Download or read book Biological Screening of Root Canal Sealers Using in Vitro and in Vivo Methods written by Alf Wennberg and published by . This book was released on 1979* with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Screening of Root Canal Antiseptics Using in Vitro and in Vivo Methods written by Alf Wennberg and published by . This book was released on 1977* with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Methods for Biological Screening of Dental Materials written by Alf Wennberg and published by . This book was released on 1978 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicity of Different Root Canal Sealers written by Hena Rahman and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers knowledge of recent root canal sealers used in dentistry in a simplified manner. Properties of sealers, their effect on culture cells depicting their cytotoxicity level in a timely fashion. sealers were tested in vitro to simulate the conditions in vivo. Biological compatibility of root canal sealers is of importance as these materials frequently come into contact with periapical tissues. The tissue response to these materials may influence the final outcome of the root canal treatment. A sealer should not hinder tissue repair, but aid or stimulate the reorganization of injured structures. Various researches and studies have been done previously to test the biocompatibility of different material classes and products of root canal sealers. The results of these studies varies considerably depending upon the methods employed and other factors affecting the efficacy of test. The study, "Comparative evaluation of cytotoxicity profile of different root canal sealers: An in vitro analysis" was conducted in the Department of Conservative Dentistry and Endodontics, King George's Medical University, Lucknow in collaboration with Central Drug and Research Institute, Lucknow.

Download or read book Biological Effects of Root Canal Filling Materials written by Lars Spångberg and published by . This book was released on 1969 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Root Canal Biofilm written by Luis E. Chávez de Paz and published by Springer. This book was released on 2015-10-20 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the current state of research on the basic scientific aspects of root canal biofilm biology within a clinically applicable context. Root canal biofilms are complex polymicrobial structures adhering to the root canal surface that are formed by microorganisms invading the pulpal space of teeth, and are associated with persistent root canal infections. Concerted efforts to study root canal biofilms have been made in the past decade, resulting in the publication of observational and experimental studies that detail the morphology and biology of these structures in infected root canals. In addition to confirming that bacteria in root canals do not exist in free-floating planktonic states as previously assumed, this new information on root canal biofilm infections has provided an opportunity to re-evaluate conventional clinical protocols and improve endodontic therapeutic measures.

Download or read book Biological effects of root canal filling materials written by and published by . This book was released on 1969 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Anatomy of the Root canals of the Teeth of the Permanent Dentition written by Walter Hess and published by . This book was released on 1925 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wurzelkanal / Anatomie

Download or read book Methods of Biological Assessment of Dental Materials written by British Standards Institution and published by . This book was released on 1980 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An In vitro Comparison of Bacterial Microleakage of Zinc oxide Eugenol and Brasseler Biceramic Seale written by Joyce F. Nazzal and published by . This book was released on 2011 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: New sealers have been placed on the market to improve the property of a hermetic seal within the root canal and decrease the gap between the gutta-percha and dentin wall. Differences in the adhesive properties of endodontic sealers may be expected because their interaction with either dentin or gutta-percha may vary with their chemical composition. No specific interaction either with dentin or gutta-percha is expected from the setting reaction of calcium hydroxide based sealers and the epoxy-based sealers. The setting reaction of the zinc oxide-eugenol mixtures is a chelation reaction occurring with the zinc ion of the zinc oxide. Development and maintenance of the seal are essential to optimize the long-term success rate of root canal treatment. An ideal endodontic sealer should, in part, adhere firmly both to dentin and gutta-percha. PURPOSE: The purpose of this study is to evaluate the sealing properties of EndoSequence BC sealer TM, a bioceramic sealer, and Roth's sealer using gutta-percha with warm vertical condensation and using the single cone technique with the EndoSequence BC sealer only. The goal is to see if there is a significant difference in microleakage between teeth sealed with the bioceramic sealer and teeth sealed with Roth's sealer. MATERIALS & METHODS: Eighty-five single-rooted maxillary anterior teeth were used for this study. Endodontic cleaning and shaping of each root canal system was accomplished using K-type hand files and NiTi Rotary files. Group A consisted of twenty-seven anterior teeth, which were obturated using EndoSequence BC sealer and gutta-percha with System B and Obtura. Another twenty-seven anterior teeth, Group B, was obturated using Roth's sealer and gutta-percha with System B and Obtura. A final group, Group C with 27 teeth was obturated using the single cone technique by means of a single gutta-percha point with Endosequence BC sealer. Two teeth were used as a positive control group, and two other teeth as a negative control group. A microbial leakage apparatus was constructed using a similar two-chamber method described by Torabinejad et al. E. faecalis ATCC 29212 was the test bacteria which was used in this study to determine microleakage The outcome of interest (bacterial turbidity) and time-to-leakage (in days), will be determined for each of the samples. Survival analysis will be used to compare the two groups, with a Kaplan-Meier plot to visualize the results and a nonparametric log-rank test for the group comparison RESULTS: No microleakage was observed in the negative control or group B. Microleakage was observed in all the positive control. Group A and C had a significantly higher proportion of samples with microleakage than group B (p

Download or read book Alternatives to Laboratory Animals written by and published by . This book was released on 1985 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological effects of root canal filling materials Experimental investigation of the toxicity of root canal materials in vitro and in vivo written by Larz Spångberg and published by . This book was released on 1969 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technetium 99m Pharmaceuticals written by Ilse Zolle and published by Springer Science & Business Media. This book was released on 2007-01-28 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radioactive drug development is a multi-disciplinary task. Therefore, dedicated scientists and experts from different fields of specialisation have contributed to this book. The text reviews forty years of advances in radiopharmaceutical development based on Technetium. The first section reviews basic principles and analytic methods, and information on chemical makeup of radiopharmaceuticals. Part 2 reviews 99mTc-radiopharmaceuticals used in nuclear medicine, thoroughly outlining their chemistry, formulation, pharmacokinetics and clinical applications.

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1989 with total page 1420 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adherence in vitro of Enterococcus faecalis on the surface of some root canal sealers written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Enterococcus faecalis representam um dos principais microrganismos correlacionados com insucesso dos tratamentos endodônticos. Os cimentos utilizados para obturação dos canais radiculares devem possuir propriedades antimicrobianas, de modo a prevenir o crescimento bacteriano na superfície dos mesmos. O objetivo do presente trabalho foi avaliar, in vitro, a aderência de Enterococcus faecalis na superfície de alguns cimentos de obturação utilizados em endodontia. Foram confeccionados 10 corpos-de-prova de cinco tipos de cimentos endodônticos (Sealer 26, N-Rickert, Sealapex, Pulp Canal Sealer e AH Plus), nos quais foi observada a aderência de Enterococcus faecalis em suas superfícies. Cada corpo-de-prova foi colocado em imersão em cultura do microrganismo, durante 24 horas, e a seguir, foram quantificadas médias das unidades formadoras de colônias de microrganismos aderidos aos corpos-de-prova de cada material obturador. Os resultados foram submetidos à análise de variância ANOVA, que evidenciou haver diferença estatisticamente significante (p

Download or read book Mineral Trioxide Aggregate in Dentistry written by Josette Camilleri and published by Springer. This book was released on 2014-07-30 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mineral trioxide aggregate (MTA) was invented in the mid-1990s at Loma Linda University, USA, with the aim of introducing a material for use as a root-end filler that would set and develop its properties in the presence of moisture. MTA is a mixture of Portland cement and bismuth oxide, which is added to enhance the radiopacity of the material. These two components are mixed with water to produce hydrated cement. This book concisely presents information on diverse aspects of MTA and its use with a view to making it more widely available to clinicians and researchers. The topics covered include the development of MTA and its introduction into clinical dentistry, its chemical composition and setting characteristics, manipulation and placement, material properties, reactivity and the influence of environmental factors. The clinical applications are clearly explained and related innovations and further materials currently available on the market are also discussed.

Download or read book Biocompatibility of Dental Materials written by Gottfried Schmalz and published by Springer Science & Business Media. This book was released on 2008-10-10 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and scientifically based overview of the biocompatibility of dental materials. Up-to-date concepts of biocompatibility assessment are presented, as well as information on almost all material groups used in daily dentistry practice. Furthermore, special topics of clinical relevance (e.g,, environmental and occupational hazards and the diagnosis of adverse effects) are covered. The book will: improve the reader’s ability to critically analyze information provided by manufacturers supply a better understanding of the biocompatibility of single material groups, which will help the reader choose the most appropriate materials for any given patient and thus prevent adverse effects from developing provide insights on how to conduct objective, matter-of-fact discussions with patients about the materials to be used in dental procedures advise readers, through the use of well-documented concepts, on how to treat patients who claim adverse effects from dental materials feature clinical photographs that will serve as a reference when analyzing clinical symptoms, such as oral mucosa reactions.