title: [Error sources in recording three-dimensional mandibular movements. An in vitro study using the V-type stereognathograph].
abstract: The instrument-induced measurement errors in V-type stereognatography have been analyzed. An optical bench was used as a measurement apparatus. In measuring not too small movement distances, the linearity errors remained within acceptable limits. The variations in linearity due to calibration errors were almost negligible. In practical applications, the stereognatography proved to be insensitive to external factors such as type of illumination, room temperature and voltage fluctuations. Factors affecting the effectiveness of the projection error correction system, such as tilting of the filter, different sites of measurement of the six optoelectronic canals, and mandibular protrusion during mediotrusive movements, might be reduced by slight modifications of the measurement system.
authors.forename: H
authors.initials: H
authors.lastname: Fischer-Brandies
authors.forename: R
authors.initials: R
authors.lastname: Burckhardt
authors.forename: G
authors.initials: G
authors.lastname: Kluge
mesh_terms: D002508:Cephalometry / Q000295:instrumentation* / Q000379:methods; D003725:Dental Articulators; D003748:Dental Equipment; D003951:Diagnostic Errors; D006801:Humans; D007574:Jaw Relation Record; D008334:Mandible / Q000502:physiology*; D009068:Movement
vernacular_title: Fehler bei der Aufzeichnung von Unterkeiferbewegungen mit dem Stereognathographen V.