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https://www.readbyqxmd.com/read/29344806/comparison-of-two-observational-methods-scanning-electron-and-confocal-laser-scanning-microscopies-in-the-adhesive-interface-analysis-of-endodontic-sealers-to-root-dentine
#1
Maybell Tedesco, Marcelo Carvalho Chain, Eduardo Antunes Bortoluzzi, Lucas da Fonseca Roberti Garcia, Ana Maria Hecke Alves, Cleonice Silveira Teixeira
OBJECTIVES: To compare the accuracy of confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM) during the analysis of the adhesive interface integrity and intratubular penetration of root canal sealers to radicular dentine. MATERIALS AND METHODS: Twenty roots of human maxillary incisors were prepared and distributed into two groups (n = 10), followed by filling with gutta-percha and Endofill (G1) or AH Plus (G2). After 7 days, roots were sectioned and analyzed under CLSM and SEM...
January 17, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29340481/evaluation-of-the-sealing-ability-of-different-root-canal-sealers-a-combined-sem-and-micro-ct-study
#2
Yan Huang, Kaan Orhan, Berkan Celikten, Ayşe Işıl Orhan, Pelin Tufenkci, Semra Sevimay
OBJECTIVE: The purpose of this study was to analyze the ability of multiple compounds to seal the dental tubules using scanning electron microscopy (SEM) and micro-computed tomogra-phy (micro-CT). MATERIAL AND METHODS: Twenty-four single-root human mandibular premolars were selected and instrumented with nickel-titanium rotary file and the final file size was #40/06. They were then randomly allocated into 2 groups, and all samples were filled with single cone gutta-percha (#40/06) and one of the tested sealers (AH Plus and EndoSequence BC sealers)...
January 15, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29326513/an-in-vitro-comparison-of-pushout-bond-strength-of-resilon-with-metaseal-and-ah-plus-sealers
#3
Priyanka Sarangi, Rashmirekha Mallick, Sukanta Kumar Satapathy, Gaurav Sharma, Fathima Kouser, Satyajit Mohapatra
Aim: The aim of this study is to evaluate and compare the pushout bond strengths of Resilon with two different sealers: Resilon/MetaSEAL (methacrylate based) and Resilon/AH Plus (an epoxy resin-based sealer). Materials and Methods: Forty single canal anterior teeth were decoronated at cementoenamel junction and standardized to 10 ± 1 mm length. Working length was determined followed by biomechanical preparation. Then, the specimens were randomly assigned into two groups of 20 teeth each based on the sealer used with Resilon...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29297560/influence-of-root-canal-filling-techniques-on-sealer-penetration-and-bond-strength-to-dentin
#4
Luciana Martins Domingues de Macedo, Yara Silva-Sousa, Silvio Rocha Corrêa da Silva, Samantha Schaffer Pugsley Baratto, Flares Baratto-Filho, Fuad Jacob Abi Rached-Júnior
The influence of root canal filling techniques on the penetration of AH Plus into dentinal tubules was evaluated using confocal laser scanning microscopy (CLSM) and the impact on the bond strength of the filling material on the root dentin was evaluated using the push-out test. Roots of the maxillary central incisors (n=40) were prepared with ProTaper Universal and assigned to four groups: lateral condensation, vertical compaction, modified Tagger hybrid and single cone. After root canal filling with gutta-percha and AH Plus, along with the addition of 0...
May 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29259360/influence-of-root-canal-obturation-using-gutta-percha-with-three-different-sealers-on-root-reinforcement-of-endodontically-treated-teeth-an-in-vitro-comparative-study-of-mandibular-incisors
#5
Pravin Patil, Kulwinder Singh Banga, Ajinkya M Pawar, Sandeep Pimple, Raguram Ganeshan
Aim: The purpose of this in vitro study was to evaluate the vertical force required to fracture mandibular incisor teeth, obturated using gutta-percha with three different sealers. Materials and Methods: Seventy-five extracted mandibular incisors with intact and fully formed apices, exhibiting single root and canal were acquired. The teeth were decoronated obtaining a root segments of 15 mm and were divided into five groups (n = 15). Group 1: left uninstrumented and unfilled (negative control)...
July 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29243186/effect-of-root-canal-sealers-on-human-periodontal-ligament-fibroblast-viability-ex-vivo-study
#6
Grzegorz Szczurko, Małgorzata Pawińska, Elżbieta Łuczaj-Cepowicz, Anna Kierklo, Grażyna Marczuk-Kolada, Adam Hołownia
The aim of the study was to compare ex vivo the toxic effects of six root canal sealers immediately after mixing or setting on human periodontal ligament fibroblasts (HPdLF). Freshly mixed (I group) or set (allowed to dry for 24 h) (II group) specimens of AH Plus Jet (AH), Apexit Plus (AP), MTA Fillapex (FL), GuttaFlow (GF), MetaSEAL Soft (META), and Tubli-Seal (TS) were prepared. HPdLF were exposed for 24 h to the specimens. 3-(4,5-dimethylthiazolo-2-yl)-2,5-diphenyltetrazolium bromide assay was used to examine the effect of the root canal sealers on mitochondrial metabolic activity...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29238376/the-effect-of-different-root-canal-sealers-on-the-fracture-resistance-of-endodontically-treated-teeth-in-vitro-study
#7
Anuve Hrishi Phukan, Shivani Mathur, Meera Sandhu, Vinod Sachdev
Background: The aim of this study was to compare the in vitro effects of four different root canal sealers on the fracture resistance of endodontically treated teeth. Materials and Methods: Seventy-five freshly extracted human mandibular premolars were used for the study. Teeth were divided into five groups based on type of root canal sealers used. Gutta-percha was used for all the samples: Group I: AH Plus root canal sealer, Group II: MTA Fillapex root canal sealer, Group III: Apexit root canal sealer, Group IV: Conventional zinc oxide-eugenol (ZOE) sealer, Group V: Control (unobturated teeth)...
November 2017: Dental Research Journal
https://www.readbyqxmd.com/read/29232874/alkaline-material-effects-on-roots-of-teeth
#8
REVIEW
Sowmya Shetty, Sam L Kahler, Bill Kahler
The aim of this review was to identify and analyse all studies related to the effects of alkaline materials used in dentistry on roots of teeth. The first part of the review focused on mechanical property alterations of root dentine due to sodium hypochlorite (SH) used as an irrigant solution based on MeSH (Medical Subject Heading) terms from a previous study by Pascon et al in 2009. The second part reviewed literature on calcium hydroxide (CH), mineral trioxide aggregate (MTA) and other alkaline materials used as root canal dressings or filling materials...
December 10, 2017: Materials
https://www.readbyqxmd.com/read/29229460/effect-of-low-surface-tension-edta-solutions-on-the-bond-strength-of-resin-based-sealer-to-young-and-old-root-canal-dentin
#9
Cigdem Güzel, Emel Uzunoglu, Hatice Dogan Buzoglu
INTRODUCTION: The purpose of this study was to evaluate the effect of low-surface tension EDTA solutions on the push-out bond strength of resin-based sealer to young and old root canal dentin. METHODS: Root canals from 64 (n = 32 age <30 years old and n = 32 >60 years old) extracted, decoronized, single-rooted human teeth were prepared with ProTaper rotary instruments (Dentsply Maillefer, Ballaigues, Switzerland) up to size F4 using 3 mL 2.5% sodium hypochlorite (NaOCl) between each file...
December 8, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29229455/evaluation-of-3-different-retreatment-techniques-in-maxillary-molar-teeth-by-using-micro-computed-tomography
#10
Funda Yılmaz, Cemre Koç, Kıvanç Kamburoğlu, Mert Ocak, Ferhat Geneci, M Bora Uzuner, Hakan Hamdi Çelik
INTRODUCTION: Nonsurgical retreatment procedure involves the complete removal of the previous filling material to allow thorough instrumentation, disinfection, and refilling of root canal system. We aimed to determine the residuals of the root-filling material by using 3 different retreatment techniques with the aid of micro-computed tomography. METHODS: Thirty extracted human maxillary molar teeth were included. All root canals were also obturated with F2 ProTaper single cones and AH Plus sealer...
December 8, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29225639/the-effect-of-bc-sealer-ah-plus-and-dorifill-on-push-out-bond-strength-of-fiber-post
#11
Fatemeh Dibaji, Elahe Mohammadi, Farzaneh Farid, Fatemeh Mohammadian, Pegah Sarraf, Mohammad Javad Kharrazifard
Introduction: Dentinal canal walls are in direct contact with endodontic sealers prior to post space preparation and luting cements after post space preparation. This direct contact may affect the bond strength of intraradicular posts to root dentin. This study aimed to assess the effect of three different sealers on the bond strength of fiber posts to root dentin. Methods and Materials: The canals of 56 extracted single-rooted human premolars after selection and decoronation were prepared...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29217962/spectrophotometric-evaluation-of-crown-fragment-a-year-after-reattachment-using-fiber-reinforced-post-a-case-report
#12
Fundaoğlu Funda Küçükekencı, Ahmet Serkan Küçükekencı
Background: Crown fracture is the most common type of fracture and frequently affects the anterior teeth. Crown fractures have been treated in several ways depending on the location and kind of fracture. This case emphasizes reattachment of fractured fragments using fiber-reinforced post. Also this case report underlines the related aesthetic concerns of reattaching of the fractured fragment. Case Report: Intraorally, examination revealed a complicated crown-root fracture of the left maxillary central (#21) and lateral incisor (#22)...
September 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/29211285/intradentinal-antimicrobial-action-and-filling-quality-promoted-by-ultrasonic-agitation-of-epoxy-resin-based-sealer-in-endodontic-obturation
#13
Murilo Priori Alcalde, Clóvis Monteiro Bramante, Rodrigo Ricci Vivan, Pablo Andrés Amorso-Silva, Flaviana Bombarda de Andrade, Marco Antonio Hungaro Duarte
MATERIAL AND METHODS: The aim of this study was evaluate the influence of ultrasonic activation (UA) of AH Plus to improve canal and isthmus filing, and analyse the antimicrobial effect against Enterococcus faecalis within dentinal tubules. Thirty mesial roots of mandibular first molars were selected and divided into 2 groups (n = 15): with and without UA of the sealer. Then the root canals were filled by using the single cone technique, and the specimens were sectioned at 2, 4 and 6 mm from the apex for stereomicroscope and confocal laser scanner microscopy (CLSM) analysis...
November 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29208787/assessment-of-marginal-adaptation-and-sealing-ability-of-root-canal-sealers-an-in-vitro-study
#14
Vimal Remy, Vineesh Krishnan, Tisson V Job, Madhavankutty S Ravisankar, C V Renjith Raj, Seena John
AIM: This study aims to compare the marginal adaptation and sealing ability [mineral trioxide aggregate (MTA)-Fillapex, AH Plus, Endofill sealers] of root canal sealers. MATERIALS AND METHODS: In the present study, the inclusion criteria include 45 single-rooted extracted mandibular premolar teeth, with single canal and complete root formation. The sectioning of the samples was done at the cementoenamel junction using a low-speed diamond disc. Step-back technique was used to prepare root canals manually...
December 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29205666/evaluation-of-17-edta-and-10-citric-acid-in-smear-layer-removal-and-tubular-dentin-sealer-penetration
#15
Ricardo Machado, Lucas da Fonseca Roberti Garcia, Ulisses Xavier da Silva Neto, Antônio de Miranda da Cruz Filho, Ricardo Gariba Silva, Luiz Pascoal Vansan
The purpose of this study was to compare the efficacy of different chelating solutions (17% EDTA and 10% citric acid) on the smear layer removal, and their effect on tubular dentin sealer penetration. Sixty root canals were prepared and distributed into four groups (n = 15) according to the final irrigation protocol: G1, final irrigation with 2.5 mL of distilled water; G2, final irrigation with 2.5 mL of 2.5% sodium hypochlorite solution; G3, final irrigation with 2.5 mL of 17% EDTA; and G4, final irrigation with 2...
December 5, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29199333/-study-on-the-sealing-ability-of-biological-root-canal-sealer-iroot-sp-in-root-canal-filling
#16
Ning Zhang, Xin Li, Lei-Ying Miao, Juan Wu, Chao Liu, Wei-Dong Yang
PURPOSE: To investigate the sealing ability of biological root canal sealer iRoot SP in over-root canal filling. METHODS:After completion of root canal preparation, 48 extracted human single-canal teeth were used. The ratio of mesio-distal root canal diameter to bucco-lingual diameter was less than 0.5. The teeth were randomly divided into group A, B and C. The root canals were obturated with root canal filling agent (group A), AH Plus (group B) and iRoot SP (group C), respectively; the apical leakage was evaluated by dye penetration method and transparent teeth technique...
August 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29195822/effect-of-crosslinkers-on-bond-strength-stability-of-fiber-posts-to-root-canal-dentin-and-in-situ-proteolytic-activity
#17
Juliana R L Alonso, Fernanda G Basso, Débora L S Scheffel, Carlos Alberto de-Souza-Costa, Josimeri Hebling
STATEMENT OF PROBLEM: Improved stability of the adhesive interface can be obtained using crosslinkers. However, research on the use of crosslinkers in root dentin is lacking. PURPOSE: The purpose of this in vitro study was to evaluate the effect of crosslinkers on the proteolytic activity of root dentin and on the bond strength of resin-cemented fiber posts. MATERIAL AND METHODS: Single root canals were obtained from premolars (n=48) and endodontically treated before being divided into 4 groups: deionized water (control), 0...
November 29, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29167717/composition-and-physicochemical-properties-of-calcium-silicate-based-sealers-a-review-article
#18
REVIEW
Farnaz Jafari, Sanaz Jafari
Background: Recently a new generation of endodontic sealers has been developed based on calcium silicate as MTA Fillapex, Endoseal MTA, Total Fill BC Sealer, EndoSequence BC Sealer, iRoot SP, Endo CPM sealer, MTA-Angelus and ProRoot Endo Sealer. A review of literature was conducted to discuss the composition, physicochemical properties, and clinical perspectives of calcium silicate based sealers. Material and Methods: A literature search was conducted in PubMed and web of knowledge databases with appropriate MeSh terms and keywords...
October 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29167707/solubility-and-ph-of-bioceramic-root-canal-sealers-a-comparative-study
#19
Claudio Poggio, Alberto Dagna, Matteo Ceci, Maria-Vittoria Meravini, Marco Colombo, Giampiero Pietrocola
Background: This study compared the solubility and the pH of different root canal sealers in vitro. Material and Methods: BioRoot™RCS, TotalFill BC Sealer, MTA Fillapex, SealapexTM, AH Plus, EasySeal, Pulp Canal Sealer™ and N2 were tested. Similar specimens were prepared using ring molds with an internal diameter of 20 ± 0,1 mm and a height of 1,5 ± 0,1 mm and digitally weighted to register the mass of each specimen before and after immersion in distilled water...
October 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29160804/residual-endodontic-filling-material-after-post-space-preparation-a-confocal-microscopic-study
#20
Yu-Yao Teoh, Laurence J Walsh
This laboratory study assessed removability of endodontic alkaline cements and resin sealers using coronal cross-sectional slices of roots with single canals. Materials were labelled with 0.1% (w/w) sodium fluorescein prior to mixing so that confocal microscopy could be used to quantify material remaining on the walls of post spaces, to assess cleanliness. Roots of extracted teeth were prepared using rotary NiTi instruments then obturated using lateral condensation with gutta percha and epoxy resin sealers (AH-Plus™ or Zirmix™), or were filled by injecting mineral trioxide aggregate (MTA) cement (GC Nex™ MTA or MTAmix™) or a hard-setting calcium hydroxide cement (Supercal™)...
November 21, 2017: Materials
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