| 摘要 |
FIELD: medicine. ^ SUBSTANCE: group of invention refers to medicine, dental diagnostic, orthodontic therapy and comprises an articulator, a face bow and a detachable instrument for jaw cast position transfer in the face bow into a space of the articulator relatively to an opening axis, as well as to a diagnostic technique for dentition. Together with pivotally connected upper and lower bows (UB and LB) with the rotatable LB, cast fixators of upper and lower jaws (UJ and LJ), the articulator is equipped with a detachable corrector of the LB rotation axis relatively to a horizontal pivot of the UB in the form of a variable-length lever perpendicular to the LB rotation axis. The face bow for each joint support is provided with said corrector of the LJ head rotation axis in the form of a detachable variable-length lever perpendicular to the support axis perpendicular to an application point of the latter, and one end of which is pivotally arranged on the support and rotatable about its axis, and the other one - with the perpendicular axis adjusted with a skin projection of the LJ head rotation axis. One end of the lever rotatable about the LB rotation axis of the articulator is detachable and fixed thereafter, and the axis is adjusted on the other end of the lever with the axis of the horizontal pivot of the UB. The diagnostic technique for dentition involves placing the face bow on the patient's face to determine a point of the LJ rotation axis; its projection is marked on skin as a point. When the UJ cast is transferred onto the articulator, its LB rotation axis is moved with respect to the UB by the value equal to the distance of the support axis of the face bow and the point of the skin projection of the LJ head taking into consideration an angel of said axis relatively to a horizontal extending through the support axis. ^ EFFECT: group of inventions provides higher accuracy of patient's UJ position transfer into the articulator. ^ 5 cl, 6 dwg |
