摘要:
The invention relates to a method for simulating an orthognathic operation, wherein, to simulate the displacement of the upper dental arch (105) of the patient caused by the surgical intervention to be applied to the maxilla (106) during said orthognathic surgery, the angular and translational position of an upper mounting plate (526) of a 3-D orthognathic surgery simulator (510) carrying a model (317) of said upper dental arch (105) is readjusted by rotating said upper mounting plate (526) around at least two, preferably three of three orthogonal axes X,Y and Z with respect to a rotation point (522) fixed to an arm (521) of said 3-D orthognathic surgery simulator (510), and translating said arm (521) substantially parallel to at least one of the same three orthogonal axes X,Y,Z.
摘要:
present invention provides a physiological three-dimensional articulator provided with a mechanism for reproducing movements of an upper jaw position and a lower jaw position, in which the center of rotation of a lower jaw frame provided in the reproducing mechanism for the lower jaw position is operated in the mouth opening and closing movement in the same manner as a rotation of a lower jaw of a human body which permits mouth opening and closing movement while it is moving, and additionally a mechanism for moving the lower jaw frame in the up and down direction simultaneously with the movement of the center of rotation is provided. With this construction, the movement of the lower jaw frame can be simulated to the real movement of the lower jaw in the human body.
摘要:
The invention concerns an articulator for parametering a prothestic or occlusal directional plane and dentoalveolar stages, for producing dental prostheses comprising two planar elements, upper and lower (1, 2), mutually articulated about a horizontal pin (3) parallel to the two planar elements (1, 2) and located above the lower planar element (2), the two planar elements (1, 2) being designed to fix, opposite each other and in contact with each other, a patient's two dental arch models (5, 6), namely an upper model (5) fixed beneath the upper element (1) lower surface and a lower model (6) fixed on the lower element (2) upper surface, and means for defining, between the two elements (1, 2) a plane inclined with respect to the upper element (1) and corresponding to an occlusal plane P between the two models (5, 6), said means defining the inclined plane corresponding to the occlusal plane P being borne by the upper element (1) and comprising a plate (7) representing the occlusal directional plane P . The means defining the occlusal directional plane P comprise means for adjusting (8, 9; 13; 56 - 59; 64 - 70) the angle of inclination and the distance between the plate (7) and the upper element (1); the distance between the plate (7) and the upper element (1) is adjusted by at least an assembly (9) borne by the upper element (1) and a column provided with a scale (8) bearing the plate (7) at its lower end and sliding perpendicularly to the upper element (1) in the assembly (9), guiding the column (8) and locking into a position adjustable relative to the upper element (1).
摘要:
A dental articulator (210) having an upper support member (12) for supporting a dental cast and a lower support member (14) for supporting a second dental cast. A polycentric hinge joint is provided for simulating the temporomandibular joint of a patient. The polycentric hinge joint comprises a fossae block (48) secured to the upper support member (12) and a condyle member (18) secured to the lower support member (14) which engages a fossae recess (41) in the fossae block (48). A spring (62) is provided for securing the lower support member (14) to the upper support member (12) and simulating the muscles used for mastication. A pair of wires (122) are provided for simulating the ligaments of a patient. The upper end of each wire passes through an opening in the upper support member (12) and the lower end is secured to the lower support member (14). Removable, adjustable post assemblies (260) are provided so that the upper and lower support members (12, 14) may be accurately repositioned.
摘要:
A dental articulator (210) having an upper support member (12) for supporting a dental cast and a lower support member (14) for supporting a second dental cast. A polycentric hinge joint is provided for simulating the temporomandibular joint of a patient. The polycentric hinge joint comprises a fossae block (48) secured to the upper support member (12) and a condyle member (18) secured to the lower support member (14) which engages a fossae recess (41) in the fossae block (48). A spring (62) is provided for securing the lower support member (14) to the upper support member (12) and simulating the muscles used for mastication. A pair of wires (122) are provided for simulating the ligaments of a patient. The upper end of each wire passes through an opening in the upper support member (12) and the lower end is secured to the lower support member (14). Removable, adjustable post assemblies (260) are provided so that the upper and lower support members (12, 14) may be accurately repositioned.
摘要:
The present invention provides a physiological three-dimensional articulator provided with a mechanism for reproducing movements of an upper jaw position and a lower jaw position, in which the center of rotation of a lower jaw frame provided in the reproducing mechanism for the lower jaw position is operated in the mouth opening and closing movement in the same manner as a rotation of a lower jaw of a human body which permits mouth opening and closing movement while it is moving, and additionally a mechanism for moving the lower jaw frame in the up and down direction simultaneously with the movement of the center of rotation is provided. With this construction, the movement of the lower jaw frame can be simulated to the real movement of the lower jaw in the human body.
摘要:
An apparatus for use in dentistry to record and analyze mandibular movement comprises a rigid support frame for supporting a maxilla support member, a positionable mandibular member and sensing assemblies. The support member fixedly attaches to the support frame. The mandibular member is positionable proximate the maxilla member. The positional data is collected by a computing device and stored in a data storage medium as time history files. The files can then be transformed into usable information to replicate the mandibular movement in real time either virtually or mechanically. The mechanical articulator includes a base frame, an arm connected to the base frame and a suspension assembly positionable by a plurality of electro-mechanical actuators. The plurality of actuators each selectively impart movement to the sides of the suspension assembly such that the movement of the mandible obtained during a recording process can be replicated on the apparatus in real time.
摘要:
The invention relates to a method for simulating an orthognathic operation, wherein, to simulate the displacement of the upper dental arch (105) of the patient caused by the surgical intervention to be applied to the maxilla (106) during said orthognathic surgery, the angular and translational position of an upper mounting plate (526) of a 3-D orthognathic surgery simulator (510) carrying a model (317) of said upper dental arch (105) is readjusted by rotating said upper mounting plate (526) around at least two, preferably three of three orthogonal axes X,Y and Z with respect to a rotation point (522) fixed to an arm (521) of said 3-D orthognathic surgery simulator (510), and translating said arm (521) substantially parallel to at least one of the same three orthogonal axes X,Y,Z.
摘要:
Bei einem Artikulator (1), mittels dem Demonstrationsbewegungen eines Unterkiefermodells (8) vornehmbar sind und der aus einem zweiteiligen Traggestell (2) besteht, an dessen ortsfesten Oberteil (3) ein Oberkiefermodell (7) und an dessen um eine horizontal verlaufende Achse (Welle 5) begrenzt verschwenkbaren Unterteil (4) das Unterkiefermodell (8) befestigt sind, ist das Unterkiefermodell (8) über ein Zwischenstück (11) an dem Unterteil (4) des Traggestells (2) abgestützt und das Zwischenstück (11) ist drehbar an dem Unterteil (4) gelagert. Durch diese Ausgestaltung ist es möglich, an dem Artikulator (1) unterschiedliche Kiefermodelle ohne Schwierigkeiten an dem Oberteil (3) und dem Unterteil zu befestigen, ohne dass Bearbeitungen vorzunehmen oder Fachkenntisse erforderlich sind. Außerdem können die beiden Kiefermodelle (7 und 8) problemlos zueinander ausgerichtet werden.