Download or read book Influence of Kinematics of Nickel Titanium Instruments on Root Canal Preparations of Dental Students A Micro CT Evaluation written by Akshay Keerthy and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction:One of the most important steps in endodontic treatment includes the shaping and instrumentation of the root canal system. If not done properly, it may lead to errors including canal transportations and uncentered preparations. Over the last decades, nickel-titanium (NiTi) rotary instruments have enhanced the quality of root canal shaping for clinicians. Currently, two common NiTi rotary instruments, WaveOne Gold and ProTaper Gold, function by two different forms of kinematics: a reciprocating and rotating movement respectively. Currently, preclinical curricula in dental schools do not have a standardized rotary file in which dental students are introduced into endodontics with. This study looks at the use of these two rotary systems by novice sophomore dental students on the quality of their root canal preparations. Purpose: This study aims to examine the influence of kinematics of nickel-titanium instruments (reciprocation vs rotation) on the shaping ability, canal transportation and centering ratio, of novice pre-doctoral sophomore dental students and their preference after its use. Materials and Methods: Forty two identical pre-accessed mandibular left first molar 3-dimensional printed replicas' mesial canals (TrueTeeth; PlanBDental) were instrumented by 21 novice pre-doctoral sophomore dental students. Each canal was previously hand instrumented to a size #15 K file by a single provider. The students were recruited using a random number generator. The teeth were divided up into 2 groups for each rotary file system being used: ProTaper Gold (PTG) (n=21) and WaveOne Gold (WOG) (n=21). Each student instrumented both the mesiobuccal (MB) and mesiolingual canals (ML) using each system. The total instrumentation time was recorded. Micro-computed tomography was used to scan the teeth before and after instrumentation. Centering ratios and canal transportation were calculated at the apical, middle and coronal levels. A questionnaire was completed after instrumentation regarding students' perception with a 5-point Likert scale: ease of use, flexibility, cutting efficiency, screwing effect and overall impression. Conclusion: Compared to a rotation NiTi file system, reciprocation NiTi file system was preferred by novice sophomore dental students, and it also showed less canal transportation and better centering ability with shorter instrumentation times. Future studies are still needed in order to assess if there are further advantages to training novice dental students with reciprocating rotary systems when learning endodontics, but this study can serve as a framework to answer the question.
Download or read book Rotary Ni Ti Instruments written by Ruchi Singla and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of nickel-titanium (NiTi) rotary files to endodontics almost two decades ago has changed the way root canal preparations are performed, enabling more complicated root canal systems to be shaped with fewer procedural errors. Currently, a number of rotary Ni-Ti systems are available but it is difficult for dentist to decide which one is better. This book gives a detailed knowledge of various parameters, to evaluate which rotary system has superior shaping ability of the root canals as compared to other. Keeping in view the importance of parameters, each parameter has been described in details i.e. how to measure it and its significance. It also highlights the comparison of shaping ability of root canals with two rotary systems with different designs and their outcome with reasoning
Download or read book An Evaluation of Root Canal Transportation Using a Nickel titanium Rotary Instrument written by James Foster Woods and published by . This book was released on 1996 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endodontic Advances and Evidence Based Clinical Guidelines written by Hany M. A. Ahmed and published by John Wiley & Sons. This book was released on 2022-09-30 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores recent research and innovations in the field of endodontics and provides evidence-based guidelines for contemporary dental practice Endodontic Advances and Evidence-Based Clinical Guidelines provides a comprehensive and up-to-date description of recent research findings and their impact on clinical practice. Using an innovative approach to the field, the book enables readers to translate the current body of knowledge on endodontic diseases and treatment into guidelines for enhancing patient care. Divided into four parts, the book first addresses new research findings and advances in technology, techniques, materials, and clinical management. In addition, it provides revised clinical guidelines for a variety of areas within the specialty, such as endodontic diagnosis, treatment planning, management of endodontic emergencies, regenerative endodontic procedures, three-dimensional imaging, and the use of systemic antibiotics. Each chapter contains numerous high-quality illustrations and clinical cases highlighting current research directions, key concepts, and new trends in clinical techniques and education. Endodontic Advances and Evidence-Based Clinical Guidelines: Presents the latest understanding of current literature, evidence, and clinical practice Examines new trends, treatments, and advanced diagnostic techniques in the field Covers a wide range of topics, including management of root canals, repair of perforation defects, removal of root filling materials, and alternatives to root canal treatment Endodontic Advances and Evidence-Based Clinical Guidelines is an invaluable resource for undergraduate and postgraduate dental students, general dental practitioners, endodontic specialists, researchers in the field of endodontics, and clinicians, researchers, and educators in other fields of dentistry.
Download or read book Preparation of Curved Root Canals with Different Nickel Titanium Rotary Systems written by Mei-Ling Bonnie Chiu and published by Open Dissertation Press. This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Preparation of Curved Root Canals With Different Nickel-titanium Rotary Systems: Three-dimensional Comparison Using Micro-computed Tomography" by Mei-ling, Bonnie, Chiu, 趙美玲, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b3195427 Subjects: Dental pulp cavity Teeth - Tomography Nickel-titanium alloys Dental instruments and apparatus
Download or read book Preparation of Curved Root Canals with Different Nickel titanium Rotary Systems written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Three Nickel Titanium Instruments and the Step Down Technique for Preparing Curved Root Canals written by XI Wei and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Comparison of Three Nickel-titanium Instruments and the Step-down Technique for Preparing Curved Root Canals" by 韋曦, Xi, Wei, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b3862807 Subjects: Root canal therapy Dental instruments and apparatus Nickel-titanium alloys
Download or read book Low Cycle Fatigue of Nickel Titanium Rotary Root Canal Instruments written by Shun-Pan Gary Cheung and published by Open Dissertation Press. This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Low-cycle Fatigue of Nickel-titanium Rotary Root-canal Instruments" by Shun-pan, Gary, Cheung, 張順彬, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4501553 Subjects: Root Canal therapy Endodontics - Instruments Dental instruments and apparatus Nickel-titanium alloys
Download or read book Root Canal Preparation with Two Different Rotary Systems written by Ala Al-dameh and published by . This book was released on 2011 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of Phase Transformation Mechanisms for Nickel titanium Rotary Endodontic Instruments written by Satish B. Alapati and published by . This book was released on 2006 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Nickel-titanium rotary instruments based upon the intermetallic compound NiTi have gained considerable popularity among endodontists because the very low elastic modulus of NiTi enables these instruments to readily negotiate curved root canals during endodontic therapy with a slow-speed handpiece. However, concern about in vivo separation (fracture) of nickel-titanium instruments during treatment is still a major challenge confronting every manufacturer and endodontist, since this often happens without prior warning signs from permanent deformation. NiTi exists in two major microstructural phases: austenite, and martensite. Transformations between these NiTi phases occur rapidly by twinning on the atomic level and are reversible for stresses below the onset of permanent deformation. An intermediate R-phase is also sometimes observed for the transformation between austenite and martensite. The nickel-titanium rotary instruments are intentionally manufactured in the superelastic condition having the fully austenitic structure, which provides the capability of accommodating extensive elastic strain without fracture under clinical conditions associated with conventional root canal therapy. The overall objective of this study was to gain new insight into the microstructural phases in commercial NiTi rotary instruments and their transformations, which would be of scientific importance for development of new instruments with improved clinical performance. The phases present were identified by Micro-XRD (micro-x-ray diffraction) and TMDSC (temperature-modulated differential scanning calorimetry), using clinically popular ProFile GT and ProTaper nickel-titanium rotary instruments, which have two different cross-sectional designs. Instruments were analyzed in the as-received condition, after clinical use, and following elevated-temperature heat treatments. The first null hypothesis was that microstructural phases and phase transformations do not have an impact on clinical performance and instrument failure. The second null hypothesis was that appropriate heat treatments previously used for orthodontic wires would not result in beneficial changes in microstructural phases that may significantly affect the clinical life of these instruments. Based upon the present research and complimentary previous studies by this investigator, both null hypotheses were rejected. Information obtained from this research should aid future development of improved instruments with reduced likelihood of failure during clinical use.
Download or read book Effect of Increase in Tapers on the Flexibility of Nickel titanium Root Canal Files written by Edward J. Fischer and published by . This book was released on 1999 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Shaping Ability of Three Nickel titanium Instruments in Simulated Curved Root Canals written by Ovini Veivakatorocaketaki Masi and published by . This book was released on 2010 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nickel Titanium Rotary Root Canal Instruments written by Ove A. Peters and published by . This book was released on 2001 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low cycle Fatigue of Nickel titanium Rotary Root canal Instruments written by Shun-pan Cheung (Gary) and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Restoration of Root Canal Treated Teeth written by Jorge Perdigão and published by Springer. This book was released on 2015-10-02 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive and up-to-date overview of the restoration of teeth retained through root canal treatment, from the perspective of adhesive dentistry. The challenge of adhesion to root dentin is first explained and guidance provided on assessment of the restorability of endodontically treated teeth. The types of prefabricated passive post are then described in detail. The advantages and disadvantages of each type are outlined, with identification of the factors that influence post selection. Further topics include the ferrule effect, evidence‐based clinical applications of fiber posts and new methods to lute fiber posts to the root canal without dentin adhesives. In addition, frequent myths are identified and dispelled. All aspects are illustrated with clinical and laboratory images, diagrams and high-resolution electron microscopy photographs.
Download or read book Comparison of Three Nickel titanium Instruments and the Step down Technique for Preparing Curved Root Canals written by Wei, Xi and published by . This book was released on 2000 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Quality of Root Canal Preparation with Nickel titanium Files in Mesiobuccal Canals of Mandibular Molar Teeth written by Padewradda Lohsuwan and published by . This book was released on 2004 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
