1,720,961 research outputs found
Criticisms and controversies in the diagnosis of cheilitis
Get PDFThe term “cheilitis” refers to an inflammatory condition of the lip and encompasses anheterogeneous group of lesions of different etiology, clinical aspects, management and prognosis [...
Diode laser for treatment of peri-implantitis
No full textIntroduction: Prosthetic implant rehabilitations for partial or complete edentulous patients are increasing, sometimes followed by failure due to peri-implantitis, irreversible disease characterized by tissue inflammation, bleeding, probing pocket depth ≥4 mm, bone loss, with/out purulent exudate. Therefore, there are many clinical studies about treatment possibilities. Decontamination of peri-implantitis pockets is one of diode laser applications in dentistry. Despite there is no standardized protocol, the Literature has reported the effectiveness of diode laser decontamination, because of its photothermal effect and photochemical action, and it is suggested as a non-surgical supportive modality for the treatment of peri-implantitis. Materials and methods: This study was carried out on 22 patients of MoMax unit at the Department of Oral and Maxillofacial Sciences of “Sapienza” University of Rome, from March 2016 to July 2017. Inclusion criteria were: age between 20 and 80 years old, presence of at least one single implant, Probing Pocket Depth (PPD) ≥4 and <6 mm, positive Bleeding On Probing (BOP) at implant site and good compliance. Patients were divided into two equal groups: Control Group (CG) and Test Group (TG). Clinical and radiographic examination with ortho-panoramic x-ray and professional oral hygiene were performed in both groups. Only in TG, the sulcus of each implant was divided into 6 sites, and decontamination of the infected pockets was performed by diode laser with wavelength of 980 nm (Raffaello®, Dental Medical Technologies, Lissone, Italy), spot diameter of 0,3 mm, power of 1 W, and energy density of 14,1 J/cm2, in pulsed mode, Ton=10 ms, Toff =50 ms. Laser was applied in the sulcus for 10 seconds on each site. At last, 2% chlorohexidine gel was applied in the sulcus for 5 minutes. The PPD and BOP were evaluated at 12 weeks for both TG and CG. T Student test was used for the statistical analysis of BOP and PPD averages. Results: In the TG, the PPD reduction average was 1.06±0.54 mm at follow-up while BOP was decreased by 83%. In the CG, PPD reduction average was 0.26±0.2 and BOP was decreased by 33±8.06%. A significant statistical difference was found between two groups (p <0.000001). Conclusions: We can conclude that diode laser can be a supportive modality for the non-surgical conventional therapy, as it accelerates the healing process in cases of severe peri-implantitis. Larger cohorts of patients are needed to have more reliable results
L-PRF in associazione alla Low Level Laser Therapy nel management delle MRONJ: case-series
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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
CO2 laser for surgical treatment of impacted canines
No full textINTRODUCTION
Impaction is defined as the failure of tooth eruption at its correct site in the dental arch, in its normal period of growth. The permanent maxillary canine is the most commonly impacted tooth after third molars, it has a predilection for the oral side with a tendency to be unilateral. It is more common in females. The etiology is unclear: orally impacted canines can be associated with hypoplastic or missing lateral incisors or with aplasia of premolars, presence of supernumerary teeth and malpositioned third molars.
There are many possible surgical techniques to approach impacted canines: early interceptive intervention or late intervention, including extraction, autotransplantation, surgical exposure of the canine’s crown with open or closed technique and subsequent orthodontic alignment. The choice depends on canine position, associated malocclusion, skill and experience of orthodontist and surgeon, patient compliance.
Literature reports that High-Intensity Laser Therapies (HILT) with cutting action on the soft tissues, can also be used for opercolectomy of impacted tooth.
MATERIALS AND METHODS
A 13-years-old male referred to the Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, for an orthodontic examination because of the maxillary primary canines persistence in dental arch. Orthopanoramic x-ray showed osteomucosal impaction of both permanent maxillary canines. The family history revealed that patient’s mother had the same orthodontic problem. Cone Beam CT was requested to plan the surgical-orthodontic treatment. Surgical exposure of the impacted canines was performed using a CO2 laser (Smart US20D®, DEKA-Florence, Italy) and subsequent periodontal wrap application. No orthodontic devices were applied for impacted teeth traction on dental arch. Canines movement towards the dental arch was monitored at 1, 8 and 16 weeks post-surgery with intraoral scanner CS3500 (Carestream Dental). When canines crowns were completely erupted on palatal side, the alignment in the arch with direct/indirect bonding technique was performed.
RESULTS
Complete disimpaction of canines crown was obtained in only four months.
CONCLUSIONS
As mentioned in Literature, this case confirms that impacted canines exposure with CO2 laser has advantages if compared with traditional surgery: no bleeding during and after procedure, no need to use sutures and laser biostimulating effect allow spontaneous eruption faster than with conventional treatments
Variations on the Author
Get PDF“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
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