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https://www.readbyqxmd.com/read/27866000/effectiveness-of-final-decontamination-protocols-against-enterococcus-faecalis-and-its-influence-on-bond-strength-of-filling-material-to-root-canal-dentin
#1
Matheus Albino Souza, Daniel Dalla Lana, Ezequiel Gabrielli, Marlos Barbosa Ribeiro, Daniela Cristina Miyagaki, Doglas Cecchin
AIM: The aim of this study was to evaluate the effectiveness of final decontamination protocols against Enterococcus faecalis and their influence on bond strength of filling material to root canal dentin. MATERIAL AND METHODS: Ninety root canals were enlarged with ProTaper system and inoculated with E. faecalis for 15 days. Sixty samples were randomly divided into six groups (n=10) and subjected to following protocols: G1-distilled water(control), G2-2% chlorhexidine, G3-QMix, G4-6...
November 16, 2016: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/27847138/a-comparative-evaluation-of-the-effect-of-the-addition-of-pachymic-acid-on-the-cytotoxicity-of-4-different-root-canal-sealers-an-in%C3%A2-vitro-study
#2
Senthamilselvan Arun, Vidhya Sampath, Sekar Mahalaxmi, Kothandaraman Rajkumar
INTRODUCTION: Root canal sealers exhibit varying degrees of cytotoxicity to periapical tissues. This in turn results in inflammation, delayed wound healing, and even bone resorption. This study aimed to explore the effect of the addition of an antioxidant like pachymic acid on the cytotoxicity of 4 root canal sealers, namely, Tubliseal (Kerr, Romulus, MI), a zinc oxide eugenol-based sealer; AH Plus (Dentsply De Trey GmbH, Konstanz, Germany), an epoxy resin-based sealer; Sealapex (Kerr), a calcium hydroxide-based sealer; and EndoREZ (Ultradent Products, South Jordan, UT), a methacrylate resin-based sealer...
November 12, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27834415/antimicrobial-influence-of-different-root-canal-filling-techniques-in-experimentally-infected-human-root-canals
#3
Christian Tennert, Tilman Schurig, Ali Al-Ahmad, Sabrina Lydia Strobel, Andrej M Kielbassa, Karl-Thomas Wrbas
OBJECTIVE: The aim of the present study was to evaluate the antimicrobial influence of different root canal filling techniques using gutta-percha and an epoxy resin-based sealer in experimentally infected root canals of extracted human teeth. METHOD AND MATERIALS: In total, 96 intact sterilized, permanent human anterior teeth and premolars with single patent root canals were prepared and infected with a clinical isolate of Enterococcus faecalis. After 72 hours, all root canals were sampled using three sterile paper points...
November 10, 2016: Quintessence International
https://www.readbyqxmd.com/read/27829745/a-comparison-of-the-sealing-ability-of-various-temporary-restorative-materials-to-seal-the-access-cavity-an-in-vitro-study
#4
Aji Markose, Ramesh Krishnan, Maya Ramesh, Shishir Singh
INTRODUCTION: In multiple-appointment root canal treatment, a temporary filling material is used to seal the access cavity between visits. The primary function of this material is to prevent the contamination of the root canal system by fluids, organic debris, and bacteria from the oral cavity. MATERIAL AND METHODS: A total of fifty extracted noncarious unrestored human maxillaryanterior teeth with intact crowns and roots were selected The canals were instrumented using stepback technique and sodium hypochlorite (3%) and hydrogen peroxide (3%) were used as irrigants for each specimen alternatively...
October 2016: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/27776882/zinc-oxide-nanoparticles-enhance-physicochemical-characteristics-of-grossman-sealer
#5
Marco Aurélio Versiani, Fuad Jacob Abi Rached-Junior, Anil Kishen, Jesus Djalma Pécora, Yara Terezinha Silva-Sousa, Manoel Damião de Sousa-Neto
INTRODUCTION: Metallic antibacterial nanoparticles have been shown to provide distinct antibacterial advantage and antibiofilm efficacy when applied in infected root canals. The purpose of this study was to evaluate the influence of incorporating zinc oxide nanoparticles (ZnO-Np) on the physicochemical properties of Grossman sealer. METHODS: Grossman sealer was prepared according to its original formula. Additionally, 4 experimental sealers were prepared by replacing the zinc oxide component of the powder with ZnO-Np (average size of 20 nm) in different amounts (25%, 50%, 75%, and 100%)...
October 21, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27776877/influence-of-warm-vertical-compaction-technique-on-physical-properties-of-root-canal-sealers
#6
Wei Qu, Wei Bai, Yu-Hong Liang, Xue-Jun Gao
INTRODUCTION: The aim of this study was to evaluate the influence of warm vertical compaction on the physical properties of root canal sealers. METHODS: The physical properties of 4 sealers (zinc oxide -eugenol [ZOE], AH Plus [Dentsply International, York, PA], RoekoSeal [Roeko/Coltene/Whaledent, Langenau, Germany], and iRoot SP [Innovative Bioceramix, Vancouver, Canada]) were tested. The setting time and flow of these sealers were measured at standard and high temperatures using ISO 6876 (2012) specifications...
October 21, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27769676/material-properties-of-a-tricalcium-silicate-containing-a-mineral-trioxide-aggregate-containing-and-an-epoxy-resin-based-root-canal-sealer
#7
Raquel-Kathrin Prüllage, Kent Urban, Edgar Schäfer, Till Dammaschke
INTRODUCTION: The aim was to compare the solubility, radiopacity, and setting times of a tricalcium silicate-containing (BioRoot RCS; Septodont, St Maur-des-Fossés, France) and a mineral trioxide aggregate-containing sealer (MTA Fillapex; Angelus, Londrina, Brazil) with an epoxy resin-based sealer (AH Plus; Dentsply DeTrey, Konstanz, Germany). METHODS: Solubility in distilled water, radiopacity, and setting time were evaluated in accordance with ISO-6876:2012. The solubility was also measured after soaking the materials in phosphate-buffered saline buffer (PBS)...
October 18, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27752173/-effect-of-root-canal-sealers-on-biocompatibility-of-human-periodontal-ligament-cells
#8
J Hu, X Y Zou, H Zhuang, X J Gao
OBJECTIVE: To compare the effects of three root canal sealers with respect to time on biocompatibility of human periodontal ligament cells (hPDLCs).The sealers included zinc oxide and eugenol based sealers (ZOE), epoxy resin sealers (ERS) and silicone based sealers (SBS). METHODS: hPDLCs were primarily cultured,with the method combining of tissue explant and enzymatic digestion. The cells were then exposed to different extract fluids: (1) ZOE extracted for 24 h group ;(2) ZOE extracted for 1 week group;(3)ZOE extracted for 2 weeks group;(4) ERS extracted after 24 h group; (5) ERS extracted after 1 week group; (6) ERS extracted after 2 weeks group; (7) SBS extracted after 24 h group; (8) SBS extracted after 1 week group; (9) SBS extracted after 2 weeks group; (10) Dulbecco modified Eagle's medium/F12 (DMEM/F12) as negative control group...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27716153/evaluation-of-bond-strength-of-various-epoxy-resin-based-sealers-in-oval-shaped-root-canals
#9
Fatih Cakici, Elif Bahar Cakici, Kadir Tolga Ceyhanli, Ersan Celik, Funda Fundaoglu Kucukekenci, Arif Onur Gunseren
BACKGROUND: The aim of this study was to evaluate the bond strength of AH plus, Acroseal, and Adseal to the root canal dentin. METHODS: A total of 36 single-rooted, mandibular premolar teeth were used. Root canal shaping procedures were performed with ProTaper rotary instruments (Dentsply Maillefer) up to size F4. The prepared samples were then randomly assembled into 3 groups (n = 12). For each group, an ultrasonic tip (size 15, 0.02 taper) which was also coated with an epoxy resin based sealer and placed 2 mm shorter than the working length...
September 30, 2016: BMC Oral Health
https://www.readbyqxmd.com/read/27706822/efficiency-and-apical-extrusion-of-debris-a-comparative-ex%C3%A2-vivo-study-of-four-retreatment-techniques-in-severely-curved-root-canals
#10
I Kaşıkçı Bilgi, I Köseler, P Güneri, M Hülsmann, M K Çalışkan
AIM: To compare the amount of apically extruded debris and of remaining filling material during the removal of root canal filling material using three rotary NiTi retreatment instruments or Hedström files. METHODOLOGY: Ninety-six severely curved human molars of both jaws were selected. The root canals were prepared to size X2 (tip size 25, .06 taper) using the ProTaper Next system (Dentsply Sirona, Ballaigues, Switzerland), filled with gutta-percha and AH Plus sealer (Dentsply De Trey, Konstanz, Germany) and then randomly divided into four experimental groups (n = 24 each) with two subgroups of maxillary and mandibular teeth each...
October 5, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27703601/in-vitro-evaluation-of-efficacy-of-different-rotary-instrument-systems-for-gutta-percha-removal-during-root-canal-retreatment
#11
Mercy Joseph, Jyoti Ahlawat, Amit Malhotra, Murali Rao, Abhimanyu Sharma, Sangeeta Talwar
BACKGROUND: Complete removal of old filling material during root canal retreatment is fundamental for predictable cleaning and shaping of canal anatomy. Most of the retreatment methods tested in earlier studies have shown inability to achieve complete removal of root canal filling. Therefore the aim of this investigation was to assess the efficacy of three different rotary nickel titanium retreatment systems and Hedstrom files in removing filling material from root canals. MATERIAL AND METHODS: Sixty extracted mandibular premolars were decoronated to leave 15 mm root...
October 2016: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/27689844/micro-ct-assessment-of-dentinal-micro-cracks-after-root-canal-filling-procedures
#12
G De-Deus, F G Belladonna, E J N L Silva, E M Souza, J C A Carvalhal, R Perez, R T Lopes, M A Versiani
AIM: To evaluate the frequency of dentinal micro-cracks after root canal filling procedures with GuttaCore (GC), cold lateral compaction (CLC) and warm vertical compaction (WVC) techniques in mandibular molars using micro-computed tomographic analysis. METHODOLOGY: Thirty mesial roots of mandibular molars, with a type II Vertucci's canal configuration, were prepared to working length with a Reciproc R40 instrument and randomly assigned to one of 3 experimental groups (n = 10), according to the technique used for root filling: GC, CLC or WVC...
September 30, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27688421/cytotoxicity-of-two-bioactive-root-canal-sealers
#13
Anja Baraba, Sonja Pezelj-Ribaric, Marija Roguljić, Ivana Miletic
OBJECTIVE: The aim of this study was to investigate the cytotoxicity of two different bioactive root canal sealers: one based on mineral trioxide aggregate, MTA Fillapex (Angelus, Solucoes Odontologicas, Londrina, PR, Brazil), and the other based on bioceramics, Endosequence BC Sealer (Brasseler, Savannah, Georgia, USA), in culture of mouse L929 fibroblasts. MATERIALS AND METHODS: Mouse fibroblasts (L929), obtained from subcutaneous connective tissue of mouse line C3Hf, were cultivated in plastic culture flasks in an incubator at 37şC, with 5% CO2 and 90% humidity...
March 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/27681400/new-fluoride-mi-varnish-as-root-canal-sealer-an-in-vitro-analysis-of-bacterial-leakage
#14
Dhanu G Rao, Malay Vishnuprasad Trivedi, Raghavendra Havale, S P Shrutha
AIMS: The aim of the present study was to evaluate and compare the sealing ability of root canal obturation after the application of fluoride varnish (MI Varnish) containing 5% sodium fluoride and casein phosphopeptide-amorphous calcium phosphate, fluoride varnish, and AH Plus and AH-Plus as root canal sealer by bacterial penetration test. MATERIALS AND METHODS: Root canals of 65 single-rooted and single-canalled teeth were prepared. They were divided into three experimental groups (n = 15) and two control groups (n = 10)...
October 2016: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/27680035/epigallocatechin-3-gallate-increased-the-push-out-bond-strength-of-an-epoxy-resin-sealer-to-root-dentin
#15
Suthida Pheenithicharoenkul, Anchana Panichuttra
This study aimed to investigate the effect of epigallocatechin-3-gallate (EGCG) from green tea extract on the push out bond strength of an epoxy resin sealer to root dentin. Seventy single root canal premolars were decoronated and instrumented. The roots were randomly irrigated with different final irrigation protocols (n=16): 17%EDTA (EDTA), 17%EDTA followed by 2.5%NaOCl (EDTA+NaOCl), 17%EDTA followed by 1 mg/mL EGCG (EDTA+EGCG) and 1 mg/mL EGCG (EGCG). Other six root canals were received only 2.5%NaOCl as a control group...
December 1, 2016: Dental Materials Journal
https://www.readbyqxmd.com/read/27665971/degree-of-conversion-of-a-self-adhesive-endodontic-sealer-when-used-as-bulk-material
#16
Silvia C Pérez-González, Victoria Bolaños-Carmona, María M Pérez-Gómez, Santiago González-López
This study tested the null hypothesis that the opacity of RealSeal SE (RSSE) sealer makes light-curing inefficient, while the degree of conversion (DC) is similar regardless of curing method. Fourteen uniradicular teeth were sectioned at 15 mm from the apex. Root canals were instrumented using the Reciproc file system, bulk-filled with RSSE, and divided randomly into two groups (dual-cure or self-cure). DC was determined by micro-Raman spectroscopy at 24 h, 48 h, and 1 week after filling, at 6, 9, and 12 mm from the coronal end...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/27660159/a-clinical-study-on-single-visit-root-canal-retreatments-on-consecutive-173-patients-frequency-of-periapical-complications-and-clinical-success-rate
#17
Tan Firat Eyuboglu, Kezban Olcay, Mutlu Özcan
OBJECTIVES: This study assessed the outcome measures of single-visit root canal retreatments and frequency of periapical complications considering preoperative, intraoperative and postoperative factors. MATERIALS AND METHODS: Between November 2011 and December 2012, in 173 patients, a total of 234 endodontically treated teeth were retreated in a single appointment by one experienced endodontist. Five teeth were extracted and 119 teeth were lost to follow-up yielding to 110 teeth (47 %) to be examined by two calibrated examiners for the outcome of healing (periapical index score-PAI ≤2; no signs or symptoms) or non-healing (presence of apical periodontitis-PAI >2; signs or symptoms)...
September 22, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27659075/effects-of-the-residues-from-the-endodontic-sealers-on-the-longevity-of-esthetic-restorations
#18
Matheus C Bandeca, Milton C Kuga, Ana Cs Diniz, Keren Cf Jordão-Basso, Mateus R Tonetto
The substances used in the root canal treatment, especially sodium hypochlorite solution and oxidant agents, can negatively interfere on the bond strength of the adhesive systems to dentin and on the dental crowns fracture resistance.(1,2).
2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27651886/the-sealing-ability-of-novel-kryptonite-adhesive-bone-cement-as-a-retrograde-filling-material
#19
İsmail Uzun, Cangül Keskin, Buğra Güler
Background. This study evaluated the ability of Kryptonite bone cement in sealing retrograde cavities. Methods. The root canals of one hundred extracted human maxillary incisor teeth were instrumented up to master apical file #40 using Mtwo rotary system and obturated with gutta-percha and AHPlus sealer by cold lateral compaction method. The specimens were assigned to one control group and four experimental groups based on the retrograde filling materials (n=20). The specimens were immersed in 0.5% Rhodamine B solution for 48h...
2016: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/27643496/-a-phd-completed-4-interactions-between-root-canal-irrigants-sealers-and-dentin
#20
P Neelakantan, H Shemesh, P Wesselink
In the field of endodontology, antibacterial activity of irrigants has been investigated many times. The influence of these solutions on the bonding of root canal sealers, however, has hardly been studied. The objective of this doctoral research was to determine the interactions between root canal sealers and root dentin, and to determine the influence of irrigants on these interactions. The various studies revealed that irrigants have an influence on the bonding of sealers based on epoxy resin, calcium hydroxide, silicones and calcium silicate...
September 2016: Nederlands Tijdschrift Voor Tandheelkunde
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