1,720,971 research outputs found
Rimozione di fibroma ossificante interincisivo tramite laser a diodi. Inter-incisor ossifying fibroma removal by diode laser
No full textIl caso in esame riguarda una paziente giunta alla nostra osservazione, inviata dal suo odontoiatra di fiducia, per una tumefazione del mascellare superiore. La paziente, di 74 anni e proveniente da Capoverde, è affetta da ipertensione arteriosa in trattamento con diuretici, riferiva un’allergia alle penicilline e affermava di non assumere alcolici e di non utilizzare tabacco.
All’esame clinico si evidenziava la presenza di una lesione esofitica, di circa 1,5 cm di diametro, sessile, con mucosa superficiale eritematosa, di consistenza duro-elastica, in zona interincisiva. Inoltre, si osservava la malposizione degli elementi dentali 1.1 e 2.1, che mantenevano la loro vitalità. La paziente si presentava con una radiografia ortopanoramica, dalla quale non si evidenziavano segni di coinvolgimento osseo del processo alveolare e delle zone limitrofe alla lesione.
La paziente, inoltre, riferiva l’assenza di sintomatologia spontanea ma la presenza di algie provocate da traumatismi durante la fonazione, la masticazione e le manovre di igiene orale, con conseguente sanguinamento della lesione.
Valutati tutti gli elementi, eseguiti gli esami ematochimici di routine e ottenuto il consenso informato all’intervento chirurgico, si programmava una biopsia escissionale tramite laser a diodi 980 nm (Raffaello®, DMT, Lissone MB, Italia). Il giorno dell’intervento si procedeva alla somministrazione di anestetico locale a base di mepivacaina cloridrato senza vasocostrittore, per evitare una riduzione dell’efficacia di taglio del laser a diodi 1 dovuta all’ischemizzazione dei tessuti.
La lesione veniva immobilizzata e trazionata tramite pinza di Allis. Il laser a diodi veniva impostato ai parametri di 2.5 watt di potenza, in modalità di emissione continua, fibra ottica di 320 μm e con una fluenza pari a 1,5 kJ/cm2 e la lesione veniva agevolmente rimossa.
Controllata l’emostasi, non venivano applicati punti di sutura e si lasciava guarire la ferita chirurgica per seconda intenzione.
Per il decorso post-operatorio venivano prescritte applicazioni locali di antisettico a base di clorexidina 0,2% (2 volte/die per 10 gg) e applicazioni locali di gel a base di acido ialuronico (3 volte/die per 15 gg) e paracetamolo 1000 mg al bisogno.
La paziente eseguiva le visite di controllo post-chirurgico dopo 7, 15 e 30 giorni, in cui si osservava la progressiva e completa guarigione del sito chirurgico. La paziente, inoltre, non riferiva né complicanze né sintomatologia dolorosa nel periodo di convalescenza.
L’esame istologico riportava la diagnosi di un’iperplasia fibrosa con presenza di metaplasia ossea, compatibile con il quadro di fibroma ossificante periferico
Pervasive Games as Web-applications: A Case Study based on a Laser Game
Full text linkWith the amazing success of PokemonGo, pervasive games have definitely caught the attention of the entire world. Their game experience is characterized by the fusion of real and virtual elements. In order to be able to extend the virtual world into the real one, such games have to access the mobile devices sensors like GPS and camera. For this reason, they are implemented as native or hybrid mobile applications. Contrary to this trend, in this paper we present Shoot Them All, a pervasive game implemented as a web application. In Shoot Them All, players have to hit the opponents, trying, at the same time, not to get hit. The battlefield is the real world, while the guns are virtual, as an extension of players' mobile devices. We were able to successfully developed such a game thanks to the availability of Javascript APIs that allow to access and manage device sensors. The success of this case study highlight how these technologies are mature enough, opening the door to web pervasive games
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
Efficacy of Photobiomdoulation in a conservative non surgical management of stage II medication-related osteonecrosis of the jaw (MRONJ): a case report
No full textBackground: Medication Related Osteonecrosis of the Jaw (MRONJ) has been reported as a side effect of antiresorptive and antiangiogenic medications. Risk factors in addition to antiresorptive therapy have been identified. These include oral surgical procedures with extractions, radiation therapy, chemotherapy, diabetes and smoking. Photobiomodulation (PBM) is a non invasive method with biostimulating effects on soft and hard tissues.
Aim of the Study: To propose a non-surgical conservative treatment through photobiomodulation for the osteonecrosis of the jaws related to the drug - stage 2.
Methods: A female Patient attended at Department of Oral and Maxillofacial Sciences of Sapienza University of Rome. She was treated with zoledronic acid for lung carcinoma and osteoprosis; subsequently developed MRONJ in the maxilla (26, 27). The management protocol included oral hygiene, antibacterial mouth rinses (chlorhexidine), 2g per day of Amoxicillin and Clavulanic Acid, 1g per day of Metronidazole and photobiomdodulation (3Cycles) was performed by using a multi-diode laser. The PBM applications consist in 8 sessions per cycle using a multi-diode laser (Lumix C.P.S. Dental, FISIOLINE, Verduno, Cuneo, Italy) emitting simultaneously at 650nm,810 nm, and 910nm, total power 0.6 W,30 kHz, 15mins, and Total Energy of 577.4J in scanning mode.
Results: After 13 months; healing of the MRONJ site was observed. PBM stands out among supportive approaches because of its favorable effects on tissue healing.
Conclusion: This case may suggest that this kind of combined approach during MRONJ treatment allows performing a faster with more comfortable healing process and it represents an innovative, conservative non surgical protocol
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
Photodynamic therapy on a biofilm monospecie of candida albicans: an in vitro study
Full text linkAntimicrobial photodynamic therapy (aPDT) is a medical treatment based on the use of a light source at a specific wavelength that activates a photosensitive molecule causing the formation of oxidizing agents that provokes the death of the target cells. The aim of this study was to evaluate the activity of aPDT against biofilms of Candida albicans. Biofilms of C.albicans were subjected to aPDT using a diode GaAlAs (λ:635nm) and a toluidin blue solution (0.1mg/ml) as photosensitizer.
Three different protocols (1 minute, fluence 24J/cm2; 2 minutes, fluence 48J/cm2 and 3 minutes, fluence 72J/cm2) were tested. To evaluate the number of Candida cells in biofilm before and after treatment, Bio Timer Assay was used. Candida biofilms treated with aPDT showed significant reductions of the microbial population as compared to the control groups. aPDT showed good antifungal properties in vitro. Clinical trials are needed to test its efficacy in vivo and to propose it as an adjuvant or alternative therapy to conventional medical treatment
Prevalenza di bassi livelli di colesterolo HDL e correlazione con il grado di controllo glicometabolico in pazienti con diabete di tipo 2.
No full textIn vivo clinical and histological thermal effect of a 445 nm diode laser on oral soft tissues during a biopsy
Full text linkBlue diode laser emits a 445 nm wavelength light, which is extremely effective with hemoglobin, and has an optimal hemostatic effect. This work analyzes its thermal effects and clinical efficacy, when used to perform excisional biopsies. Forty-two excisional biopsies were performed with the laser; then, the extent of perincisional thermal effects was evaluated and patients were followed up. Average alteration on epithelial tissue was 507.07 μm, and on connective tissue was 320.39 μm. In all the cases, it was possible to obtain a histological diagnosis. Diode lasers can be safely used to perform biopsies; various intra-and postoperative advantages were confirmed
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