1,720,955 research outputs found
COMPLICATION OF THE EXTRACTION OF MAXILLARY ANTERIOR SUPERNUMERARY TEET:THE ACCIDENTAL EXTRACTION OF THE PERMANENT TOOTH BUD
Full text linkBackground. This article aims to report the case of a seven-year-old girl affected by a numerical dental anomaly. Supernumerary teeth can lead to secondary dental eruption disturbance dental crowding and bone cysts formation. Even though the clinical and instrumental documentation was adequate to make a correct diagnosis and a surgical-orthodontic treatment plan, a technical error during the surgical phase can lead to the extraction of the permanent bud instead of the supernumerary tooth. The presented case highlights the 2-year follow-up of the immediate reimplantation of the avulsed tooth after the attempt to extract the supernumerary bud and provides the clinician with the most precise awareness and knowledge of possible medico-legal implications regarding surgery at the wrong site. Materials and Methods. During the extraction attempt, the clinician mistakenly extracted the wrong dental element, the bud of the permanent 1.1, and proceeded to reimplant it. After 11 months, a second dentist extracted the correct supernumerary tooth. The case defines guidelines applicable in outpatient clinical practice to manage complications in the best possible way. Results and conclusion. The therapy of supernumerary teeth is extraction. Further work is needed to monitor why a wrong tooth extraction occurs and how it can be prevented; this will be possible by reporting incidents, analyzing the root causes, and clearly and thoroughly educating the clinician on his medico-legal responsibilities
Volumetric evaluation of maxillary sinuses using CBCTS: radiographic study
Full text linkThe evaluation of maxillary sinus volumes is fundamental for pre-surgical planning in this area, as well as for the diagnosis of sinusitis and the diagnosis and treatment of maxillary hypoplasia. This study aimed to assess changes in sinus volume over time as a function of different conditions, such as sex, orthodontic treatments like rapid palate expansion, and the presence of edentulism. The Cone-Beam Computed Tomographies of eighteen patients were selected, and their entire sinus volumes were segmented, enabling the measurement of the sinus volume in three spatial dimensions. The collected data were statistically analyzed using the T-Student test and ANOVA. The mean size of the measured right sinus volume was 14.42 cm3, and that of the left sinus was 14.17 cm3. No statistically significant difference was identified between the right and left maxillary sinus volumes, even in correlation with the considered factors (p-value > 0.05). The values found in the present study agreed with those in the literature, confirming the importance of radiographic evaluation of this structure for diagnosis and treatment planning
Bidirectional Relationship Between Periodontal Disease and Reproductive Disorders: Focus on Polycystic Ovary Syndrome
Full text linkBackground: Polycystic ovary syndrome (PCOS) is an endocrine disorder characterized by hyperandrogenism, irregular ovulation, and polycystic ovarian morphology. The severity of periodontal inflammation in PCOS may be linked to elevated levels of inflammatory mediators, like interleukins (IL-6, IL-17), and matrix metalloproteinase-8 (MMP-8), found in both serum and saliva samples. This systematic review aims to assess the presence, nature, and variations in salivary inflammatory biomarkers in individuals with PCOS and their potential connection to periodontal disease (PD). Materials and Methods: Selected databases were PubMed, Scopus, Google Scholar, and Web of Science. The search strategy included the following terms: “oral inflammatory biomarkers”, “Salivary mediators,” “metabolic indicators,” “periodontal diseases,” “periodontitis,” “polycystic ovary syndrome,” “PCOS,” and “ovulatory dysfunction.” Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were used. Results: Several salivary inflammatory biomarkers are present in women with PCOS, including cytokines, C-reactive protein (CRP), reactive oxygen species (ROS), MMPs, and microbial diversity alterations. Additionally, the reviewed studies suggest a correlation between PCOS and PD, as patients with PCOS exhibit greater periodontal alterations compared to healthy women. The heightened periodontal response in PCOS appears to be associated with a systemic inflammatory state, probably increasing the susceptibility to PD. Conclusions: Salivary inflammatory biomarkers in PCOS patients are a useful diagnostic tool for evaluating the heightened risk of periodontal disease. Further research with stricter protocols is necessary to better define the diagnostic potential of these biomarkers for PCOS patients and determine their role in the early detection of periodontal disease
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
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