نتایج جستجو برای: dental impression materials
تعداد نتایج: 595912 فیلتر نتایج به سال:
Even today when digital impression techniques are gaining in importance, conventional impressions are still standard in daily practice. The decision for a certain impression material depends primarily on the intended treatment and purpose of the model to be created. Alginates have a large and important share of the dental impression market although for decades more technically sophisticated and...
OBJECTIVES The aim of this study was to compare the accuracy of dental implant impressions obtained by a combination of different impression techniques and viscosities of polyvinyl siloxane (PVS). MATERIALS AND METHODS Four parallel fixtures were placed between mental foramina in a master model of lower dental arch. Three different viscosities (putty/light body, medium body/light body, and mo...
INTRODUCTION Dentistry is predominantly a field of surgery, involving exposure to blood and other potentially infectious materials and therefore requires a high standard of infection control and safety practice in controlling cross-contamination and occupational exposures to blood- and saliva-borne diseases. METHODOLOGY A questionnaire survey was conducted in 60 dental colleges throughout Ind...
Evaluation of various characteristics of Plastalgin alginate according to International ISO Standards and ADA specifications Dr. A. Monzavi* - Dr. GH. Omati Shabestari** - Dr. S. Shahabi*** - Dr. F. Hajloo**** *- Associate Professor of Removable Prosthodontics Dept. - Faculty of Dentistry – Tehran University of Medical Sciences. **- Assistant Professor of Removable Prosthodontics Dept. Faculty ...
Objectives: Dental impressions are among the potentially infectious items in dentistry. Dental impressions are invariably contaminated with saliva or blood. Such fluids may contain viral or bacterial pathogens including Bacteroides, Fusobacterium, Porphyromonas and Prevotella. The aim of this study was to assess the effects of three different types of disinfectants on alginate impression materi...
BACKGROUND According to the UK Adult Dental Health Survey (2009) 15% of adults aged 65-74, 30% aged 75-84 and 47% aged >85 years are edentulous and require complete dentures. Patients' quality of life and nutrition status are affected by poor dentures. The quality of the dental impression is the most important issue for improving the fit and comfort of new dentures. There is paucity of RCT evid...
Impressions, dentures and other dental appliances may be contaminated with oral micro-flora or other organisms of varying pathogenicity from patient's saliva and blood. Several approaches have been tried to control the transmission of infectious organisms via dental impressions and because disinfection is less effective and has several drawbacks for impression characterization, several steriliz...
PURPOSE The aim of this study was to compare the accuracy of casts produced by 2 impression techniques and elastomeric impression materials commonly used for the fabrication of implant-supported fixed prostheses. MATERIALS AND METHODS A master model with 4 synOcta ITI implants placed unilaterally in place of the mandibular right central incisor, canine, first premolar, and first molar was con...
An analysis was conducted to evaluate the impact of the broad field of severe plastic deformation, ultrafine-grained materials and nanostructured materials on modern Materials Science. Although this research area was first introduced only two decades ago, citation data are used for major journals in Materials Science to demonstrate that the field has had a remarkable impact. Specifically, the a...
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