1,720,968 research outputs found
Complete root coverage of denuded root surface using expanded polytetrafluoroethylene membrane in conjunction with tetracycline root conditioning and fibrin/fibronectin glue application: Case reports
No full textA new surgical technique can promote complete root coverage in deep and wide recessions. A root isolation procedure with expanded polytetrafluoroethylene membrane is combined with tetracycline treatment of the root surface and fibrin-fibronectin glue application. Treatment of two patients resulted in the disappearance of the anatomic defect and an increase in the amount of keratinized gingiva
Four-year stability of root coverage following GTR
No full textThe purpose of the present study was to evaluate the stability of soft tissue conditions in gingival recession defects treated with GTR. The study population was selected among those patients who had been treated with GTR procedures for Miller’s Class I or II, deep ( 3 mm), buccal gingival recession defects. Defects were included only when they had revealed recession depth reduction 2 mm and root coverage 60% at 6 months following GTR treatment. These defect were regarded as successfully treated and scheduled for further monitoring. 20 patients, 11 males and 9 females, aged 23 to 57 years (mean age: 33.2 years), each contributing one defect, were selected. 9 patients were smokers ( 10 cigarette per day). Recession depth (RD), probing depth (PD), clinical attachment level (CAL), and width of keratinized gingiva (KG) were assessed immediately before surgery (presurgery examination), at 6 months posturgery (baseline examination), and at 4 years postsurgery (4-year examination). At baseline examination, RD reduction was 3.6 0.9 mm (mean root coverage: 80%). CAL gain amounted to 4.2 1.3 mm, 60% of the defects showing CAL gain 4 mm. KG increased from 1.9 1.2 mm at presurgery examination to 3.1 0.9 mm at baseline examination. At 4-year examination, no significant changes from baseline RD, CAL and KG recordings were observed. Differences in baseline-4 year changes between smokers and non-smokers were not statistically significant. The results of the present study demonstrate that clinical outcome achieved following GTR procedure in gingival recession defects can be mantained over periods up to 4 years. This study was partly supported by MURST Grant #97/60/06/01
GBR and Autogenous Cortical Bone Particulate by Bone Scraper for Alveolar Ridge Augmentation: A 2-Case Report
No full textImplant prosthetic rehabilitation for patient with monolateral cleft lip and palate. A clinical report
No full textCleft lip and palate (CLP) is a malformation of genetic derivation. Nonsyndromic cleft of the lip and/or palate derives from an embryopathy with failure in terms of fusion of the nasal process and/or palatal shelves.
For patients affected by CLP procedures of guided bone regeneration by autologus bone grafting are recognized as the most effective procedures to close oro-nasal communication.
The residual gap of alveolar ridge, determined by the absence of one or more permanent teeth, can be completed by implant-prosthetic rehabilitation. This therapeutic option offers different advantages:
− abbreviation or circumvention of orthodontic treatment period;
− maintenance of symmetric appearance of the maxillary anterior dentition in cases of unilateral cleft;
− preservation of the hard tissues of abutment teeth adjacent to the lacuna;
− support of grafted bone height.
This work describes the rehabilitation of a 19 year-old patient affected by right unilateral CLP with use of titanium implant supporting a single crown, to replace 1.2.
The technique used was particularly helpful for this cleft case, in which a bone deficit subsisted after secondary bone grafting. An additional bone-grafting procedure was necessary at the same time of implant placement, and it was done to achieve best functional and aesthetics results.Cleft lip and palate (CLP) is a malformation of genetic derivation. For patients affected by CLP, procedures of guided bone regeneration by autologous bone grafting are recognized as the most effective to close oronasal communication. The residual gap of alveolar ridge, determined by the absence of 1 or more permanent teeth, can be completed by implant-prosthetic rehabilitation. This kind of rehabilitation for patients with CLP has the aim of completing dental reconstruction by avoiding sacrifice of adjacent teeth and preserving symmetric appearance. This article describes the rehabilitation of an 18-year-old patient affected by right unilateral CLP with use of a titanium implant supporting a single crown to replace the lateral incisor. The technique used was particularly helpful for this cleft case, in which a bone deficit subsisted after secondary bone grafting. An additional bone grafting procedure was performed at the time of implant placement to achieve the best functional and esthetic results. © 2009 by Quintessence Publishing Co Inc
GTR with bioabsorbable membrane in the treatment of human gingival recession defects
No full textThe purpose of the present study was to evaluate the effect of GTR procedure in comparison to subpedicle connective tissue graft (SCTG) in the treatment of gingival recession defects. A total of 12 patients, each contributing a pair of Miller's Class I or II buccal gingival recessions was treated. According to a randomization list, in each patient one defect received a polyglycolide/lactide bioabsorbable membrane, while the paired defect received a SCTG. Treatment effect was evaluated 6 months postsurgery. Clinical recordings included full-mouth and defect-specific oral hygiene standards and gingival health, recession depth (RD), recession width (RW), probing depth (PD), clinical attachment level (CAL) and keratinized tissue (KT). Mean RD significantly decreased from 3.1 mm presurgery to 1.5 mm at 6 months postsurgery fo the GTR group (48% root coverage), and from 3.0 mm to 0.5 mm for the SCTG group (81% root coverage). RD reduction and root coverage were significantly greater in SCTG group compared to GTR group. No significant differences in PD changes were observed within and between groups. KT increased significantly from presurgery for both treatment groups, however gingival augmentation was significantly greater in the SCTG group compared to GTR group. Results indicate that 1) treatment of human gingival recession defects by means of both GTR and SCTG procedures results in clinically and statistically significant improvement of soft tissue conditions of the defect, and 2) treatment outcome was significantly better following SCTG compared to GTR in terms of recession depth reduction, root coverage and keratinized tissue increase. This study was partly supported by W.L. Gore Associates Inc. and MURST Grant #96/60/06/01
Studio sulla profilassi e l'incidenza di complicanze gravi nell'ambulatorio odontoiatrico
No full text
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
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