The area of the removable restoration that covers the hard palate in the upper jaw is referred to as the palatal plate (fabricated from acrylic or metal) and a section on the edentulous alveolar ridge is referred to as the saddle. Congruency can be restored by relining the denture base. After months and years the bony denture-bearing area resorbs individually by varying degrees (physiological and pressure atrophy). If the resilience of the mucosa is exceeded or if the removable restoration is subjected to repeated rubbing movements, pressure spots may quickly occur. During fabrication, the aim is to achieve uniform fit of the removable restoration base on the jaw using special impression materials and procedures. Generally, removable restorations cover segments which are extended to a greater or lesser extent, supported by and cover the load-bearing mucosa. Telescopic denture (wax try-in, stone model)Īn overdenture completely covers all connectors and corresponds to a full denture. With more expensive restorations the removable section is anchored using retentive and connector elements (possible options are clasps, attachments, telescope crowns, press-stud systems, magnets etc.) on the periodontally-borne, fixed section of the restoration (mainly in the form of crowns or bridges on teeth and implants). Full restorations (full/complete dentures) replace all the teeth in an edentulous jaw (the only prosthetic alternative not involving implants).Ī differentiation is made between less expensive, purely removable restorations (this includes full dentures and clasped dentures retained on natural teeth) and more expensive fixed-removable dentures. Various versions of partial restorations supplement existing teeth and/or implants. Removable restorations are a subcategory of prosthetics.
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