1,721,043 research outputs found
Teeth and oral mucosa in neurocutaneous syndromes, metabolic diseases and in diseases with defects of DNA repair [La mucosa orale e i denti in sindromi neurocutanee, malattie metaboliche e nelle malattie caratterizzate da difetti di riparo del DNA.]
No full textOral mucosa is frequently involved in a group of genetic diseases, which affect the skin and other organs, particularly the central nervous system. The lesions may be of characterized by inflammations in neurocutaneous syndromes and by tumoral lesions in those diseases with defects of DNA repair. The teeth are mainly involved in progeria, while jaw keratocysts are highly characteristic in Gorlin's syndrome
Anomalie ereditarie dei denti e della mucosa orale in sindromi complesse caratterizzate da iper o ipotricosi
No full textdescrizione clinica di anomalie ereditarie degli elemnti dentali e della mucosa del cavo orale in pazienti sindromici con ipo e iper tricos
Patologie della mucosa orale ed anomalie dentarie nelle epidermolisi bollosa acquisita (EBA) e nella dermatite bollosa a IGA lineare.
No full textVedasi l'allegat
Comparative analysis of direct and indirect implant impression techniques an in vitro study
No full textImplant impression and transfer of the implant position to a working cast for rehabilitative purposes not always represent a predictable reconstructive step. The variable results depend on the transfer technique utilized and on the accuracy of the impression materials. The aim of this study was to compare the accuracy of the direct and indirect impression techniques and to analyze the distortion of different impression materials. An edentulous acrylic resin mandible was used as reference model: in the cuspid position 2 laboratory analogs were inserted perpendicularly to the occlusal plane and fastened with resin. Two impressions for each indirect and direct recording techniques with 4 different impression materials were made. Polyvinyl siloxanes were used for the repositioning implant level method. Polyethers were used for the ''pick up'' impression technique. Analysis of cast distortion was measured computing the inter-implant position on the developed models compared to that of the master model. Measurements were recorded by a digital caliper. The results of this in vitro study demonstrate that the direct impression technique is preferable to the indirect one and that the Impregum polyether impression material is the most precise when used in association with a direct technique
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
A 3-day randomised clinical trial to investigate the desensitising properties of three dentifrices
No full textBackground: Aim of the study was to evaluate the relative abilities of three desensitizing dentifrices to the rapid relief of dentinal hypersensitivity (DH). Methods and Materials: Using a double-blind, randomized design, three dentifrices [1) containing 8% arginine, 1450ppm sodium monofluorophosphate; 2) containing 8% strontium acetate, 1040ppm sodium fluoride; 3) containing 30% micro-aggregation of zinc-carbonate hydroxyapatite nanocrystals] were compared after 3-day treatment. Participant’s DH was evaluated at baseline and after 3 days using Airblast, Tactile, Cold water and Subjective tests. Results: The final sample consisted of 85 subjects: 29 received the arginine-based dentifrice (group 1); 27 the strontium acetate-based dentifrice (group 2); 29 the dentifrice based on zinc-carbonate hydroxyapatite (group 3). All dentifrices were largely effective to reduce DH: the percentage of score reduction from baseline to 3 days was greater than 30% for all tests (except for subjective test of group 2). The comparison among the three dentifrices showed that after 3 days there was an improvement in Airblast (mean percentage of reduction 39.2% in group 1; 42.0% in group 2; 39.2% in group 3), Cold water (41.5%; 51.8%; 50%), Tactile (50.3%; 40.1%; 33.8%) and Subjective (33.1%; 17.4%; 31.4%) test scores, with differences being significant for Cold Water and Subjective tests. For Airblast and Tactile tests there were no significant differences across groups at 3 days. Moreover, no significant differences at any test were observed in a subset of patients that were followed up to 8 weeks: all dentifrices were all highly efficacious. Conclusions: This study documented that the three tested dentifrices significantly reduced DH after 3-day treatment, supporting their utility in clinical practice. This is the first report documenting the rapid relief from DH of a zinc-carbonate hydroxyapatite dentifrice
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