نتایج جستجو برای: gtr
تعداد نتایج: 757 فیلتر نتایج به سال:
In this summary, we describe a new adaptive vector quantization (AVQ) algorithm designed for the coding of nonstationary sources. This new algorithm, generalized threshold replenishment (GTR), di ers from prior AVQ algorithms in that it features an explicit, online consideration of both rate and distortion. Rate-distortion cost criteria are used in the determination of nearest-neighbor codeword...
INTRODUCTION Endodontic-periodontal combined lesion is a clinical dilemma because making a differential diagnosis and deciding a prognosis are difficult. METHODS Twenty-six cases from 14 articles involving the successful management of endodontic-periodontal lesions with concurrent regenerative procedures were reviewed. This article also presents successful treatment of an endodontic-periodont...
Gross total resection (GTR) of glioma is critical for improving the survival rate of glioma patients. One of the greatest challenges for achieving GTR is the difficulty in discriminating low grade tumor or peritumor regions that have an intact blood brain barrier (BBB) from normal brain tissues and delineating glioma margins during surgery. Here we present a highly sensitive, label-free teraher...
Clinical healing following guided tissue regeneration (GTR) in intrabony pockets using a polyurethane membrane was compared to healing following gingival flap surgery (GFS).Ten patients with adult periodontitis and the presence of intrabony defects were selected. Oral hygenictreatments were performed during a 4- weeks period prior to surgery.One intrabony defects on each patient was randomly ch...
A comparison on the amount of root coverage by two techniques: Connective tissue graft and bioabsorbable bovine collagen membrane I* - Dr. H. Golestaneh** zDr. M.T. Chitsa * - Assistant professor of Perodontics Dept. Faculty of Dentistry Tabriz University of Medical Sciences. ** - Assistant professor of Perodontics Dept. Faculty of Dentistry Isfahan University of Medical Sciences. Background...
Conflicting data exist on the combined use of grafting materials and barrier membranes in comparison to guided tissue regeneration (GTR) with membrane alone. The aim of the present study was to compare the clinical outcomes of GTR with collagen membrane (CM) alone (control group) or CM combined with autogenous bone graft (test group 1) or autogenous bone mixed with bioactive glass (test group 2...
Intervention Participants were allocated to 1 of three 30 minute exposure conditions: GTR (n=13); SBU (n=17); and exposure alone (n=12). Exposure consisted of 2 BATs: a claustrophobia chamber (BAT 1) and a tall filing cabinet (BAT 2). All participants were told that claustrophobia is driven by concerns about lack of fresh air or being trapped. The GTR group was told of the efficacy of eliminati...
The research on human cognition has recently benefited from the use of the mathematical formalism of quantum theory in Hilbert space. However, cognitive situations exist which indicate that the Hilbert space structure, and the associated Born rule, would be insufficient to provide a satisfactory modeling of the collected data, so that one needs to go beyond Hilbert space. In Part I of this pape...
Barrier membranes that are used for guided tissue regeneration (GTR) therapy usually lack bioactivity and the capability to promote new bone tissue formation. However, the incorporation of an osteogenic agent into polymeric membranes seems to be the most assertive strategy to enhance their regenerative potential. Here, the manufacturing of composite electrospun membranes made of poly (ε-caprola...
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