3,038 research outputs found
Clinical management of a peri-implant giant cell granuloma
Purpose. Implant therapy plays an important role in contemporary dentistry with high rates of long-term success. However, in recent years, the incidence of peri-implantitis and implant failures has significantly increased. The peripheral giant cell granuloma (PGCG) rarely occurs in peri-implant tissues and it is clinically comparable to the lesions associated with natural teeth. Therefore, the study of possible diseases associated with dental implants plays an important role in order to be able to diagnose and treat these conditions. Materials and Methods. This report described a 60-year-old Caucasian male who presented a reddish-purple pedunculated mass, of about 2 cm in diameter, associated with a dental implant and the adjacent natural tooth. Results. An excisional biopsy was performed and the dental implant was not removed. Histological examination provided the diagnosis of PGCG. After 19-month follow-up, there were no signs of recurrence of peri-implantitis around the implant. Conclusion. The correct diagnosis and appropriate surgical treatment of peri-implant giant cell granuloma are very important for a proper management of the lesion in order to preserve the implant prosthetic rehabilitation and prevent recurrences
Childhood overweight-obesity and periodontal diseases: is there a real correlation?
Objective. The association between obesity and periodontitis has been extensively investigated in adults but not in young people. The aim of this study was to examine the association between overweight-obesity and periodontal disease in pediatric subjects.
Methods. Controlled cross-sectional study involving 100 school children of both gender (50 M and 50 F) between 7 and 12 years of age (mean age 9,19 +/- 1,57). Two groups were formed based on Body Mass Index value: test group with BMI >= 25 Kg/m(2) and control group with BMI <= 24 Kg/m(2). Diet intake and oral hygiene habits were recorded by a specific questionnaire and the periodontal clinical parameters were evaluated.
Results. The periodontal examination in the control group revealed a full-mouth plaque score (FMPS) value equal to 21.86% against 50.08% in the group of patients overweight/obese; the full-mouth bleeding score (FMBS) in the control group amounted to 12.7% against 26.24% of test group. No patient in either group included in the study presented a probing pocket depth (PPD) >= 3, so a significant difference regarding this value was not found. Regarding the frequency and quantity of food consumption, the number of obese patients who did not follow a balanced diet largely exceeded the number of normal-weight patients (70 versus 20%).
Conclusions. These results focus the attention on the negative impact of obesity on gingival health in young subjects, probably due to a combination of metabolic and inflammatory profiles and the result of a careless attitude towards prevention diseases of the oral cavit
Analisi dei costi e benefici di Google Cloud Platform per algoritmi di Machine Learning
Al giorno d’oggi sempre più aziende richiedono una maggiore flessibilità da poter applicare nell'esecuzione dei propri task computazionali. In questa tesi si vuole svolgere un'analisi dei costi e benefici che Google Cloud Platform (GCP), uno dei leader tra le suite di servizi di cloud computing, offre per l'esecuzione di algoritmi di machine learning. Vengono presentate diverse metodologie con le quali è possibile eseguire questi algoritmi sulla piattaforma in cloud di Google. In particolare, viene approfondito il tema della conteinerizzazione per creare un framework di automatizzazione che riesca ad eseguire algoritmi di machine learning, sfruttando l'efficienza prestazionale dei software container. Si svolge quindi una serie di test ed un confronto, in termini di costi e benefici, tra Google Cloud Platform ed un cloud tradizionale fornito da un provider privato
Assessing the Nature Reserve Management Effort Using an Expert-Based Threat Analysis Approach
In this note, we suggest the adoption of expert-based approaches for threat analysis to allow an assessment of the magnitude of efforts of wildlife management actions. Similar to what is proposed for expert-based quantification of threat events, in wildlife management this approach can be applied by assigning a score to the extent of the areas affected by management, their frequency and intensity of action, supporting the decision-making process and optimizing the management strategies, both ordinary (for example, in the operational management of nature reserves) and extraordinary (for example, within specific target-oriented conservation projects). Quantifying and defining priority ranks among management events can be useful: (i) to compare managed areas with each other or the same areas in different times; (ii) to adjust the allocation of resources among alternative management actions (assigning more or less resources in terms of time, budget, operators, and technology). Finally, similar to what is done in the threat analysis approach, managers could compare the effort (magnitude) of management at different times. We report, as an example, a first quantification for a case study carried out in a coastal nature reserve
Orientamento sessuale vs. comportamento sessuale. Il divieto di donare il sangue per i "men who have sex with men"
Progresso scientifico e discriminazioni dissimulat
Mapping of Aedes albopictus abundance at a local scale in Italy
Given the growing risk of arbovirus outbreaks in Europe, there is a clear need to better
describe the distribution of invasive mosquito species such as Aedes albopictus. Current challenges
consist in simulating Ae. albopictus abundance, rather than its presence, and mapping its simulated
abundance at a local scale to better assess the transmission risk of mosquito-borne pathogens
and optimize mosquito control strategy. During 2014–2015, we sampled adult mosquitoes using
72 BG-Sentinel traps per year in the provinces of Belluno and Trento, Italy. We found that the sum of
Ae. albopictus females collected during eight trap nights from June to September was positively related
to the mean temperature of the warmest quarter and the percentage of artificial areas in a 250 m
buffer around the sampling locations. Maps of Ae. albopictus abundance simulated from the most
parsimonious model in the study area showed the largest populations in highly artificial areas with
the highest summer temperatures, but with a high uncertainty due to the variability of the trapping
collections. Vector abundance maps at a local scale should be promoted to support stakeholders and
policy-makers in optimizing vector surveillance and control
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