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A record base constructed using a shellac‐based wafer that has been adapted to the cast with heat.  

An artificial full‐veneer crown swaged from metal plate. An artificial crown that is adapted like a shell or cap over the remaining clinical crown of a tooth; the space between the crown and the shell is filled with cement. Called also cap crown.  

Cortical bony surface of the mandible extending from the alveolar ridge to the external oblique line in the vestibular region.  

Stress caused by a load (two forces applied toward one another but not in the same straight line) that tends to slide one portion of object over another.  

Terminal portions of principal fibers that insert into the cementum of a tooth. These collagenous fibers pass from the periosteum and are embedded in the outer circumferential and interstitial lamellae of bone. Called also bone fibers.  

The color selected for a coronal or gingival portion of a dental prosthesis (crown, bridge, or implant restoration).  

Solid freeform fabrication.  

Generally, the sixth part of anything. In dentistry, it is a one‐sixth subdivision of the dental arches. The anterior sextants are composed of the incisor teeth and canines; the posterior sextants are composed of the premolar and molar teeth.  

The dimensional increase that occurs concurrent with the hardening of various materials, such as plaster of Paris, dental stone, die stone, and dental casting investment.  

Type of retention or attachment screw that is made in smaller dimensions and used to connect a suprastructure and a mesostructure with lingual or palatal horizontal access. Sometimes it is configured as a metal tube with an internally threaded bore and screw system in which prefabricated components are incorporated into the mesostructure and suprastructures.