scholarly journals Efficacy of three Ni–Ti rotary systems for removal of filling materials from root canal system of extracted teeth

2015 ◽  
Vol 12 (4) ◽  
pp. 259-264
Author(s):  
Maram Farouk Obeid ◽  
Abeer Abdelhakim Elgendy
Keyword(s):  
Root Canal ◽  
Canal System ◽  
Filling Materials ◽  
Root Canal System

scholarly journals Retreatment Efficacy of Endodontic Bioceramic Sealers: A Review of the Literature

2018 ◽  
Vol 20 (2) ◽  
pp. 39-50
Author(s):  
Flora Kakoura DDS ◽  
Ourania Pantelidou DDS, PhD
Keyword(s):  
Root Canal ◽  
Feasible Solution ◽  
Complete Removal ◽  
Canal System ◽  
Filling Materials ◽  
Working Length ◽  
Root Canal System ◽  
New Generation ◽  
Endodontic Retreatment ◽  
Endodontic Sealers

The endodontic retreatment is a feasible solution when post-operative apical periodontitis persists or develops. The complete removal of the filling materials is important in order to ensure the unobstructed contact of the intracanal disinfectants with the microbes. As a new generation of bioceramic endodontic sealers has emerged, their removal efficacy from the root canal system during retreatment is a matter of concern among clinicians. The aim of this article is to provide a comprehensive review of the current literature on the retreatability of these novel obturating materials. A significant amount of bioceramic sealer remnants in the root canal walls was observed in all studies.  Even though canal cleanliness could not be obtained at an ideal level, the re-establishment of the working length and patency can be considered manageable and comparable to other endodontic sealers.

scholarly journals Assessment of Antimicrobial Activity of Endodontic Sealers on Enterococcus faecalis: An in vitro Study

2012 ◽  
Vol 3 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Anjali Kaiwar ◽  
Gururaj Nadig ◽  
Jayashree Hegde ◽  
S Lekha
Keyword(s):  
Antimicrobial Activity ◽  
Enterococcus Faecalis ◽  
Root Canal ◽  
In Vitro Study ◽  
Filling Material ◽  
Canal System ◽  
Filling Materials ◽  
Root Canal System ◽  
Endodontic Sealers

ABSTRACT Microorganisms invading the root canal system of a tooth may interact with the host tissue and cause pulpo-periapical pathosis. The goals of root canal treatment are to disinfect the root canal system and to prevent subsequent reinfection. The disinfection is attempted with endodontic instruments, irrigants, and medications. Due to the complex canal anatomy, microorganisms can persist even after thorough disinfection regimens are used. After disinfection, the canal is sealed with a root filling material along with sealers. To curtail residual microorganisms, root-filling materials should ideally be bactericidal, as well as biocompatible. In addition, the root filling materials are expected to act as a physical barrier to prevent the leakage of substrate to any residual microorganisms and the ingress of additional microorganisms. The aim of the present study was to assess the antimicrobial activity of various Endodontic sealers on the Enterococcus faecalis. Enterococcus faecalis is a microorganism commonly detected in asymptomatic, persistent endodontic infections. In the changing face of dental care, continued research on E. faecalis and its elimination from the dental apparatus may well define the future of the endodontic specialty. How to cite this article Kaiwar A, Nadig G, Hegde J, Lekha S. Assessment of Antimicrobial Activity of Endodontic Sealers on Enterococcus faecalis: An in vitro Study. World J Dent 2012;3(1):26-31.

scholarly journals Retreatment Efficacy of Endodontic Bioceramic Sealers: A Review of the Literature

2018 ◽  
Vol 20 (2) ◽  
pp. 39-50 ◽  
Author(s):  
Flora Kakoura DDS ◽  
Ourania Pantelidou DDS, PhD
Keyword(s):  
Root Canal ◽  
Feasible Solution ◽  
Complete Removal ◽  
Canal System ◽  
Filling Materials ◽  
Working Length ◽  
Root Canal System ◽  
New Generation ◽  
Endodontic Retreatment ◽  
Endodontic Sealers

The endodontic retreatment is a feasible solution when post-operative apical periodontitis persists or develops. The complete removal of the filling materials is important in order to ensure the unobstructed contact of the intracanal disinfectants with the microbes. As a new generation of bioceramic endodontic sealers has emerged, their removal efficacy from the root canal system during retreatment is a matter of concern among clinicians. The aim of this article is to provide a comprehensive review of the current literature on the retreatability of these novel obturating materials. A significant amount of bioceramic sealer remnants in the root canal walls was observed in all studies.  Even though canal cleanliness could not be obtained at an ideal level, the re-establishment of the working length and patency can be considered manageable and comparable to other endodontic sealers.

scholarly journals Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alfredo Sierra-Cristancho ◽  
Luis González-Osuna ◽  
Daniela Poblete ◽  
Emilio A. Cafferata ◽  
Paola Carvajal ◽  
...  
Keyword(s):  
Root Canal ◽  
Multiple Root ◽  
Root Anatomy ◽  
Type I ◽  
Micro Computed Tomography ◽  
Canal System ◽  
Root Canals ◽  
Wide Range ◽  
Root Canal System ◽  
Chilean Population

AbstractThis study aimed to analyze the root anatomy and root canal system morphology of mandibular first premolars in a Chilean population. 186 teeth were scanned using micro-computed tomography and reconstructed three-dimensionally. The root canal system morphology was classified using both Vertucci’s and Ahmed’s criteria. The radicular grooves were categorized using the ASUDAS system, and the presence of Tomes’ anomalous root was associated with Ahmed’s score. A single root canal was identified in 65.05% of teeth, being configuration type I according to Vertucci’s criteria and code 1MP1 according to Ahmed’s criteria. Radicular grooves were observed in 39.25% of teeth. The ASUDAS scores for radicular grooves were 60.75%, 13.98%, 12.36%, 10.22%, 2.15%, and 0.54%, from grade 0 to grade 5, respectively. The presence of Tomes’ anomalous root was identified only in teeth with multiple root canals, and it was more frequently associated with code 1MP1–2 of Ahmed’s criteria. The root canal system morphology of mandibular first premolars showed a wide range of anatomical variations in the Chilean population. Teeth with multiple root canals had a higher incidence of radicular grooves, which were closely related to more complex internal anatomy. Only teeth with multiple root canals presented Tomes’ anomalous root.

scholarly journals Analysis of the Morpho-Geometrical Changes of the Root Canal System Produced by TF Adaptive vs. BioRace: A Micro-Computed Tomography Study

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 531
Author(s):  
Loai Alsofi ◽  
Muhannad Al Harbi ◽  
Martin Stauber ◽  
Khaled Balto
Keyword(s):  
Surface Area ◽  
Root Canal ◽  
Type I ◽  
Structure Model ◽  
Canal Surface ◽  
Canal System ◽  
Structure Model Index ◽  
Continuous Rotation ◽  
Before And After ◽  
Root Canal System

We aimed to analyze the morpho-geometric changes of the root canal system created by two rotary systems (TF Adaptive and BioRace) using micro-CT technology. Two concepts of rotary file system kinematics, continuous rotation and adaptive kinematics, were used in root canal preparation. Twenty mandibular molars (n = 20) were selected with the following criteria: the teeth have mesial roots with a single and continuous isthmus connecting the mesiobuccal and mesiolingual canals (Vertucci’s Type I configuration) and distal roots with independent canals. Teeth were scanned at a resolution of 14 μm. Canals were divided equally into two groups and then enlarged sequentially using the BioRace system and TF Adaptive system according to manufacturer protocol. Co-registered images, before and after preparation, were evaluated for morphometric measurements of canal surface area, volume, structure model index, thickness, straightening, and un-instrumented surface area. Before and after preparation, data were statistically analyzed using a paired sample t-test. After preparation, data were analyzed using an unpaired sample test. The preparation by both systems significantly changed canal surface area, volume, structure model index, and thickness in both systems. There were no significant differences between instrument types with respect to these parameters (p > 0.05). TF Adaptive was associated with less straightening (8% compared with 17% for BioRace in the mesial canal, p > 0.05). Both instrumentation systems produced canal preparations with adequate geometrical changes. BioRace straightened the mesial canals more than TF Adaptive.

scholarly journals Management of a non-vital immature tooth using MTA as an apical plug: Two case reports

2015 ◽  
Vol 5 (1) ◽  
pp. 41-46
Author(s):  
S Wagle ◽  
N Joshi ◽  
K Prajapati
Keyword(s):  
Root Canal ◽  
Case Reports ◽  
Mineral Trioxide Aggregate ◽  
Canal System ◽  
Immature Teeth ◽  
Open Apices ◽  
Root Canal System

MTA appears to be a valid option for apexification with its main advantage being, the speed at which the treatment can be completed. A major problem in performing endodontics in immature teeth with necrotic pulp and wide open apices is obtaining an optimal seal of the root-canal system. Mineral Trioxide Aggregate (MTA), has been proposed as a potential material to create an apical plug at the end of the root-canal system, thus preventing the extrusion of filling materials.DOI: http://dx.doi.org/10.3126/jcmc.v5i1.12574

Efficacy of ultrasonic and Er:YAG laser activated EDTA irrigation in removing bacteria from ex vivo root canal system

2018 ◽  
Vol 2 (4) ◽  
pp. 265-269
Author(s):  
Sharonit Sahar-Helft ◽  
Ayşe Sena Kabaş Sarp ◽  
Murat Gulsoy ◽  
Idan Redenski ◽  
Adam Stabholtz ◽  
...  
Keyword(s):  
Root Canal ◽  
Er:Yag Laser ◽  
Ex Vivo ◽  
Canal System ◽  
Root Canal System

scholarly journals Murine Experimental Root Canal Infection: Cytokine Expression in Response to F. nucleatum and E. faecalis

2016 ◽  
Vol 27 (5) ◽  
pp. 578-583 ◽  
Author(s):  
Andressa Lamari Reis ◽  
◽  
Ricardo Reis Oliveira ◽  
Warley Luciano Fonseca Tavares ◽  
Thamyris Duque Silva Saldanha ◽  
...  
Keyword(s):  
Gene Expression ◽  
Statistical Analysis ◽  
Enterococcus Faecalis ◽  
Experimental Infection ◽  
Root Canal ◽  
Fusobacterium Nucleatum ◽  
High Expression ◽  
Canal System ◽  
Independent Mechanism ◽  
Root Canal System

Abstract The aim of this study was to evaluate the gene expression of proinflammatory (RANKL, TNF-a and IFN-g) and regulatory (TGF-b and IL-10) cytokines as reaction to experimental infection by mono or bi-association of Fusobacterium nucleatum (ATCC 10953) and Enterococcus faecalis (ATCC 19433). F. nucleatum and E. faecalis, either in mono- or bi-association were inoculated into the root canal system (RCS) of Balb/c mice. Animals were sacrificed at 10 and 20 days after infection and periapical tissues surrounding the root were collected. The mRNA expression of the cytokines RANKL, TNF-a, IFN- g, TGF-b and IL-10 was assessed using real-time PCR. The Kruskal-Wallis test was used for statistical analysis. F. nucleatum mono-infection induced high expression of RANKL and TNF-a, while its modulation was due to IL-10. High expression of IFN-g at day 20 was up-regulated by E. faecalis and RANKL; TNF-a was up-regulated by an independent mechanism via IL-10 and TGF-b. Bi-association (F. nucleatum and E. faecalis) stimulated high expression of RANKL, TNF-a and IFN-g, which seemed to be modulated by TGF-b 20 days later. The gene expression of proinflammatory cytokines was more prominent in the earlier periods of the experimental periapical infection, which concomitantly decreased in the later period. This expression may be regulated by IL-10 and TGF-b in an infection-specific condition

Sign in / Sign up

Export Citation Format

Share Document