[The neuromuscular effect of anterior guidance on the protrusive movement pattern of the mandible. Observations in the horizontal plane].
The influence of a temporarily altered anterior guidance on mandibular movement patterns of tooth-guided and non-guided protrusion was examined in a clinical study on 20 patients, all with complete sets of teeth. Registration and recordings of movements were done with the computer-aided ultrasonic measuring system MT 1602. Based on an average measuring time of 40 min for each patient the main results were as follows: 1. The shape of the anterior guidance strongly influences the horizontal tracings of tooth-guided and non-guided protrusion. In most cases these tracings show a deviation from the mid-sagittal path due to neuromuscular coordination. 2. Insertion of an idealized, symmetrical anterior guidance or a horizontal plateau lessens the mandibular deviation and harmonizes the tooth-guided and non-guided paths. However, the old neuromuscular engrams are not completely erased. 3. Newly formed engrams can be erased much easier than old ones.
Abteilung für zahnärztliche Prothetik I, Georg-August-Universität Göttingen.
U
U
Lotzmann
F
F
Jablonski
C
C
Scherer
L
L
Kobes
D000328:Adult; D003725:Dental Articulators; D003766:Dental Occlusion; D006801:Humans; D008334:Mandible / Q000502:physiology*; D003765:Models, Dental; D009068:Movement / Q000502:physiology; D011378:Prognathism / Q000175:diagnosis / Q000503:physiopathology*; D013165:Splints; D014070:Tooth / Q000502:physiology; D014463:Ultrasonography
Neuromuskulärer Einfluss der anterioren Führung auf das protrusive Bewegungs-Muster der Mandibula. Betrachtungen in der Horizontalebene.