1,720,963 research outputs found
Dental Trauma Epidemiology in Primary Dentition: A Cross-Sectional Retrospective Study
Full text linkOur aim was to investigate the epidemiology of dental trauma (DT) injuries in primary teeth, a health hazard issue that is often neglected by the public health care system. The records of 298 children who attended the Unit of Dental Care for Special Needs Patients and Pediatric Dentistry, University of Bologna, Bologna, Italy and had suffered a DT between January 2011 and December 2021 were examined to assess age, gender, cause and place of the DT, type of lesion and teeth involved. The chi-squared test was used to compare categorical variables. A total of 265 children (89%) suffered a single trauma, and 33 (11%) suffered from repeated DT. A total of 511 teeth (mean 1.7 +/- 0.5) experienced dental trauma. Most of the trauma occurred in the 2-3 years range (153 DT, 30%). The most affected teeth were the upper central incisors (n = 388; 76%). The DT involved periodontal tissue in 316 teeth (62%) and hard dental tissue in 262 cases (51%). DT in primary teeth is commonly caused by accidental falls at home, occurs most frequently to toddlers' upper central incisors, and usually affects tooth-supporting structures. Clinicians should be aware of the most frequent DT and be updated concerning treatment guidelines
Periodontology Part 3: Hereditary Gingival Fibromatosis (HGF): from diagnosis to treatment in the paediatric age
No full textHereditary Gingival Fibromatosis (HGF) is a challenging condition that paediatric dentists may face during clinical practice. In the present article, etiopathology, diagnosis and treatment options are discussed offering a paediatric dentistry-oriented overview of HGF
Periodontology Part 3: Hereditary Gingival Fibromatosis (HGF): from diagnosis to treatment in the paediatric age
No full textHereditary Gingival Fibromatosis (HGF) is a challenging condition that paediatric dentists may face during clinical practice. In the present article, etiopathology, diagnosis and treatment options are discussed offering a paediatric dentistry-oriented overview of HGF
Periodontology Part 2: Localised Juvenile Spongiotic Gingival Hyperplasia: histopathological and clinical features
No full textPeriodontology Part 2: Localised Juvenile Spongiotic Gingival Hyperplasia: histopathological and clinical features
No full textLocalised juvenile spongiotic gingival hyperplasia (LJSGH) is a poorly understood but distinctive inflammatory hyperplasia. It is an exophytic lesion lined with non keratinised hyperplastic stratified squamous epithelium characterised by acanthosis, papillomatosis and spongiosis. Despite the name, it is not limited to juveniles but it can affect also adults. Its aetiology is unknown and the pathogenesis is controversial. Histological and immunophenotypic similarities suggest that LJSGH may result from a less keratinised junctional or sulcular epithelium. The excisional biopsy was considered the treatment of choice for a very long time. However, new evidence has suggested the efficacy of a conservative approach as it was seen that spontaneous remission of the lesion was possible. Even if LJSGH is not a plaque-induced lesion, the wait-and-see approach involves recall visits to evaluate the periodontal health and to reinforce oral hygiene instructions
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
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