1,720,955 research outputs found
Orthodontic extrusion for pre-im-plant site enhancement in a posterior area: An interdisciplinary case report
No full textReplacing a compromised dental element with a dental implant is a well documented procedure with a high success rate. The immediate placement of a dental implant at the time of extraction requires a favorable anatomical scenario. If the anatomical scenario is not ideal, it is possible to perform surgical procedures in order to increase hard and soft tissues after tooth extraction or to do orthodontic extrusion, which reduces the number of surgical procedures and times. Extrusion must be followed by a prolonged retention period to allow remodeling and adaptation of the periodontal tissues with the new tooth position. Orthodontic extrusion makes the positioning of dental implants more favorable. Ridge preservation allows placement of the dental implant within the bone thickness on a suitable axis. The case presented included orthodontic extrusion and, subsequently, the extraction of a compromised tooth in order to guarantee an ideal quantity of hard and soft tissues for positioning a post-extraction implant
Avulsione dentaria e OHRQoL.
No full textScopo del presente lavoro è quello di descrivere l’OHRQoL su di una popolazione che è andata incontro ad avulsione dentaria. Lo studio inoltre si pone l’obiettivo di identificare evidenze cliniche, associate all’OHRQoL, e di identificare la riabilitazione ideale in seguito ad avulsione in pazienti minorenni.Lo studio rientra in un più ampio clinical trial effettuato presso l’Università degli Studi di Modena e Reggio Emilia nel triennio 2003-2006 che ha interessato una popolazione di 101 pazienti.Ciascun paziente ha ricevuto una precisa terapia, specifica per il singolo caso, laddove possibile si è intervenuti con il reimpianto immediato, laddove invece questi non era possibile, o era andato incontro a fallimento, si è intervenuti con differenti presidi.La popolazione di pazienti è stata sottoposta all’OHIP-14, indice della percezione di malattia sull’impatto sociale di affezioni orali.Si sono evidenziati 7 gruppi di studio indicanti le diverse tipologie di riabilitazione.Il 21.2% dei soggetti studiati ha riportato una o più risposte affermative all’OHIP-14 nei 12 mesi precedenti. Le percentuali più basse si sono riscontrate a carico dei pazienti con reimpianto immediato, mentre il maggior discomfort è stato rilevato a carico dei pazienti con chiusura ortodontica degli spazi. Le apparecchiature parziali adesive, tipo Maryland, o ricostruzioni con fibre di composito hanno dimostrato un certo livello di discomfort con valori pari al 20%.Gli apparecchi funzionali e le apparecchiature parziali rimovibili hanno invece dimostrato un buon livello di qualità della vita percepita, confermandosi quindi dei validi presidi, laddove il reimpianto non fosse possibile
Trauma dento alveolare complesso in zona estetica: proposta terapeutica.
No full textLo scopo del presente lavoro è quello di presentare un caso clinico di trauma dento-alveolare complesso interessante il gruppo frontale.La paziente, S.X.L., di anni 40, giunge all’osservazione dello specialista circa un mese dopo il trauma avvenuto in seguito a incidente stradale.All’esame obiettivo, con l’ausilio di esami radiografici, si riscontra frattura radicolare a livello del terzo apicale di 2.1, accompagnata a lussazione di entrambi gli incisivi centrali, avulsione di 4.1 e 4.2 e frattura coronale non complicata di 3.1.Si decide di intervenire procedendo all’apecificazione del frammento coronale di 2.1 tramite Idrossido di Calcio e splintaggio semi-flessibile del gruppo frontale superiore; inferiormente si procede alla terapia endodontica dell’elemento 3.1 e alla realizzazione di un manufatto protesico provvisorio in resina applicato tramite nastro multistrato ultrafine in fibra di vetro.A distanza di un mese la paziente torna all’osservazione con persistente algia in zona 2.1; si decide quindi per l’estrazione dell’elemento dentario fratturato il quale viene modellato e utilizzato come elemento provvisorio nella fase di guarigione del sito post-estrattivo applicato tramite nastro multistrato ultrafine in fibra di vetro.La paziente risulta soddisfatta sia nell’estetica che nella funzione della riabilitazione adottata.La scelta terapeutica descritta permette una rapida risoluzione del trauma garantendo un’immediata estetica in una zona dagli importanti risvolti sociali ad un costo ridotto
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
No full textWe 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
- …
