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https://www.readbyqxmd.com/read/28808463/micro-push-out-bond-strength-and-bioactivity-analysis-of-a-bioceramic-root-canal-sealer
#1
Ceci Nunes Carvalho, Renata Grazziotin-Soares, George Táccio de Miranda Candeiro, Luis Gallego Martinez, Juliana Pereira de Souza, Patrícia Santos Oliveira, José Bauer, Giulio Gavini
INTRODUCTION: Bioactive endodontic sealers have been developed to improve the quality of root canal obturation. EndoSequence Bioceramic (BC) Sealer is amongst calcium silicate-based materials recently developed for permanent root canal filling. The objective of this study was to evaluate the bioactivity of BC Sealer and its micro push-out bond strength to dentin compared to AH-Plus (AH) sealer. METHODS AND MATERIALS: To perform the micro push-out test, 24 root canals of mandibular premolars were instrumented and divided into two groups (n=12)...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28791811/a-laboratory-study-evaluating-the-ph-of-various-modern-root-canal-filling-materials
#2
Małgorzata Pawińska, Grzegorz Szczurko, Anna Kierklo, Jarosław Sidun
BACKGROUND: Alkaline pH is responsible for antibacterial activity and the stimulation of periapical tissue healing. It neutralizes the acidic environment of inflammatory tissues in the periapical region of the teeth and favors bone repair by activating tissue enzymes. OBJECTIVES: The aim of this study was to evaluate and compare in vitro the pH of 8 root canal filling materials (sealers and points) -AH Plus Jet (AH), Apexit Plus (AP), Endomethasone N (END), Epiphany (EP), GuttaFlow (GF), gutta-percha (G), Resilon (R), Tubliseal (T)...
May 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28764296/stereomicroscopic-dye-leakage-measurement-of-six-different-root-canal-sealers
#3
Srinidhi V Ballullaya, Vusurumarthi Vinay, Jayaprakash Thumu, Srihari Devalla, Indira Priyadarshini Bollu, Sagarika Balla
INTRODUCTION: Hermetic sealing of the root canal is the most desirable outcome of any root canal treatment, but almost always the filling of the root canal is defective, which is a multifactorial outcome. One such factor majorly influencing the obturation is the root canal sealer used. AIM: The present study was done for evaluating microleakage in different root canal sealers. MATERIALS AND METHODS: Sixty extracted human single rooted teeeth were used in this in-vitro study...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28761248/a-comparative-evaluation-of-the-effect-of-8-and-17-ethylenediaminetetraacetic-acid-exposure-for-1-min-and-10-min-on-the-fracture-resistance-of-endodontically-treated-roots-an-in-vitro-study
#4
Shreetha Bhandary, Sapna Kakamari, Raghu Srinivasan, Mahesh Martur Chandrappa, Farhat Nasreen, Pramod Junjanna
OBJECTIVE: The objective of this study was to evaluate the effect of 8% and 17% ethylenediaminetetraacetic acid (EDTA) exposure for 1 min and 10 min on the fracture resistance of endodontically treated roots. METHODOLOGY: Sixty human single-rooted teeth were decoronated and divided into six groups (n = 10). Canal preparation was carried out except in negative control group, using the ProTaper rotary file system. Final irrigation was performed using distilled water, 17% EDTA for 1 min and 10 min, 8% EDTA for 1 min and 10 min...
January 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28761246/efficacy-of-two-rotary-retreatment-systems-in-removing-gutta-percha-and-sealer-during-endodontic-retreatment-with-or-without-solvent-a-comparative-in-vitro-study
#5
Moushmi Chalakkarayil Bhagavaldas, Abhinav Diwan, S Kusumvalli, Shiraz Pasha, Madhuri Devale, Deepak Chowdary Chava
OBJECTIVES: The aim of this in vitro study was to compare the efficacy of two retreatment rotary systems in the removal of Gutta-percha (GP) and sealer from the root canal walls with or without solvent. MATERIALS AND METHODS: Forty-eight extracted human mandibular first premolars were prepared and obturated with GP and AH Plus sealer. Samples were then randomly divided into four groups. Group I was retreated with MtwoR rotary system without solvent, Group II was retreated with MtwoR rotary system with Endosolv R as the solvent, Group III with D-RaCe rotary system without solvent, and Group IV with D-RaCe rotary system and Endosolv R solvent...
January 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28756962/evaluation-of-different-techniques-for-filling-simulated-c-shaped-canals-of-3-dimensional-printed-resin-teeth
#6
Tuba Gok, Ismail Davut Capar, Ilgin Akcay, Ali Keles
INTRODUCTION: The purpose of this study was to compare the ability of different root canal filling methods on the C1 root canal anatomy using 3-dimensional (3D) printer technology. METHODS: Mandibular molars were scanned with cone-beam computed tomographic (CBCT) imaging. A mandibular molar tooth with a C1 root canal configuration was selected according to images obtained from CBCT technology. The root canals were shaped with ProTaper Universal rotary instruments (Dentsply Maillefer, Ballaigues, Switzerland) and hand files...
July 27, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28756958/new-insight-into-the-dissolution-of-epoxy-resin-based-sealers
#7
Inês Ferreira, Stephanie Soares, Joana Sousa, Joana Barros, Ana Cristina Braga, Maria Ascensão Lopes, Irene Pina-Vaz
INTRODUCTION: The purpose of this study was to evaluate the use of solvents that are not traditionally used in dentistry for the dissolution of an epoxy resin-based sealer and the effect of ultrasonic agitation (UA). METHODS: The dissolution of the AH Plus sealer (Dentsply DeTrey, Konstanz, Germany) and the effect of UA in various solvents (eucalyptol, xylene, chloroform, EndoSolv R [Septodont, Cedex, France], EndoSolv E [Septodont], methyl ethyl ketone [MEK], and ethyl acetate) were quantified...
July 27, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28751918/cellular-responses-in-human-dental-pulp-stem-cells-treated-with-three-endodontic-materials
#8
Alejandro Victoria-Escandell, José Santiago Ibañez-Cabellos, Sergio Bañuls-Sánchez de Cutanda, Ester Berenguer-Pascual, Jesús Beltrán-García, Eva García-López, Federico V Pallardó, José Luis García-Giménez, Antonio Pallarés-Sabater, Ignacio Zarzosa-López, Manuel Monterde
Human dental pulp stem cells (HDPSCs) are of special relevance in future regenerative dental therapies. Characterizing cytotoxicity and genotoxicity produced by endodontic materials is required to evaluate the potential for regeneration of injured tissues in future strategies combining regenerative and root canal therapies. This study explores the cytotoxicity and genotoxicity mediated by oxidative stress of three endodontic materials that are widely used on HDPSCs: a mineral trioxide aggregate (MTA-Angelus white), an epoxy resin sealant (AH-Plus cement), and an MTA-based cement sealer (MTA-Fillapex)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28748049/effect-of-different-nickel-titanium-rotary-files-on-dentinal-crack-formation-during-retreatment-procedure
#9
Mehmet Çitak, Taha Özyürek
Background. The aim of this study was to compare the dentinal defects caused by Reciproc, TF Adaptive and ProTaper Next NiTi rotary file systems during the retreatment procedure. Methods. A total of 150 mandibular incisors with straight and single root canals were included in the present study. All the root canals were prepared up to an apical diameter 0.40 mm using stainless steel files. Thirty teeth were randomly stored as the negative control group. A total of 120 specimens were obturated with gutta-percha and AH Plus sealer using vertical compaction technique...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/28735788/effect-of-mineral-trioxide-aggregate-apical-plug-thickness-on-fracture-resistance-of-immature-teeth
#10
Ersan Çiçek, Neslihan Yılmaz, M Murat Koçak, Baran Can Sağlam, Sibel Koçak, Burcu Bilgin
INTRODUCTION: The aim of this study was to compare the fracture resistance of simulated immature teeth after using different thicknesses of mineral trioxide aggregate (MTA) apical plugs. METHODS: Fifty-two human maxillary anterior teeth were used. Five teeth were the positive control group; they were prepared using Peeso reamers to simulate immature teeth without any access cavity preparation. Access cavities of the 47 teeth were prepared, and the canals were instrumented with Peeso reamers...
July 20, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28729783/cytotoxic-evaluation-of-a-new-ceramic-based-root-canal-sealer-on-human-fibroblasts
#11
Sandra Chakar, Sylvie Changotade, Nada Osta, Issam Khalil
OBJECTIVES: The purpose of this study was to evaluate the cytotoxicity of a new bioceramic-based root canal sealer (BioMM) by direct and indirect contact with human fibroblasts and to compare it with a zinc oxide-eugenol sealer, the Pulp Canal Sealer-extended working time (PCS-EWT). MATERIALS AND METHODS: Cell viability was assessed through direct and indirect contact between human fibroblasts and sealer. Direct contact was performed at 24 h, whereas the indirect contact was performed at 24 and 48 h at different concentrations: 100%, 50%, and 25%...
April 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28706942/evaluation-of-the-sealing-ability-of-three-obturation-techniques-using-a-glucose-leakage-test
#12
Katarzyna Olczak, Halina Pawlicka
The aim of this study was to evaluate the sealing ability of three different canal filling techniques. Sixty-four roots of extracted human maxillary anterior teeth were prepared using ProTaper® rotary instruments. The specimens were then randomly divided into 3 experimental groups (n = 16) and 2 control groups (n = 8). The root canals were filled using cold lateral compaction (CLC group), continuous wave condensation technique using the Elements Obturation Unit® (EOU group), and ProTaper obturators (PT group)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28673491/assessment-of-volumetric-distortion-artifact-in-filled-root-canals-using-different-cone-beam-computed-tomographic-devices
#13
Berkan Celikten, Reinhilde Jacobs, Karla deFaria Vasconcelos, Yan Huang, Laura Ferreira Pinheiro Nicolielo, Kaan Orhan
INTRODUCTION: Artifacts in cone-beam computed tomographic (CBCT) imaging may compromise radiodiagnosis. Obturation materials for endodontic treatment may present with variable material density and thus also cause distinct artifact expression. The aim of this study was to assess the volume distortion artifact of root canal sealers using CBCT devices and micro-CT imaging as a reference. METHODS: Thirty single-root mandibular central incisors were used for this study...
June 30, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28658913/microgap-evaluation-of-novel-hydrophilic-and-hydrophobic-obturating-system-a-scanning-electron-microscope-study
#14
Vibha Hegde, Laxmi Suresh Murkey
INTRODUCTION: The purpose of an endodontic obturation is to obtain a fluid tight hermetic seal of the entire root canal system. There has been an evolution of different materials and techniques to achieve this desired gap free fluid tight seal due to presence of anatomic complexity of the root canal system. AIM: To compare the microgap occurring in root canals obturated with hydrophilic versus hydrophobic systems using scanning electron microscope. MATERIALS AND METHODS: Sixty extracted human single-rooted premolars were decoronated, instrumented using NiTi rotary instruments...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28658907/effect-of-5-chlorine-dioxide-irrigant-on-micro-push-out-bond-strength-of-resin-sealer-to-radicular-dentin-an-in-vitro-study
#15
Rejitha R Kamalasanan, Swapna V Devarasanahalli, Ranjini M Aswathanarayana, K Rashmi, Yashwanth Gowda, Roopa R Nadig
INTRODUCTION: Chlorine dioxide (ClO2) has been recently investigated as a possible root canal irrigant due to its broad spectrum of antimicrobial action, tissue dissolution and smear layer removal properties. Literature is scarce on the effect of chlorine dioxide irrigation on the resin sealer dentin bond strength. AIM: To compare 5% chlorine dioxide (ClO2) with or without Ethylene Diamine Tetra Acetic acid (EDTA) with 3% Sodium hypochlorite (NaOCl) and EDTA combination as endodontic irrigants on the adhesion of AH Plus sealer to radicular dentin using micro- Push out Bond Strength (µPBS) test...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28644564/methacrylate-based-root-canal-sealer-containing-chlorexidine-and-%C3%AE-tricalcium-phosphate
#16
Fabrício Mezzomo Collares, Vicente Castelo Branco Leitune, Fernando Freitas Portella, Paula Dapper Santos, Gabriela de Souza Balbinot, Luís Alberto Dos Santos, Clarissa Cavalcanti Fatturi Parolo, Susana Maria Werner Samuel
The aim of this study was to develop and to characterize a methacrylate-based root canal sealer containing chlorhexidine (CHX) and α-tricalcium phosphate (α-TCP). Experimental dual cure methacrylate-based sealer was produced containing 0, 2.5, or 5 wt% of CHX and 0, 25, or 50 wt% of α-TCP. Experimental sealers were evaluated based on flow, film thickness, radiopacity, degree of conversion (DC), degradation in water, pH and antibacterial activity. Flow ranged from 15.09 ± 0.11 to 17.47 ± 0.42 mm...
June 23, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28643130/retreatability-of-three-calcium-silicate-containing-sealers-and-one-epoxy-resin-based-root-canal-sealer-with-four-different-root-canal-instruments
#17
David Donnermeyer, Clarissa Bunne, Edgar Schäfer, Till Dammaschke
OBJECTIVES: The objective of the study was to compare the retreatability of three calcium silicate-containing sealers (BioRoot RCS, MTA Fillapex, Endo C.P.M.) and an epoxy resin-based sealer (AH Plus) with different root canal instruments (Hedström files, Reciproc R40, Mtwo retreatment file R 25/.05 + Mtwo 40/.06, and F6 SkyTaper) concerning sealer remnants and retreatment time. MATERIALS AND METHODS: Root canals of 192 teeth were instrumented with Reciproc R40...
June 22, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28638549/antibacterial-activity-of-different-root-canal-sealers-against-enterococcus-faecalis
#18
Claudio Poggio, Federico Trovati, Matteo Ceci, Marco Colombo, Giampiero Pietrocola
BACKGROUND: The aim of the present study was to compare in vitro the antimicrobial activity of different root canal sealers against Enterococcus faecalis, prior and subsequent to setting. MATERIAL AND METHODS: Agar diffusion test (ADT) was used for evaluating the antibacterial activity of non-set sealer while the direct contact test (DCT) was used for after setting. RESULTS: ADT: Except for TotalFill BC Sealer all the others sealers tested showed antibacterial activity...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28638547/push-out-bond-strength-of-different-endodontic-obturation-material-at-three-different-sites-in-vitro-study
#19
Pankaj Mishra, Anjna Sharma, Sunil Mishra, Manas Gupta
BACKGROUND: The key to success of any root canal therapy is adequate obturation of the prepared root canal space. Root canal sealers are not dimensionally stable and might dissolve partially over a period of time. The objective of this in vitro study is to evaluate the push-out bond strength to intraradicular dentin of two endodontic obturation materials. MATERIAL AND METHODS: Forty extracted single rooted permanent teeth were used. Canals orifice was explored, teeth were instrumented...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28631551/apical-microleakage-in-root-canals-obturated-with-2-different-endodontic-sealer-systems-in-canine-teeth-of-dogs
#20
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
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