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https://www.readbyqxmd.com/read/28819809/effect-of-synthetic-and-natural-derived-novel-endodontic-irrigant-solutions-on-mechanical-properties-of-human-dentin
#1
Doglas Cecchin, Vitória Soares Giaretta, Bérove Granella Cadorin, Matheus Albino Souza, Cristina de Mattos Pimenta Vidal, Ana Paula Farina
This study aimed to evaluate the effects of different synthetic and natural-derived root canal irrigants (6% sodium hypochlorite [NaOCl], 6% calcium hypochlorite [Ca(OCl)2] and 6.5% grape seed extract [GSE]) on dentin mechanical properties (flexural strength, ultimate tensile strength [UTS] and fracture resistance). Rectangular-shaped beams and hourglass-shaped sections obtained from mid-coronal and root dentin were treated with 6% NaOCl, 6% Ca(OCl)2 or 6.5% GSE for 30 min. The irrigant solutions were replaced every 5 min...
August 17, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28808456/an-in-vitro-comparison-of-apically-extruded-debris-using-reciproc-protaper-universal-neolix-and-hyflex-in-curved-canals
#2
Hossein Labbaf, Kiumars Nazari Moghadam, Shahriar Shahab, Mahshid Mohammadi Bassir, Mohammad Amin Fahimi
INTRODUCTION: As a consequence of root canal preparation, dentinal chips, irrigants and pulp remnants are extruded into preradicular space. This phenomenon may lead to post endodontic flare-ups. The purpose of this study was to compare the amount of extruded debris with four endodontic NiTi engine-driven systems. METHODS AND MATERIALS: Sixty mesiobuccal roots of maxillary molars with 15-30˚ curvature were divided randomly into four groups (n=15). Each group was instrumented up to apical size of 25 using Reciproc, ProTaper Universal, Neolix and Hyflex...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808455/effect-of-nickel-chromium-and-non-precious-gold-color-alloy-cast-posts-on-fracture-resistance-of-endodontically-treated-teeth
#3
Fatemeh Gholami, Parisa Kohani, Shima Aalaei
INTRODUCTION: Root canal-treated teeth are weaker than vital teeth and are more susceptible to fractures. Therefore, special precautions should be adhered to, such as the use of various types of cast or prefabricated posts. Regarding the effect of post material on fracture resistance of teeth, the aim of this in vitro study was to evaluate the effect of non-precious gold color alloy (NPG) and nickel-chrome (Ni-Cr) cast posts on resistance of endodontically treated teeth. METHODS AND MATERIALS: In this study, 30 freshly extracted single-rooted premolar teeth were randomly divided into two groups...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28782855/effect-of-maleic-acid-on-the-bond-strength-of-fibre-posts-to-root-dentine
#4
Fan Fan, Muhammad Ibrahim, Panpan Dai, Yixin Mao, Bing He, Gang Wu, Jianfeng Ma, Shengbin Huang
The aim of this study was to evaluate the effect of maleic acid (MA) on both the bond strength of fibre post to root dentine and smear layer removal after post space preparation. Sixty, single-canal premolars were endodontically treated and randomly assigned to four groups: group 1 [0.9% saline solution (control]); group 2 [2.5% sodium hypochlorite (NaOCl)]; group 3 [17% ethylenediaminetetraacetic acid (EDTA) followed by 2.5% NaOCl]; and group 4 (7% MA followed by 2.5% NaOCl). Self-adhesive resin cement was used to test the adhesion of a glass-fibre post to the root dentine through a micropush-out test...
August 7, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28764283/fabrication-and-appraisal-of-poly-lactic-co-glycolic-acid-moxifloxacin-nanoparticles-using-vitamin-e-tpgs-a-potential-intracanal-drug-delivery-agent
#5
Hardik Makkar, Gaurav Patri
INTRODUCTION: Nanotechnology is gaining momentum in the search for ideal biomaterials by dental researchers. The expansible nature of Endodontology deems exploration, learning and scrutinizing newer avenues which have the potential to be applied and investigated. The popularity of polymers as drug delivery vehicles has opened avenues for their application in the root canal system. This study utilized application of biodegradable polymers as potential drug delivery vehicles against Enterococcus faecalis, one of the main reasons for post treatment disease...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28750753/photodynamic-therapy-with-high-power-led-mediated-by-erythrosine-eliminates-enterococcus-faecalis-in-planktonic-forms
#6
Alberto Sabin Moura Borba, Sângela Maria da Silva Pereira, Mellyna Cavalcante Mendes Borba, Marco Aurélio Benini Paschoal, Rudys Rodolfo de Jesus Tavarez, Claudia de Castro Rizzi, Meire Coelho Ferreira, Etevaldo Matos Maia Filho
BACKGROUND: The failure of endodontic treatment is linked to the presence of microorganisms, particularly Enterococcus faecalis, in the root canals. This study evaluated the effectiveness of photodynamic therapy (PDT) using erythrosine irradiated by a high-power curing light on a planktonic suspension culture of E. faecalis. METHODS: Bacterial suspensions of E. faecalis were adjusted and then mixed in a 1:1 proportion, in triplicate, in treatment groups by varying the length of irradiation time (120 and 240seconds) and the molarity of the erythrosine (5 and 10μM)...
July 24, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28735790/patient-specific-finite-element-analysis-of-fiber-post-and-ferrule-design
#7
Monise de Paula Rodrigues, Priscilla Barbosa Ferreira Soares, Andréa Dollores Correia Miranda Valdivia, Roberto Sales Pessoa, Crisnicaw Veríssimo, Antheunis Versluis, Carlos José Soares
INTRODUCTION: A ferrule on anterior endodontic-treated teeth has been evaluated using clinical trials, in vitro tests, and finite element analysis (FEA). The patient-specific FEA with a nonuniform ferrule and nonlinear contact biting load associated with clinical validation can be used to predict failure. METHODS: A patient was selected with both maxillary central incisors with different ferrule designs who received endodontic treatment and restoration using a fiber post, composite core, and computer aided design and computer aided manufacturing lithium disilicate ceramic crowns...
July 20, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28720286/stress-generation-during-pecking-motion-of-rotary-nickel-titanium-instruments-with-different-pecking-depth
#8
Jung-Hong Ha, Sang Won Kwak, Asgeir Sigurdsson, Seok Woo Chang, Sung Kyo Kim, Hyeon-Cheol Kim
INTRODUCTION: The aim of this study was to evaluate the effect of different pecking depth on the stress generated by the screw-in forces of a rotating endodontic file in simulated canals. METHODS: Twenty simulated resin blocks with a J-shaped curvature were used. Twenty OneG files (MicroMega, Besançon, France) were assigned for a screw-in test depending on the pecking depth in 2 groups (n = 10). The files were operated at 300 rpm, and the up and down speed was controlled at 1 mm/s stroke velocity and a 10-millisecond dwell time using a customized device...
July 15, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28718229/comparison-of-pre-operative-curvature-with-postoperative-curvature-in-root-canals-treated-with-k-3-rotary-systems
#9
Sana Ehsen Nagi, Farhan Raza Khan
BACKGROUND: With root canal treatment, the organic debris and micro-organisms from pulp space is removed and an ideal canal preparation is achieved that is conducive of hermetic obturation. The purpose of this study was to correlate the pre-operative canal curvature with the postoperative curvature in human extracted teeth prepared with K-3 rotary systems. METHODS: The root canal preparation was carried out on extracted human molars and premolars using K-3 endodontic rotary files...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28717632/effect-of-different-intracoronal-bleaching-methods-on-shear-bond-strength-of-ceramic-brackets-bonded-to-bleached-enamel-an-in-vitro-study
#10
Vikas Chauhan, Piush Kumar, Payal Sharma, Divya Shetty
OBJECTIVE: To investigate the effect of different intracoronal bleaching methods on the shear bond strength and site of failure of ceramic brackets. MATERIALS AND METHODS: Sixty freshly extracted human maxillary incisors were randomly divided into four groups (n = 15). Endodontic access cavity was prepared and root canals were filled, root fillings were removed 2mm apical to the cementoenamel junction, and a 2-mmthick layer of glass ionomer cement base was applied...
July 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/28677589/regeneration-of-periapical-lesions-post-endodontic-treatment-and-periapical-surgeries-in-experimental-animals-utilizing-thermo-responsive-nano-%C3%AE-tricalcium-phosphate-chitosan-hydrogel-a-proof-of-concept
#11
Wafa I Abdel-Fattah, Salma Hassan El Ashry, Ghareib W Ali, Mohamed Aiad Abdel Hamid, Amina Gamal El-Din, Bassma El-Ashry
Using phosphate nanoparticles/polymeric hydrogels presents an interesting approach, especially concerning the reduced particle migration and enhanced biocompatibility. The current work aims to achieve a proof of concept for the development of a thermo-sensitive nano β-tricalcium phosphate (β-TCP)/chitosan (Cs)/glycerophosphate (Gl)/glyoxal (Gly) hydrogel to be applied in periapical surgeries post endodontic treatment. Physicochemical characterization using x-ray powder diffraction, Fourier transform infrared, TEM and SEM was performed...
July 5, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28638561/importance-and-methodologies-of-endodontic-microleakage-studies-a-systematic-review
#12
REVIEW
Farnaz Jafari, Sanaz Jafari
INTRODUCTION: It is very important to obtain a tight seal in obturated root canal, making it necessary to conduct clinical or laboratory studies on the sealability of endodontic materials. Different methodologies have been historically used to assess microleakage of different endodontic materials. The aim of the present study was to comprehensively review different material testing methods used in microleakage studies, their interpretation and importance in endodontic literature. MATERIAL AND METHODS: A systematic search was conducted in Medline, Cochrane, and Web of Science databases...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28629781/position-paper-for-the-evaluation-and-management-of-oral-status-in-patients-with-valvular-disease-groupe-de-travail-valvulopathies-de-la-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-cardiologie-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-chirurgie-orale-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-parodontologie-et-d-implantologie
#13
REVIEW
Sarah Millot, Philippe Lesclous, Marie-Laure Colombier, Loredana Radoi, Clément Messeca, Mathieu Ballanger, Jean-Luc Charrier, Philippe Tramba, Stéphane Simon, Alain Berrebi, Fabien Doguet, Emmanuel Lansac, Christophe Tribouilloy, Gilbert Habib, Xavier Duval, Bernard Iung
Oral health is of particular importance in patients with heart valve diseases because of the risk of infective endocarditis. Recommendations for antibiotic prophylaxis before dental procedures have been restricted, but the modalities of oral evaluation and dental care are not detailed in guidelines. Therefore, a multidisciplinary working group reviewed the literature to propose detailed approaches for the evaluation and management of buccodental status in patients with valvular disease. Simple questions asked by a non-dental specialist may draw attention to buccodental diseases...
August 2017: Archives of Cardiovascular Diseases
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
#14
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/28571279/comparative-evaluation-of-different-modes-of-laser-assisted-endodontics-in-primary-teeth-an-in-vitro-study
#15
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/28571261/effect-of-different-ferrule-length-on-fracture-resistance-of-endodontically-treated-teeth-an-in-vitro-study
#16
Sushil Kar, Arvind Tripathi, Chavi Trivedi
INTRODUCTION: A ferrule has been described as a key element of tooth preparation when using a post and a core. It is a vertical band of tooth structure at the gingival aspect of crown preparation. It lessens the stress transmission to the root which is due to forces from posts or bending during seating of the post. The incorporation of a ferrule can help to withstand the forces of occlusion, preserve the hermetic seal of the luting cement, and minimize the concentration of stresses at the junction of post and core...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28545523/l-mimosine-and-hypoxia-can-increase-angiogenin-production-in-dental-pulp-derived-cells
#17
Klara Janjić, Michael Edelmayer, Andreas Moritz, Hermann Agis
BACKGROUND: Angiogenin is a key molecule in the healing process which has been successfully applied in the field of regenerative medicine. The role of angiogenin in dental pulp regeneration is unclear. Here we aimed to reveal the impact of the hypoxia mimetic agent L-mimosine (L-MIM) and hypoxia on angiogenin in the dental pulp. METHODS: Human dental pulp-derived cells (DPC) were cultured in monolayer and spheroid cultures and treated with L-MIM or hypoxia. In addition, tooth slice organ cultures were applied to mimic the pulp-dentin complex...
May 25, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28530469/rapid-bacterial-detection-during-endodontic-treatment
#18
D B Herzog, N A Hosny, S A Niazi, G Koller, R J Cook, F Foschi, T F Watson, F Mannocci, F Festy
Bacteria present in the root canal (RC) space following an RC treatment (RCT) can lead to persistent infections, resulting in treatment failure and the need for reintervention or extraction. Currently, there are no standardized methods in use to clinically detect bacterial presence within RC spaces. The use of paper point sampling and fluorescence staining was shown to be a rapid method, able to detect residual bacteria following treatment. The study demonstrated that Calcein acetoxymethyl (AM) proved to be a suitable dye for detecting vital bacteria within mature endodontic biofilms, with an improved sensitivity over colony-forming unit counting in a stressed biofilm model...
June 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28512652/comparison-of-simplistic-biofilm-models-for-%C3%A2-evaluating-irrigating-solutions
#19
Maximilian Gänsbauer, Andreas Burkovski, Matthias Karl, Tanja Grobecker-Karl
OBJECTIVE: Many innovations have recently been implemented in the field of endodontics, often based on a variety of in-vitro/ex-vivo test setups. It was the goal of this research to compare different biofilm models for evaluating the effectiveness of rinsing solutions. METHOD AND MATERIALS: Three different models have been applied in this study, including petri dishes with nutrient medium, arrays of human dentin disks, and split bovine root segments. The susceptibility of biofilms formed by Enterococcus faecalis to commonly used endodontic irrigants was tested...
2017: Quintessence International
https://www.readbyqxmd.com/read/28512492/in-vitro-sealing-properties-of-calcium-enriched-mixture-and-mineral-trioxide-aggregate-orifice-barriers-during-intra-coronal-bleaching
#20
Negar Moghadam, Amir Ardalan Abdollahi, Hoda Aghabalayi Fakhim, Zahra Borna
INTRODUCTION: This study aimed at evaluating the sealing properties of calcium-enriched mixture (CEM) compared to mineral trioxide aggregate (MTA) as a cervical barriers in intra-coronal bleaching. METHODS AND MATERIALS: In this in vitro study, endodontic treatment was performed on 60 extracted human incisors and canines without canal calcification, caries, restorations, resorption or cracks. The teeth were then randomly divided into two experimental groups and two control groups (n=15)...
2017: Iranian Endodontic Journal
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