نتایج جستجو برای: dental prostheses
تعداد نتایج: 168908 فیلتر نتایج به سال:
This report describes a clinical technique for fabricating a maxillary implant-supported, removable complete dental prosthesis by using an intraoral digital scanner to register implant positions and soft tissue morphology. The presented technique uses computer-aided design/computer-aided manufacturing (CAD/CAM) technology with a subtractive manufacturing process to fabricate a milled bar (infra...
There has recently been a great demand for the artificial teeth prostheses that are made of materials sintered at 1500 8C, such as zirconia ceramic. It is, however, very difficult for dental technicians to manually fabricate the prostheses with such materials since their degree of strength is very high. For that reason, the prostheses of strong materials have been fabricated by using computer n...
Calibration loss of ovens used in sintering metal ceramic prostheses leads to stress and cracks in the material of the prostheses fabricated, and ultimately to failure of the dental treatment. Periodic calibration may not be sufficient to prevent such consequences. Evaluation methods based on firing supplemental control samples are subjective, time-consuming, and rely entirely on the technician...
BACKGROUND Dental implants have become the most viable option for rehabilitation. Although, many studies report the success of these reconstructions using implants, a cumulative data about the various studies and the failure rate still remain unaddressed. Therefore, the purpose of this systematic review was to analyze these data and to derive the cumulative survival rate of different implant-su...
Open oro-nasal defects resulting after oral tumor resection need structural and functional rehabilitation using dental prostheses. Conventional removable prostheses have usually been indicated and performed for prosthodontics. When the patient has an edentulous maxilla, the unfavorable stability of the prosthesis will cause dysfunction of mastication and pronunciation. To achieve improvement of...
Techniques of rapid prototyping were introduced in the 1980s in the field of engineering for the fabrication of a solid model based on a computed file. After its introduction in the biomedical field, several applications were raised for the fabrication of models to ease surgical planning and simulation in implantology, neurosurgery, and orthopedics, as well as for the fabrication of maxillofaci...
The rehabilitation of patients with dental implant-supported restorations is an ideal treatment option in contemporary dentistry. aim this review was to compile and demonstrate the mechanical response during loading condition, on stress distributions prostheses. findings show that majority stresses were concentrated cervical region implant/abutment interface may can be affected by several clini...
Statement of problem How processing by computer-aided design and manufacturing (CAD-CAM) or traditional chairside fabrication techniques affects the presence defects mechanical properties interim dental prostheses is unclear. Purpose The purpose this in vitro study was to compare effects CAD-CAM versus material on fracture biomechanical behavior 4-unit with without a cantilever. Material method...
PURPOSE To compare and combine dual-energy based and iterative metal artefact reduction on hip prosthesis and dental implants in CT. MATERIAL AND METHODS A total of 46 patients (women:50%,mean age:63±15years) with dental implants or hip prostheses (n = 30/20) were included and examined with a second-generation Dual Source Scanner. 120kV equivalent mixed-images were derived from reconstruction...
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