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https://www.readbyqxmd.com/read/28635100/a-new-system-for-classifying-accessory-canal-morphology
#1
REVIEW
H M A Ahmed, P Neelakantan, P M H Dummer
Thorough knowledge of the anatomical complexities of the root canal system has a direct impact on the effectiveness of canal preparation and filling, and is an essential prerequisite for successful root canal treatment. A wide range of complex variations in root canal anatomy exists, including root canal configuration type, developmental anomalies and more minor canal morphology such as accessory canals and apical deltas. Accessory canals and apical deltas have been associated with pulp disease, primary canal infection, canal reinfection and post-treatment disease...
June 21, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28631551/apical-microleakage-in-root-canals-obturated-with-2-different-endodontic-sealer-systems-in-canine-teeth-of-dogs
#2
Chad W Lothamer, Ashley Anderson, Scott J Hetzel, Alex I Adrian, Christopher Snyder, Stephanie Goldschmidt, Jason W Soukup
An apical dye leakage test was utilized to compare 2 endodontic sealer systems commonly used in veterinary endodontic treatment. Rotary instrumentation followed by injection of 2 different sealers (GuttaFlow 2 and AH Plus) and a single master cone obturation technique were compared. Following obturation and restoration, specimens were immersed in India ink for 48 hours. A tooth mineral clearing technique was utilized to render the tooth samples transparent. Subsequently, the apices were evaluated for prevalence and magnitude of apical dye penetration under magnification...
June 2017: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28627377/mikania-glomerata-sprengel-extract-and-its-major-compound-ent-kaurenoic-acid-display-activity-against-bacteria-present-in-endodontic-infections
#3
Dora Lúcia Carrara Moreti, Luís Fernando Leandro, Thaís da Silva Moraes, Monique Rodrigues Moreira, Rodrigo Cassio Sola Veneziani, Sergio Ricardo Ambrosio, Brenda Paula Figueiredo Almeida Gomes, Carlos Henrique Gomes Martins
The search for new, effective and safe antimicrobial compounds from plant sources has continued to play an important role in the maintenance of human health since ancient times. Such compounds can be used to help to eradicate microorganisms from the root canal system, preventing/healing periapical diseases. Mikania glomerata (Spreng.), commonly known as "guaco," is a native climbing plant from Brazil that displays a wide range of pharmacological properties. Many of its activities have been attributed to its phytochemical composition, which is mainly composed of diterpenes, such as ent-kaurenoic acid (KA)...
June 13, 2017: Anaerobe
https://www.readbyqxmd.com/read/28626288/assessment-of-radicular-dentin-permeability-after-irradiation-with-co2-laser-and-endodontic-irrigation-treatments-with-thermal-imaging
#4
Heajin Cho, Robert C Lee, Kenneth H Chan, Daniel Fried
Previous studies have demonstrated that the permeability changes due to the surface modification of dentin can be quantified via thermal imaging during dehydration. The CO2 laser has been shown to remove the smear layer and disinfect root canals. Moreover, thermal modification via CO2 laser irradiation can be used to convert dentin into a highly mineralized enamel-like mineral. The purpose of this study is to evaluate the radicular dentin surface modification after CO2 laser irradiation by measuring the permeability with thermal imaging...
January 28, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28621288/photodvnamic-therapy-in-endodontics
#5
Zahed Mohammadi, Hamid Jafarzadeh, Sousan Shalavi, Jun-Ichiro Kinoshita
Commonly used irrigants do not always eradicate the entire microbial flora in infected root canals. Therefore, several other strategies, such as photodynamic therapy (PDT) have been developed. Photoactivated disinfection is based on the interaction of a photosensitive antibacterial agent and a light source. It uses a nontoxic dye named photosensitizer (PS) and low-intensity visible light. In oxygen presentation, these combine to produce some cytotoxic species. The PS molecules attach to bacteria membrane. Irradiation with a specific wavelength of the light may lead to the production of singlet oxygen, resulting in rupture of the microbial cell wall...
June 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28621286/endodontic-management-of-dilacerated-maxillary-central-incisor-fused-to-a-supernumerary-tooth-using-cone-beam-computed-tomography-an-unusual-clinical-presentation
#6
Thilla S Vinothkumar, Deivanayagam Kandaswamy, Ganesh Arathi, Sathishkumar Ramkumar, Gnanasekaran Felsypremila
AIM: The purpose of this report is to present a case of endodontic management of a dilacerated maxillary central incisor fused to supernumerary tooth unusually appearing as a labial tubercle using cone beam computed tomography (CBCT) as a diagnostic aid. BACKGROUND: Anterior teeth are commonly encountered with aberrant anatomical variations in the crown, number of roots, and root canals. Fusion is an infrequent developmental abnormality in shape of the tooth caused by the union of two adjacent tooth germs...
June 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28620615/component-release-and-mechanical-properties-of-endodontic-sealers-following-incorporation-of-antimicrobial-agents
#7
Elizabeta S Gjorgievska, John W Nicholson, Nichola J Coleman, Samantha Booth, Aleksandar Dimkov, Andrew Hurt
Root canal sealers with antimicrobial activity are highly beneficial; therefore, their antimicrobial properties could be improved by incorporation of antimicrobial agents. In the present study, the release of the quaternary ammonium compounds from endodontic sealers admixed with either benzalkonium chloride (BC) or cetylpyridinium chloride (CPC) at loadings of 2% wt was monitored. The effect of these additives on the compressive strengths and their release from the sealers was determined after 1 and 4 weeks...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28615078/characterisation-of-roseomonas-mucosa-isolated-from-the-root-canal-of-an-infected-tooth
#8
Nina Diesendorf, Stefanie Köhler, Walter Geißdörfer, Tanja Grobecker-Karl, Matthias Karl, Andreas Burkovski
OBJECTIVE: The genus Roseomonas comprises a group of pink-pigmented, slow-growing, aerobic, non-fermentative Gram-negative bacteria, which have been isolated from environmental sources such as water and soil, but are also associated with human infections. In the study presented here, Roseomonas mucosa was identified for the first time as part of the endodontic microbiota of an infected root canal and characterised in respect to growth, antibiotic susceptibility and biofilm formation. RESULTS: The isolated R...
June 14, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28607556/factors-affecting-the-periapical-status-of-root-filled-canals-a-cross-sectional-study-at-the-undergraduate-level
#9
George Moreira Costa, Suelleng Maria Santos Soares, Paula Cristina Pelli Paiva, Flaviana Dornela Verli, Patrícia Furtado Gonçalves, Sangela Maria da Silva Pereira, Rudys Rodolfo De Jesus Tavarez, Janir Alves Soares, Etevaldo Matos Maia Filho
OBJECTIVE: The aim was to evaluate the influence of multiple factors on the periapical status of endodontically treated (ET) teeth. METHODS: The patients were clinically and radiographically reevaluated after root canal therapy. The quality of the root-filled canals, coronal restorations, intraradicular posts, dental caries, and periodontal parameters were associated with the teeth's periapical status. RESULTS: The 122 patients provided 154 ET teeth; 97...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28606669/effectiveness-in-the-removal-of-endotoxins-and-microbiological-profile-in-primary-endodontic-infections-using-3-different-instrumentation-systems-a-randomized-clinical-study
#10
Daiana Cavalli, Cássia Cestari Toia, Esteban Isai Flores Orozco, Rayana Duarte Khoury, Flávia Goulart da Rosa Cardoso, Marcelo Corrêa Alves, Cláudio Antônio Talge Carvalho, Marcia Carneiro Valera
INTRODUCTION: This clinical study was conducted to correlate the microbiological profile and levels of endotoxins found in primary endodontic infection with the presence of clinical features and to evaluate the removal of microorganisms and endotoxins using rotary, reciprocating, and hybrid systems for biomechanical preparation. METHODS: Thirty single root canals with primary endodontic infection were evaluated with signs and symptoms and were randomly divided into 3 groups according to the instrumentation system used (n = 10) as follows: rotary Mtwo instruments (VDW, Munich, Germany) with 8 files, the reciprocating Reciproc system (VDW) with a single file, and Genius hybrid instruments with 3 files (1 rotary and 2 reciprocating files) with irrigation using 24 mL 2...
June 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28606666/development-of-periapical-lesions-in-endodontically-treated-teeth-with-and-without-periodontal-involvement-a-retrospective-cohort-study
#11
Xavier-Fructuós Ruiz, Fernando Duran-Sindreu, Hagay Shemesh, Marc García Font, Marta Vallés, Miguel Roig Cayón, Juan Gonzalo Olivieri
INTRODUCTION: The purpose of this study was to investigate the incidence of apical periodontitis (AP) in endodontically treated teeth with and without periodontal involvement. METHODS: The records of 602 patients with 775 root canal-treated teeth were initially examined. Only teeth with adequate root canal filling, adequate coronal restoration, and no AP (periapical index = 1) were selected for further investigation. A total of 194 teeth were included in this cohort study...
June 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28597006/effect-of-final-irrigation-protocol-and-etching-mode-on-bond-strength-of-a-multimode-adhesive-in-the-root-canal
#12
Kerstin Bitter, Luise Polster, Haitham Askar, Manja von Stein-Lausnitz, Guido Sterzenbach
PURPOSE: To analyze the effects of ethanol for final post space irrigation and etching mode on the bond strength of fiber posts luted with a mild multimode adhesive (pH 2.3) as compared with a reference group using a self-adhesive resin cement (SAR). MATERIALS AND METHODS: Human anterior teeth were endodontically treated. After post space preparation, the root canals were irrigated using 1% sodium hypochlorite (NaOCl) applied with passive ultrasonic irrigation, followed by either distilled water (control) or distilled water and ethanol 99% as final post space irrigation...
June 8, 2017: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/28580816/can-the-enterococcus-faecalis-identified-in-the-root-canals-of-primary-teeth-be-a-cause-of-failure-of-endodontic-treatment
#13
Viviane Cancio, Dennis de Carvalho Ferreira, Fernanda Sampaio Cavalcante, Alexandre Soares Rosado, Lúcia Martins Teixeira, Queila Braga Oliveira, Roberta Barcelos, Rogerio Gleiser, Henrique Fragoso Santos, Kátia Regina Netto Dos Santos, Laura Guimarães Primo
OBJECTIVE: This study investigated the presence of Enterococcus faecalis in primary teeth with primary root canal infections and related to the possible failure of pulpectomy outcome after 36 months. MATERIAL AND METHODS: Root canal samples were obtained from 25 out of 244 patients using the sterile paper cone method. The identification of E. faecalis was done with culture and molecular tests using species-specific 16S rRNA gene-based polymerase chain reaction (PCR)...
June 5, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28578887/a-retrospective-radiographic-outcomes-assessment-of-1960-initial-posterior-root-canal-treatments-performed-by-endodontists-and-dentists
#14
Kelly Ramey, John Yaccino, James Wealleans
INTRODUCTION: The Air Force Dental Service has established evidence-based treatment standards for endodontics, including 3-dimensional filling of the canal system, cuspal coverage restoration of endodontically treated posterior teeth, and use of rubber dam. The purpose of this retrospective study was to determine the effect of these standards on outcomes of initial posterior root canal treatments (RCTs) completed by Air Force (AF) and civilian dentists with and without accredited postgraduate training...
June 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28577961/histologic-evaluation-of-regenerative-endodontic-procedures-with-the-use-of-chitosan-scaffolds-in-immature-dog-teeth-with-apical-periodontitis
#15
Paulo J Palma, João C Ramos, João B Martins, Anibal Diogenes, Maria H Figueiredo, Paula Ferreira, Carlos Viegas, João M Santos
INTRODUCTION: The aim of this study was to evaluate histologically the newly formed tissues after regenerative endodontic procedures (REPs) in dogs using either a blood clot (BC) or 2 different formulations of a chitosan hydrogel as scaffolds. METHODS: Apical periodontitis was induced by inoculating immature teeth with oral plaque in 4 beagle dogs. Teeth (n = 96) were divided into 2 control (n = 20) and 4 test groups (n = 76) according to the treatment: apexification and REPs with BC, sodium hyaluronate:chitosan (HA:CS) scaffolds, or pectin:chitosan (P:CS) scaffolds...
May 31, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28574115/a-comparative-study-of-cone-beam-computed-tomography-and-periapical-radiographs-in-decision-making-after-endodontic-instrument-fractures
#16
Senem Y Özer, Gökhan Özkan, Emrah Çetin, Hicran D Özkan
PURPOSE: This study aimed to compare the diagnostic efficacies of periapical radiographs (PRs) and cone-beam computed tomography (CBCT) scans on clinicians' decision-making in diagnosing and providing treatment of fractured instruments in root canals during glide path preparation. METHODS: 40 maxillary molar teeth were selected and randomly divided into 4 groups. In each experimental group (n = 10), Hedstroem stainless steel instruments were fractured in mesiobuccal (MB) or distobuccal (DB) root canals...
May 26, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28571296/maxillary-second-molar-with-fused-root-and-six-canals-a-case-report
#17
Mitthra Suresh, Kittappa Karthikeyan, Sekar Mahalaxmi
One of the known aberrations in root canal morphology of maxillary second permanent molars is the presence of collateral mesiobuccal canals. This case report describes the endodontic management of a maxillary second molar that had a single fused root with six canals that was successfully managed with the aid of dental operating microscope. Six canal orifices were located namely MB1 (Mesiobuccal), MB2, MB3, DB1 (Distobuccal), DB2 and palatal. During the cleaning and shaping, instrument separation occurred at the apical third of the palatal canal which was removed with ultrasonics...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28571279/comparative-evaluation-of-different-modes-of-laser-assisted-endodontics-in-primary-teeth-an-in-vitro-study
#18
Prabhakar Ramasetty Attiguppe, Krupa Kishore Tewani, Saraswathi V Naik, Chandrashekar M Yavagal, Basappa Nadig
INTRODUCTION: The presence of bacteria in root canals has been considered to be responsible for endodontic treatment failure, even in case of primary teeth. The use of lasers can be a valuable addition in removing bacterial load in areas where traditional methods may fail to succeed. Methods like direct laser irradiation of canals, Laser Activated Irrigation (LAI) with sodium hypochlorite (NaOCl) and Photodynamic Therapy (PDT) seem to be a promising alternative for disinfection. AIM: This study was designed to compare the efficacy of latest advancements in disinfection techniques using diode laser namely direct laser irradiation, photodynamic therapy and laser activated irrigation using sodium hypochlorite...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28571249/effectiveness-of-various-endodontic-irrigants-on-the-micro-hardness-of-the-root-canal-dentin-an-in-vitro-study
#19
Suparna Ganguly Saha, Vini Sharma, Anuj Bharadwaj, Poorvi Shrivastava, Mainak Kanti Saha, Sandeep Dubey, Shubham Kala, Shubhra Gupta
INTRODUCTION: Irrigating solutions used for the elimination of micro-organisms during root canal preparation may affect the chemical and the physical properties of dentin thereby rendering the tooth more susceptible to fracture. Therefore careful and judicious selection of irrigant is required which have maximum benefits with minimum undesirable properties. AIM: The aim of the present study was to evaluate the effect of various endodontic irrigants on the micro-hardness of the root canal dentin...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28567140/bioactive-glass-in-endodontic-therapy-and-associated-microsurgery
#20
REVIEW
Andrea Corrado Profeta, Gian Marco Prucher
INTRODUCTION: Bioactive-glass (B-G) has become a valuable adjunct to promote hard-tissue healing in many clinical situations and is of particular interest for endodontic care because of its biocompatibility, regenerative and antimicrobial properties as well as chemical composition that closely resembles the mineral make-up of human bone and dentine. THERAPY: Initial studies suggested that bacteria-tight sealing within the entire root canal system can be achieved and successfully maintained after orthograde treatment...
2017: Open Dentistry Journal
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