Category: R

A mold made from refractory material into which metal is cast.  

A die made of a material that will not deteriorate at the high temperatures used during firing or casting procedures.  

Persistent; patients or sites that continue to demonstrate disease after appropriate therapy. In psychiatry, a term most frequently used to describe disorders or symptoms that do not respond to treatment (e.g., “treatment-refractory depression”). The term resistant is often used interchangeably with refractory. Difficult or impossible to treat, or not responding to treatment. Applied to a…

The elevation and folding back of all, or part, of the soft tissue to expose the underlying structures. A counseling technique whereby feelings are clarified by their restatement by the counselor. The image of somebody or something which is seen in a mirror or still water. The process of reflecting something, especially light, sound or…

The measure of the fraction of radiant energy that is reflected from a surface. The fraction of total light reflected after it hits a surface, and the angle at which it is reflected.  

Symptoms perceived in tissues distant to and unrelated to the true diseased site.  

Pain felt in a site in the body different from the diseased or injured location where the pain would be expected. Pain perceived as coming from an area remote from its actual origin, such as the arm, elbow, or wrist pain felt in angina pectoris, or pain above the clavicle that is common in diaphragmatic…

Technique of scanning an object, such as a diagnostic wax‐up or prepreparation dentition. This is used as a template for the fabrication of an identical object.  

A component of a facebow system used to transfer a reference plane from the patient to an articulator.  

Second surgical procedure to place an implant in a staged approach, such as alveolar ridge augmentation or sinus grafting procedures. It can be combined with the removal of an inert biomaterial (e.g., nonresorbable membranes or bone graft fixation screws). Can also be performed to improve, enhance, or evaluate results obtained from the initial operation.