PubMed · 290397
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
J Haden. 1978. Occlusal concepts.. https://pubmed.ncbi.nlm.nih.gov/290397/
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
STATEMENT OF PROBLEM: Determining mandibular position for an edentulous patient raises the question of whether to emphasize centric relation or muscular position. This challenge results from the lack of a convenient procedure for quantifying the horizontal mandibular position, which can be determined by a variety of methods. PURPOSE: This study analyzed and evaluated the horizontal mandibular positions produced by different guidance systems. MATERIAL AND METHODS: Twenty-six edentulous subjects with no clinical evidence of abnormality of temporomandibular disorder were selected. Horizontal position data for the mandible obtained by gothic arch tracing was loaded into a personal computer by setting the sensor portion of a digitizer into the oral cavity to serve as a miniature lightweight tracing board. By connecting this with a digitizer control circuit set in an extraoral location, each mandibular position was displayed in a distinguishable manner on a computer display in real time, then recorded and analyzed. RESULTS: The gothic arch apex and tapping point varied, depending on body position. In the supine position, the gothic arch apex and the tapping point were close to the mandibular position determined by bilateral manipulation. CONCLUSION: This system provides effective data concerning mandibular positions for fabrication of dentures.
This article describes a procedure to generate functional path occlusion for ceramometal restorations. With this procedure, the metal framework is formed conventionally, full contour inlay wax is added to the metal framework, and the patient carves functional paths into the wax. These paths are registered with a stone matrix that the ceramist uses as a guide. Advantages over conventional techniques include increased accuracy and simplification of procedures.
The use of a semiadjustable articulator has become more popular for prosthodontic rehabilitation. An occlusal plane analyzer has long been used to assist the operator in the development of an initial mandibular occlusal plane in diagnostic contour casts and later as an integral part of both the contours of the definitive restorations as well as guidelines for the actual tooth preparations. Many manufacturers of semiadjustable articulators offer no such occlusal plane analyzers for use with their instruments. This article describes modifications for the adaptation of an occlusal plane analyzer to the WhipMix 2240 semiadjustable articulator, a possibility heretofore unavailable from any manufacturer.