a picture of gutta percha root canals and radiolucent images at the tip of the root of the tooth. Diagnosis of tooth 45 is non-vital tooth after root canal treatment accompanied by apical, symptomatic periodontitis. The operator performed a root canal treatment by dismantling the restoration on the occlusal part of tooth 45 and taking gutta percha using a hedstrom file followed by treatment of the root canal, crown lengthening, installation of individual formable fiber post and porcelain fused to metal crown. Conclusion. Retreatment of root canal treatment with non-surgical methods still can be conducted effectively and obtain good results with the final treatment results in smaller lesions in the apical portion of tooth 45.

scholarly journals Removal of Separated Endodontic K-File with the Aid of Hypodermic Needle and Cyanoacrylate

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Luciana Maria Arcanjo Frota ◽  
Bernardo Almeida Aguiar ◽  
Maria Gerusa Brito Aragão ◽  
Bruno Carvalho de Vasconcelos
Keyword(s):  
Low Cost ◽  
Hypodermic Needle ◽  
Alternative Technique ◽  
Canal System ◽  
Root Canals ◽  
Cyanoacrylate Adhesive ◽  
Wide Range ◽  
Simple Alternative ◽  
Root Canal System ◽  
Endodontic Retreatment

A wide range of accidents might happen during the treatment of the root canal system, where the instrument separation is one of the most unpleasant occurrences. Several techniques have been developed to facilitate the removal of the fragments; however, they generally require specific devices that not always are available to the clinician. The aim of this case report is to present a simple alternative technique to remove from the root canals manual instruments fractured during the treatment. The case has its outline based on a 31-year-old patient who sought the clinic to have her maxillary first left premolar rehabilitated. The clinic and radiographic examinations revealed the need of endodontic retreatment and the presence of a fragment of a K-file instrument localized at the apical third of the palatine canal. The retreatment was initiated by the removal of the obturation materials followed by several unsuccessful attempts to take out the fractured instrument. Hence, it was chosen to perform the fragment removal using a hypodermic needle and cyanoacrylate adhesive. The fragment easily came out, which reinforces the technique adopted as a safe, simple, and low cost mean to solve the problem of fractured instruments using only items already present in the endodontic arsenal.

scholarly journals Avaliação da extrusão de debris gerados pelo retratamento endodôntico utilizando sistemas reciprocantes e limas manuais/ Evaluation of debris extrusion generated by endodontic retreatment using reciprocating Systems and Hand Files

2021 ◽  
Vol 4 (2) ◽  
pp. 8877-8889
Author(s):  
Bruno Carvalho de Sousa ◽  
Paulo Henrique da Cunha Sobrinho ◽  
Domingos Cavalcante da Silva ◽  
Juvencio Santos Nobre ◽  
Francisco Luis da Costa de Morais Netto ◽  
...  
Keyword(s):  
Reciprocating Systems ◽  
Endodontic Retreatment

scholarly journals Radiographic and scanning electron microscopic assessment of root canal filling remnants after endodontic re-instrumentation

2017 ◽  
Vol 20 (1) ◽  
pp. 80 ◽  
Author(s):  
Luciane Geanini Pena Santos ◽  
Wilson Tadeu Felippe ◽  
Beatriz Dulcineia Mendes Souza ◽  
Andrea Cristina Konrath ◽  
Mabel Mariela Rodríguez Cordeiro ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Root Canal ◽  
Filling Material ◽  
Root Canal Filling ◽  
Root Canals ◽  
Filling Materials ◽  
Ah Plus ◽  
Endodontic Retreatment ◽  
Scanning Electron

<p><strong>Objective: </strong>Failures in endodontic treatment may occur by several reasons. Endodontic retreatment is an interesting alternative to manage this clinical problem. However, it is not possible to completely remove the root canal filling by any current retreatment technique. The aim of this study was to evaluate the presence of residual root canal filling materials after endodontic re-instrumentation. <strong>Material and Methods:</strong> Sixty extracted anterior human teeth were prepared by step-back technique with Flexofiles, K-files and Gates-Glidden (GG) burs. Between the use of each file or bur, root canals were irrigated with sodium hypochlorite (NaOCl). Smear layer was removed by irrigation with ethylenediaminetetraacetic acid and NaOCl. After drying with paper points the root canals were randomly divided into 5 groups (n = 12), according to filling material: Resilon cones/Real Seal sealer or gutta-percha cones and Endofill, Sealapex, AH Plus or MTA Fillapex sealers. After one week, root canal fillings were removed using Eucaliptol and K-files. Root canals were re-instrumented with K-files and GG burs sized larger than the first ones. The removal of root canal filling material was analyzed by radiography and scanning electron microscopy (SEM). Statistical analysis was performed using Binary Logistic Regression test (P &lt; 0.05). <strong>Results: </strong>Radiographic and SEM analysis showed that material from the<strong> </strong>MTA Fillapex group was better removed than that from Endofill, Sealapex, AH Plus and Real Seal groups. <strong>Conclusion: </strong>After re-instrumentation<strong>, </strong>MTA Fillapex group showed less remnants into the root canals than Endofill, Sealapex, AH Plus and Real Seal groups. Residual material was most often found in the apical third.</p><p><strong>Keywords </strong></p><p>Dental radiography; Endodontic retreatment; Root canal filling materials; Scanning electron microscopy.</p>

scholarly journals Influence of the rotary and/or oscillatory reciprocating systems in the morphological changes of narrow and curved molar root canals anatomy

2012 ◽  
Vol 41 (5) ◽  
pp. 353-359
Author(s):  
Joedy Maria Costa Santa Rosa ◽  
Fábio Roberto Dametto ◽  
Cicero Romão Gadê-Neto ◽  
Rejane Andrade de Carvalho ◽  
Diana Santana de Albuquerque ◽  
...  
Keyword(s):  
Root Canal ◽  
Morphological Changes ◽  
Digital Camera ◽  
Operating Microscope ◽  
X Ray ◽  
Root Canals ◽  
Before And After ◽  
Reciprocating Systems

OBJECTIVE: This study evaluated four mechanized Endodontic systems, ProTaper Universal, K3 Endo, Twisted file (rotary) and the oscillatory reciprocating system Endo - Eze TiLOS, in order to verify and measure alterations in original anatomy with deviations at cervical, medium and apical root canal thirds. MATERIAL AND METHOD: It was used MB root canals of 60 extract human lower molars, to produce a line of severe angles, according to the classification of Schneider. Samples were included in Ester vinyl resin, mounted in the Teflon Furnace, transversally sectioned at the cervical, middle and apical thirds, which were subsequently photographed using a digital camera Cyber Shot DSC-TX10,attached to an operating microscope 3101XY DFVasconcelos with 40× magnification in order to measure the anatomical transversal area of the root canal, using the software AutoCAD 2008, comparing pre and post-instrumentation. All samples assembled in the Furnace also were submitted to x-ray in a standardized way to enable the comparison of the angle of Schneider pre-and post-instrumentation. Once collected the data, they were compared statistically using the program BioEstat 5.0. RESULT: The analysis of the results showed that in the cervical third, rotary systems were more effective than Endo-Eze TiLOS System with statistically significant differences (p ≤ 0,05). Apical and middle third changes in anatomy were similar, but apically, the ProTaper system caused more deviations when comparing the angle of Schneider,and areas before and after instrumentation(p ≤ 0,05). CONCLUSION: It was concluded that all the systems caused alteration in the original anatomy of the root canal when parameters as angle of Schneider and areas before and after preparation were used.

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