2016 Glossary - 15
complete denture prosthodontics n: the art and science related to knowledge and skills about restoring an edentulous arch with a dental prosthetic device. complete facial moulage n: a process consisting of an impression that records the soft tissue contours of the entire face. complicated fracture n: a break or disruption in an osseous structure that then causes an injury to adjacent structures like an organ, nerves, or blood vessels. compomer n: a polyacid-modified composite resin containing an acid-modified dimethacrylate resin, glass ionomer fillers, and a photoinitiator. The combination of components offers advantages over either of the separate components. components of occlusion n: the structures related to how the teeth interact, which includes the temporomandibular joints, muscles that are related, the teeth, jaws, and other supporting or related soft and hard tissues. compound joint n: a joint in the body that involves 3 or more bones. computerized tomography (CT) n: a radiologic 2-dimensional representation of a 3-dimensional depiction of a patient's anatomic structures. (See also cone beam computerized tomography.) The images formed depict anatomic osseous structures that can be measured and examined for dental implant placement. A computer is used to arrange the collected radiographic images into a single view. See also cone beam computerized tomography. concrescence n: when the roots of adjacent teeth are joined via cementum deposits. concretion n: a predominantly inorganic mass in a cavity or in the tissue of an organism. condensation n: (1) the process of using force to ensure continuity of the matrix phase and removal of excess mercury when compacting dental amalgam; (2) the process used to increase the density of dental porcelains by eliminating excess water through vibration and blotting. condylar agenesis n: a congenital anomaly depicted by the absence of the condyle. condylar articulator n: a device that replicates the position and movement of the jaws whereby the artificial condyle is represented by a metallic ball that interacts with a plane to represent the articulating surface of the temporomandibular joint. These articulators can be arcon instruments, where the metallic condyle is positioned in a similar manner to a naturally occurring condyle and moves against the artificial articulating surface, or non-arcon instruments, where the metallic plane moves against the metallic ball, unlike that which occurs in a human temporomandibular joint. condylar axis n: a theoretical line traversing through the center of the mandibular condyles and around which the mandible rotates. condylar dislocation n: a dislocation of the mandibular condyle, typically forward of the articular eminence; it is not self-correcting or self-reducing. condylar displacement n: when the location of the condyle is not in its natural position. condylar guidance n: (1) the segment of an articulator that is located in the superior posterior region of the nonmobile member that is designed to control the movement of the movable member; (2) the pathway that the condyles traverse through during translatory movements; the inclination of the path can be measured in degrees relative to the Frankfort plane; (3) v: during mandibular excursive movements it is the mandibular guidance created by the condyle and articular disc as they move and relate to the contour of the glenoid fossae. condylar subluxation n: a self-reducing incomplete or partial disarticulation of the condyle from its glenoid fossa. condyle n: a rounded articular prominence found on the end of a bone, that is, relating to the mandible. It is a bilateral ellipsoidal projection found on the superior portion of the mandible's ramus, and it articulates with the glenoid fossa. The condyle sits atop the condylar neck. The combination of the condyle and the condylar neck is referred to as the condyloid process or condylar process. JOI Glossary 15