1,720,956 research outputs found
TECNICHE CHIRURGICHE DI ANCORAGGIO TEMPORANEO, SURGICAL TECNIQUE OF TEMPORARY ANCHORAGE DEVICES
La ricerca nel campo della medicina rende giorno dopo giorno passi importanti verso nuove frontiere. In odontoiatria, molti progressi sono stati compiuti negli ultimi decenni, in medici infatti spinti dalla necessità di realizzare le terapie che erano sempre più avanzati, valido ed affidabile nel tempo hanno adottato tecniche per tener conto delle numerose ed elevate esigenze del paziente, come ad come importanti aspettative estetiche, il comfort durante la terapia (per non sottovalutare l'aspetto psicologico dei pazienti che possono influenzare le relazioni sociali nella loro quotidiana).
La domanda di trattamento ortodontico da parte degli adulti è aumentata negli ultimi anni. La popolazione adulta presenta spesso la riduzione dei parodontale di supporto del tessuto e diversi obiettivi di trattamento rispetto alla popolazione pediatrica e adolescenziale.
Il compromesso biomeccanico per poter rispondere più semplicemente a questa doppia componente è l'uso di dispositivi di ancoraggio semplici ed efficaci: i TADS (dall'inglese temporanee ancoraggio Devices).
Il tema è l'uso e le tecniche chirurgiche per l'inserimento di dispositivi di ancoraggio temporanei, definiti da TADS acronimo.
In questo contesto, con metodi diagnostici tradizionali e digitali e utilizzando materiali, strumenti e tecniche standardizzate è cresciuta notevolmente la prevedibilità della terapia stessa.
I vantaggi di questo nuovo dispositivo sono la minore richiesta di collaborazione da parte del paziente, con una notevole riduzione della necessità di ancoraggio dentale e riduzione dei tempi di lavorazione.
Grazie a tali dispositivi medico-chirurgici, il dentista è in grado di offrire al tempo stesso un trattamento soddisfacente e di alta qualità per il paziente.
L'uso e l'applicazione dei TADS è parte di un contesto multidisciplinare che coinvolge più professionisti appartenenti a diversi rami dentali. L'insieme dei dispositivi di ancoraggio temporanei include gli impianti osteointegrati, le piastre di mini-ancoraggio e mini-viti.
Questo documento illustra le tecniche chirurgiche di inserimento di mini-viti.Research in the field of medicine makes day after day important steps toward new frontiers. In dentistry, much progress has been achieved in recent decades, in fact clinicians driven by the need to realize the therapies that were more and more advanced, valid and reliable over time have adopted techniques to take into account the numerous and high patient needs , such as important aesthetic expectations, comfort during therapy (not to underestimate the psychological aspect of patients that may affect social relationships in their daily).
The demand for orthodontic treatment by adults has increased in recent years. The adult population often presents reduction of periodontal supporting tissue and different treatment goals compared to the pediatric and adolescent population.
The biomechanical compromise to be able to respond more simply to this twofold component is the use of simple and effective anchoring devices: the TADS (from English Temporary Anchorage Devices).
The topic is the use and surgical techniques for inserting temporary anchorage devices, defined by TADS acronym.
In this context, using traditional and digital diagnostic methods and using materials, tools and standardized techniques has grown considerably the predictability of the therapy itself.
The advantages of this new device are the smaller demand for collaboration by the patient, with a remarkable reduction of the need for dental anchor and reduction of processing times.
Thanks to such medical-surgical devices, the dentist is able to offer at the same time a satisfactory treatment and high quality for the patient.
The use and application of the TADS is part of a multidisciplinary context involving more professionals belonging to different dental branches. The set of temporary anchorage devices includes the osseointegrated implants, the mini-anchor plates and mini-screws.
This paper will discuss the surgical techniques of insertion of mini-screws
Resolution of endodontic issues linked to complex anatomy
Anatomical abnormalities of the root canal system are frequently seen in specialist endodontic practice, and represent a challenge to be faced with skill and thoroughness, beginning with an accurate diagnostic phase and devising the most appropriate treatment plan. Fortunately, much progress has been made in endodontic research thanks to technological advances and the
evolution of higher performance instruments, which now consent even very complex cases to be resolved with relative ease. Below are described the salient features of recent progress in endodontics, along with a description of several clinical cases in which the operator has encountered numerous difficulties due to peculiar tooth morphology, overcome successfully thanks to the application of modern tools and consolidated clinical experience in the field
Nano-hydroxyapatite and its applications in preventive, restorative and regenerative dentistry: a review of literature
This study aims to critically summarize the literature about nano-hydroxyapatite. The purpose of this work is to analyze the benefits of using nano-hydroxyapatite in dentistry, especially for its preventive, restorative and regenerative applications. We also provide an overview of new dental materials, still experimental, which contain the nano-hydroxyapatite in its nano-crystalline form.
Hydroxyapatite is one of the most studied biomaterials in the medical field for its proven biocompatibility and for
being the main constituent of the mineral part of
bone and teeth. In terms of restorative and preventive dentistry, nano-hydroxyapatite has significant
remineralizing effects on initial enamel lesions, certainly superior to conventional fluoride, and good results on the sensitivity of the teeth. The nano-HA has also been used as an additive material, in order to improve already existing and widely used dental materials, in the restorative field (experimental addition to conventional glass ionomer cements, that has led to significant improvements in their mechanical properties). Because of its unique properties, such as the ability to chemically bond to bone, to not induce toxicity or inflammation and to stimulate bone growth through a direct action on osteoblasts, nano-HA has been widely used in periodontology and in oral and maxillofacial surgery. Its use in oral implantology, however, is a widely used practice established for years, as this substance has excellent osteoinductive capacity and
improves bone-to-implant integration
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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