PubMed · 352021
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H Schwickerath. 1978-06-25. [Stability of impression trays].. https://pubmed.ncbi.nlm.nih.gov/352021/
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A smooth wax pattern is imperative to reduce the polishing time of the subsequent casting. The detailed occlusal anatomy is often the most difficult portion of the wax pattern to smooth. This article describes a procedure for making a device that can be used to smooth the detailed anatomy of a wax pattern. It also describes how to use the device.
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Regardless of cause, the treatment of an edentulous patient with microstomia is difficult and often ingenious. Prosthodontic treatment modalities previously described are reviewed. A new type of prosthesis, the collapsible mandibular swing-lock complete denture, is introduced. The prosthesis incorporates a cast cobalt-chromium framework with a lingual hinge and a conventional labial swing-lock. This combination allows the prosthesis to be collapsible while maintaining structural durability. Advantages include ease of insertion and removal while providing maximum coverage for support, retention, and stability. A stepwise technique for the clinical and laboratory phases is described.