1,721,015 research outputs found
Valutazione del comportamento sovra-sottosterzante di un autoveicolo mediante banco handling
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Adjunctive benefit of a xenogenic collagen matrix associated with coronally advanced flap for the treatment of multiple gingival recessions: A superiority, assessor-blind, randomized clinical trial
No full textAim: To evaluate the superiority of coronally advanced flaps (CAFs) when used in combination with a xenogeneic collagen matrix (CMX) for root coverage of multiple adjacent gingival recessions. Materials and Methods: Participants with at least 2 upper adjacent teeth exhibiting gingival recession depth ≥2 mm were recruited and randomized to CAF with (test) or without (control) CMX, respectively. Mean and complete root coverage, amount of keratinized tissue (KTw), gingival thickness (GThick) and patient-reported outcomes (PROMs) were recorded at baseline, 3, 6 and 12 months. Results: Twenty-four patients providing 61 gingival recessions were analysed. After 1 year, gingival recession depth decreased from 2.3 ± 0.7 to 0.3 ± 0.4 mm in the CAF + CMX group (2.0 ± 0.8 mm meanRC) and from 2.6 ± 1.0 to 0.6 ± 0.3 mm in the control group (2.0 ± 1.1 mm meanRC). No difference was observed between the two groups (p = 0.2023). Nineteen (63%) of the test and 16 (52%) of control defects showed complete root coverage (p = 0.4919). GThick greatly increased in the test group (0.5 mm; 0.2–0.8 mm, 95% CI; p = 0.0057). No difference between the two groups was observed for KTw (p = 0.5668) and PROMs. Conclusion: At 1 year, CAF + CMX provided similar root coverage to CAF alone, but a significant increase in gingival thickness
Infezione da TT virus nei tessuti parodontali: studio controllato clinico e di laboratorio
No full textEFFICACY OF FOUR MOTIVATIONAL TECHNIQUES FOR IMPROVING ORAL HYGIENE. TWO-YEAR FOLLOW-UP OF A RANDOMISED CONTROLLED TRIAL
No full textPURPOSE. The aim of this randomised clinical trial with blinded examiner was to compare the efficacy of four different methods of enhancing oral hygiene motivation in: (i) re-ducing the full-mouth plaque score (FMPS) and full-mouth bleeding score (FMBS); (ii) modifying patient behaviour; (iii) the amount of intervention time required; and (iv) the degree of patient satisfaction at two-year follow-up. MATERIALS AND METHODS. In a private practice, 100 subjects aged 18-75 years with at least 20 teeth/implants and an FMPS ≥40% were consecutively recruited. From baseline to two-year follow-up, subjects were randomly allocated to four different oral hygiene motivational techniques: standard oral hygiene instructions (SOHI), reading a pamphlet (P), watching a video (V), or Brief Motivational Interview (BMI). The outcome variables considered were: reduction in FMPS, reduction in FMBS, frequency of daily tooth brushing, frequency of daily flossing, motivational intervention time, degree of patient satisfaction, patient perception of oral health (by means of a questionnaire), and number of teeth lost in association with each method. A single operator delivered all motivational sessions and professional oral hygiene at baseline, and 1, 3, 6, 12, 18, and 24 months. Another operator, blinded to the methods used, recorded the variables at base-line, and at 6, 12, 18, and 24 months. RESULTS. At 24-month follow-up, there were no significant differences between the four tested methods in either FMPS (-20.9 for SOHI,-23.1 for P,-25.1 for V, and-27.1 for BMI; P = 0.4407), FMBS (-1.9 for SOHI,-3.1 for P,-0.7 for V, and-4.0 for BMI; P = 0.3110), degree of patient satisfaction (P = 0.3559), improvement in perception of oral health (P = 0.8069), frequency of daily flossing (P = 0.2118), or number of teeth lost (P = 0.2108). Although the total time required for motivation was significantly greater for the BMI as compared to all other techniques (P <0.0001), the frequency of daily tooth brushing significantly increased after BMI as compared to SOHI and V (the difference between BMI and SOHI was 0.6; 95%CI from 0.2 to 1.0, and the difference between BMI and V was 0.5 95%CI from 0.0 to 0.9; P = 0.0022). CONCLUSIONS. All tested methods improved FMPS and FMBS and were appreciated by all subjects. The change in patient behaviour was more pronounced in the BMI group, but the intervention time required was greater than for the other techniques; nevertheless, it was compatible with a professional oral hygiene session of one-hour duration
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
Clinical Management of Gingival Recessions with or Without Cervical Lesions: A Decisional Scheme Proposal
No full textBackground: Treatment of gingival recessions starts from an accurate diagnosis considering both periodontal tissue status and adjacent exposed dental tissues. Based on current scientific evidence and the authors’ clinical experience, a decisional scheme has been proposed for the management of gingival recession defects, with or without non-carious cervical lesions, taking into account gingival thickness and interproximal attachment levels. To illustrate its practical application, a series of representative clinical cases is presented, documenting the rationale and outcomes of the therapeutic decisions. Methods: According to the 2017 World Workshop Classification of Periodontal and Peri-Implant Diseases and Conditions, the gingival recession defect classifications have been used to build up a decision-making therapeutic process. Combined periodontal and restorative treatments in presence or absence of dental lesions have been performed. Results: In case of an identifiable cemento-enamel junction (CEJ) with or without non-carious cervical lesions (class A+ and class A−, respectively) and absence of interproximal attachment loss (RT1), flap approaches alone or in combination with connective tissue graft (CTG) were suggested. In case of an unidentifiable CEJ without cervical lesion (class B−), flap approaches alone were proposed in presence of adequate residual keratinized tissue (KT) and absence of interproximal attachment loss (RT1); if KT is extremely reduced, flap approaches + CTG may be performed. If the unidentifiable CEJ is associated with cervical lesions involving both root and crown surfaces (class B+), the combined restorative–periodontal treatment results as the most indicated approach. The adjunctive use of CTG should be also considered in presence of interproximal attachment loss (RT2 and RT3) and reduced gingival thickness (<1 mm). Conclusions: The proposed decisional scheme could be useful to address the clinicians during the decision-making process in the treatment of gingival recessions
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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