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Common uses include temporary restoration of teeth, cavity linings to provide pulpal protection, sedation or insulation and cementing fixed prosthodontic appliances. [1] Recent uses of dental cement also include two-photon calcium imaging of neuronal activity in brains of animal models in basic experimental neuroscience. [2]
post only vs. with additional single-circle ring [15] In a classic case one of the best designs for a post to decrease the risk of failure is the narrowest and longest smooth, parallel post that one can fit into the post space. Utilizing the longest possible post ensures that the forces transmitted from the crown are distributed over as much of ...
A dental dam or rubber dam is a thin, 6-inch (150 mm) square sheet, usually latex or nitrile, used in dentistry to isolate the operative site (one or more teeth) from the rest of the mouth. Sometimes termed " Kofferdam " (from German ), it was designed in the United States in 1864 by Sanford Christie Barnum [ de ] . [ 1 ]
Pulp capping is a technique used in dental restorations to protect the dental pulp, after it has been exposed, or nearly exposed during a cavity preparation, from a traumatic injury, or by a deep cavity that reaches the center of the tooth, causing the pulp to die. [1]
The aim of tooth preparation is to preserve more tooth tissue compared to a crown preparation, while giving an adequate amount of protection to the tooth. The preparation of opposing cavity walls should be cut in a way to avoid undercuts in order to gain optimum retention from the cavity shape for the indirect restoration. [ 20 ]
Protect from and prevent bacterial invasion of newly exposed dentinal tubules, leading to pulpal inflammation and necrosis; Prevent gingival growth in the area created by the tooth preparation; Allow area to be cleaned more effectively, decreasing the incidence of bleeding and gingival inflammation at the time of fitting definitive restoration;
There was one family of Christians—a father and a mother and three sons, aged probably 5, 9 and 12, something like that—who sat and played Scrabble together in the main common area and would often hold hands and pray, and sometimes their prayers were so loud I would turn up the volume on the television set until a nurse or a patient yelled ...
Cemented as one unit which may be challenging; Fixed-movable: Non-parallel abutments may be used which avoids extensive tooth preparation; Minor retainers are used so the preparations are more conservative of tooth tissue; Enables small movements of teeth; Cementation is more straightforward as components can be cemented separately