Method for articulator adjustment and gnathological instruments for work under this method

摘要

The method for articulator adjustment and gnathological instruments for work under this method find application in dental medicine and laboratory dental techniques. These and other goals of this invention are achieved with the measurement of the individual parameters of the patient's mandibular transversal hinge axis in the three planes: transversal, frontal and sagittal, including the following steps: measurement of inter-condylar distance; measurement of the distance between the condylar axis and the occlusal plane; measurement of the distance between the condylar axis and central incisors with a face-bow and bite-tray (FIGS. 1,10,11,12); recording of values; simultaneous fixation in the articulator in minimal gathered position of the manufactured in advance two primary working models juxtaposed in central position: a mandibular lower working model to the working plate of the lower articulator frame and a maxillary upper working model to the opposite working plate, which is connected in a telescopic way to the upper articulator frame (FIGS. 2,3,4,5,6,13); coincidence of the mandibular transversal hinge axis of a patient in terms of measured values of his individual parameters and the articulator transversal hinge axis (FIGS. 7,8,9,14); and closure of this articulator in an individual spread-out position.

主权项

1. A method for adjustment of an articulator for a patient, the articulator comprising an upper articulator frame having a working plate, a lower articulator frame having a working plate, and a hinge adjustably linking the upper articulator frame and the lower articulator frame, the hinge having a transversal hinge axis, two mechanical joint condyles and two joint fossae, the method comprising the steps of:
measuring individual parameters of the patient's mandibular transversal hinge axis in three planes: transversal, frontal and sagittal, the individual parameters comprising an inter-condylar distance, a distance between a condylar axis and an occlusal plane, and a distance between the condylar axis and central incisors; fixing a manufactured in advance primary lower working model to the working plate of the lower articulator frame and a manufactured in advance primary upper working model to the working plate of the upper articulator frame; coinciding the patient's mandibular transversal hinge axis in terms of the individual parameters and the transversal hinge axis of the hinge of the articulator; and closing the articulator in an individual spread-out position, wherein:
the step of fixing the primary upper working model and the primary lower working model before the step of coinciding the transversal hinge axis of the patient and the transversal hinge axis of the articulator, through their simultaneous placing and fixation to the working plates on the articulator frames, so that middle lines of the models and of the articulator coincide and occlusal planes of the working models are parallel to a transversal plane of the articulator;the step of coinciding the transversal hinge axis of the patient and the transversal hinge axis of the articulator is achieved through telescopic relocation along the middle line of the articulator on the working plates with models in the transversal plane of the articulator and adjustment of measured values for the inter-condylar distance, the distance between the condylar axis and the occlusal plane, and the distance between the condylar axis and the incisive point of the patient's upper central incisors, through simultaneous three-dimensional relocation and rotation around three coordinate axes with fixation of a location of the two mechanical joint condyles and the two joint fossae of the hinge of the articulator, with regard to the measured individual parameters of the transversal hinge axis of the patient.