Influence of different cantilever extensions and glass or polyaramide reinforcement fibers on fracture strength of implant-supported temporary.
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A review of dental CAD/CAM: current status and future perspectives from 20 years of experience.
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In this article, we review the recent history of the development of dental CAD/CAM systems for the fabrication of crowns and fixed partial dentures (FPDs), based on our 20 years of experience in this field. The current status of commercial dental CAD/CAM systems developed around the world is evaluated, with particular focus on the field of ceramic crowns and FPDs. Finally, we discuss the future perspectives applicable to dental CAD/CAM. The use of dental CAD/CAM systems is promising not only in the field of crowns and FPDs but also in other fields of dentistry, even if the contribution is presently limited. CAD/CAM technology will contribute to patients' health and QOL in the aging society. (+info)
The role of surface treatments on the bond between acrylic denture base and teeth.
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Reinforcement effects of fiberglass on telescopic dentures using a three-dimensional finite element analysis and fracture test.
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The purpose of this study was to evaluate the reinforcing effect of fiberglass on composite resin retainers of the telescopic dentures. A finite element method was used to assess the effect of the abutment height and the embedment of the fiberglass on the stress distributions of the retainers. The experimental retainers of Poly(methylmethacrylate), composite resin (CR) and the fiber-reinforced composite resin (FRC) were used in the fracture test. The fracture load of the FRC retainers were significantly greater than those of the other retainers. The embedment of the fiberglass reduced the stress at the upper surface of the CR retainers. The fracture origin in the CR retainers was seen on the upper surface, while that of the FRC was at the cervical region near the abutment. These results suggest that the change in the fracture pass by the fiberglass increased the fracture resistance of the CR retainer. (+info)
Influence of anatomic reference on the buccal contour of prosthetic crowns.
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Use of distal implants to support and increase retention of a removable partial denture: a case report.
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Lack of adequate support (tooth/soft tissue) results in displacement of bilateral and unilateral distal extension removable partial dentures. Placement of implants is one option for managing this problem. The aim of this report is to describe fabrication of a mandibular removable partial denture supported by 2 unilateral distal implants with locater attachments. The patient was a 70-year-old man who was missing the right mandibular premolars and molars. After an uneventful 3-month healing period, the locater abutments were tightened on the implants. At a recall appointment 18 months later, neither of the implants had been lost, but some marginal bone loss (mean 0.3 mm, standard deviation 0.1 mm) was noted. The patient reported no displacement of the distal extension removable partial denture. This case report suggests that distal implants may help to prevent displacement of distal extension removable partial dentures, and may be especially suitable for patients who cannot afford implant-supported fixed dental prostheses. (+info)
Biomechanical analysis of the stresses generated by different disocclusion patterns in an implant-supported mandibular complete denture.
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