Influence of different motions on the cyclic fatigue resistance of Reciproc and Reciproc Blue endodontic instruments

Serafin, Marco; Biasi, Matteo De; Franco, Vittorio; Generali, Luigi; Angerame, Daniele

doi:10.4103/jcd.jcd_430_19

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…Nickel-titanium endodontic files have characteristics of flexibility and conicity, providing an adequate, simpler, and more efficient preparation of the RCS 16 . WA1-files have a conicity of 0.07, 0.06, and 0.05, according to the manufacturer, with their cross-sectional design in a parallelogram, favoring the cut 17 .…”

Section: Discussionmentioning

confidence: 99%

Retreatment of endodontics using hybrid instrumentation in a tooth with periapical pathology

Cantanhêde,

Silva Júnior,

Cavalcante

et al. 2024

Arq Odontol

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Aim: Report a clinical case of endodontic retreatment using a hybrid instrumentation technique, L&C paste associated with glycerin as intracanal medication and bioceramic cement. Methods: A 42-year-old male, melanoderma patient, attended the Nilton Lins University Dentistry clinic complaining of tooth fracture and sensitivity in the upper frontal region and pain on chewing. The image exams, showed a bone radiolucense on the root tip, suggestive of a periapical lesion. Clinicaly, pain on vertical percussion was observed. The findings indicated an unsatisfactory primary endodontic treatment. Given the characteristics presented, endodontic reintervention in two sessions was chosen. Results: After the endodontic obturation, the patient was followed through a year. During the months of follow-up, it was observed decrease of the radiolucense on the root tip, as well as the appearance of radiopaque areas, suggestive of bone formation, indicating the effectiveness of the proposed treatment. Conclusion: Therefore, the endodontic reintervention using hybrid instrumentation technique, L&C paste associated with glycerin as intracanal medication and bioceramic cement, showed a satisfactory result in the controlling of the infection. After 1 year, signs of bone remodeling can be seen, meeting the heal expectations predicted in the case planning, leaving the tooth suitable for prosthetic rehabilitation and return to its function.

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Section: Discussionmentioning

confidence: 99%

Retreatment of endodontics using hybrid instrumentation in a tooth with periapical pathology

Cantanhêde,

Silva Júnior,

Cavalcante

et al. 2024

Arq Odontol

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Nitinol Type Alloys General Characteristics and Applications in Endodontics

Dobrzański

Dobrzański²,

Dobrzańska-Danikiewicz

et al. 2022

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A very extensive literature review presents the possibilities and needs of using, in endodontics, the alloys commonly known as nitinol. Nitinol, as the most modern group of engineering materials used to develop root canals, is equilibrium nickel and titanium alloys in terms of the elements’ atomic concentration, or very similar. The main audience of this paper is engineers, tool designers and manufacturers, PhD students, and students of materials and manufacturing engineering but this article can also certainly be used by dentists. The paper aims to present a full material science characterization of the structure and properties of nitinol alloys and to discuss all structural phenomena that determine the performance properties of these alloys, including those applied to manufacture the endodontic tools. The paper presents the selection of these alloys’ chemical composition and processing conditions and their importance in the endodontic treatment of teeth. The results of laboratory studies on the analysis of changes during the sterilization of endodontic instruments made of nitinol alloys are also included. The summary of all the literature analyses is an SWOT analysis of strengths, weaknesses, opportunities, and threats, and is a forecast of the development strategy of this material in a specific application such as endodontics.

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Development Strategy of Endodontic Filling Materials Based on Engineering and Medical Approaches

Dobrzański

Dobrzańska²,

Dobrzański³

et al. 2021

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This article is a literature review aimed at presenting the general state of knowledge in manufacturing engineering and materials engineering to develop engineering materials applied for endodontic treatment as filling materials. Particular attention was paid to theoretical analyses concerning the selection of methods for developing and obturating root canals and discussing the results of experimental studies available in the literature. These activities aimed to compare the importance of the most commonly used endodontic filling materials based on gutta-percha or polymeric polyester materials, commonly known as resilon, respectively. The motivation to take up this complex, multi-faceted topic in this paper is the extent of caries, periodontal disease, and other oral diseases in 3 to 5 billion people, often affecting toothlessness and contributing to an increase in the index of disability-adjusted life years (number). Endodontics is an important element of the authors’ concept of Dentistry Sustainable Development (DSD) > 2020. The principles of qualifying patients for endodontic treatment are discussed. The introduction of rotary tools, especially manufactured from Nitinol alloy, to develop root canals and the latest thermohydraulic and condensation techniques for obturation guarantee progress in endodontics. The “Digital Twins” methodology was used, rooted in the idea of Industry 4.0 and the resulting idea of Dentistry 4.0, as well as knowledge management methods, to perform experimental research in virtual space, concerning methods of developing and obturating the root canal and assessing the tightness of fillings. Microscopic visualization methods were also used. Significant factors determining the effectiveness of endodontic obturation are the selection of the filling material and the appropriate obturation method. The generalized dendrological matrix of endodontic filling materials considers the criteria of mechanical strength influencing the potential root fracture and the quality of root canal filling. The results of the SWOT point analysis (strengths and weaknesses, opportunities, threats) were also compared. For both filling materials, the weaknesses are much less than the strengths, while the threats are slightly less than the opportunities for the gutta-percha-based material, while for resilon the opportunities are much smaller than the threats. It requires the application of an appropriate development strategy, i.e., MAXI-MAXI in the case of a filling material based on gutta-percha and MAXI-MINI in the case of resilon. Therefore, the analysis of these experimental data does not indicate the real competitiveness of resilon for the gutta-percha-based material. This material deservedly maintains its strong position as the “Gold Standard of Endodontics”.

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Influence of different motions on the cyclic fatigue resistance of Reciproc and Reciproc Blue endodontic instruments

Cited by 4 publications

References 31 publications

Retreatment of endodontics using hybrid instrumentation in a tooth with periapical pathology

Retreatment of endodontics using hybrid instrumentation in a tooth with periapical pathology

Nitinol Type Alloys General Characteristics and Applications in Endodontics

Development Strategy of Endodontic Filling Materials Based on Engineering and Medical Approaches

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