摘要:
It is described an arrangement (230, 330, 430, 530) and a method for tracking a movement of an upper jaw (100) relative to a lower jaw (120), the arrangement comprising: a lower mounting structure (231) mountable relative to the lower jaw (120); at least one lower motion sensor system (233) mounted at the lower mounting structure; and at least one data transmission unit (127) adapted to transmit measurement data (245) from the lower motion sensor system to an analysis unit (239).
摘要:
According to the embodiments described herein, a method for characterizing in vivo operation of a dental prosthetic can include providing subject position data and prosthetic position data. The method may further include transforming the subject position data into a reference three-dimensional coordinate system. The reference three-dimensional coordinate system can be ordered according to a coordinate index. The coordinate index can be based at least in part upon a subject position index of the subject position data. The method may further include comparing, automatically with one or more processors, the prosthetic position data and the reference three-dimensional coordinate system according to a comparison order to characterize the dental prosthetic. The comparison order can be based at least in part upon a prosthetic position index of the prosthetic position data and the coordinate index.
摘要:
Provided is an opening measurement instrument which exhibits excellent instrument stability during measurement, and excellent measurement accuracy and reproducibility thereof. This opening measurement instrument is provided with: an engagement part which measures an opening amount between an upper jaw and a lower jaw, and which engages with first reference teeth in one of the jaws; a measurement surface which, while the engagement part is in a state of being engaged with the first reference teeth, is brought into contact with second reference teeth in the other jaw; and a first scale which is provided to the measurement surface, and which indicates the distance from the engagement part. The opening measurement instrument is preferably further provided with a second scale which is provided to the measurement surface, and which indicates the position of a direction orthogonal to the direction in which the first scale is provided. The measurement surface is preferably configured from a curved surface in which the measurement surface between the engagement part and a prescribed point of the measurement surface bulges with respect to a flat surface connecting the engagement part and the prescribed point of the measurement surface. Furthermore, the curved surface is preferably provided with a section having a curvature which increases as the distance from the engagement part increases.
摘要:
Die Erfindung betrifft ein elektronisches Registriergerät zur Erfassung von Bewegungen des Unterkiefers eines Menschen relativ zu dem Oberkiefer des Menschen. Das Registriergerät weist eine Bissgabel 1 zur Erfassung einer Relativposition des Oberkiefers zu Bezugspunkten am Kopf des Menschen auf, wobei die Bissgabel 1 dazu ausgebildet ist, eine plastische Masse zur Erfassung eines Abdrucks der Zahnreihe des Oberkiefers aufzunehmen. Weiterhin weist das Registriergerät eine Unterkieferbefestigung zur Erfassung von Bewegungen des Unterkiefers gegenüber dem Oberkiefer auf. Die Bissgabel 1 weist wenigstens drei Röntgen-Referenzkörper 2, 3, 4 auf, die ein Material aufweisen, das in einem Röntgenbild erkennbar ist, insbesondere Metall.
摘要:
Die Erfindung betrifft eine Sensorvorrichtung zur intraoralen Messung einer Kieferstellung, einer Kieferbewegung und/oder einer Kieferkraft mit einem Gehäuse, einem in dem Gehäuse aufgenommenen Verformungskörper, einer mit dem Verformungskörper verbundenen Druckplatte zur Übertragung einer lokal auf die Druckplatte einwirkenden externen Kraft auf den Verformungskörper, so dass sich der Verformungskörper zumindest lokal verformt, und einem an dem Verformungskörper angeordneten Sensor zur Messung einer Verformung des Verformungskörpers. Der Verformungskörper weist einen gegenüber dem Gehäuse feststehenden Stützabschnitt und einen über mindestens einen Biegeabschnitt mit dem Stützabschnitt verbundenen Krafteinleitungsabschnitt auf, auf den die in die Druckplatte einzuleitende externe Kraft einwirkt. Bei Krafteinwirkung verformt sich der Biegeabschnitt des Verformungskörpers, wobei diese Verformung mit dem Sensor gemessen wird. Ferner betrifft die Erfindung einen Verformungskörper für eine solche Sensorvorrichtung.
摘要:
The mandibular movement of a patient is reproduced on a computer. Three-dimensional models representing the maxillary and mandibular of the patient are acquired. An excursive movement between the acquired three-dimensional model representing the maxillary and the acquired three-dimensional model representing the mandibular is derived. An excursive movement posterior to the intercuspal position is derived.
摘要:
Device for detecting movements of a lower jaw relative to the upper jaw of a vertebrate, with a first holder (30) for securing on the head of the vertebrate in a fixed orientation with respect to the upper jaw and for holding transmitter or receiver units of a position-determining system (1) for movement detection, a second holder (40A) for securing on the left side of the lower jaw and for holding corresponding left-side receiver or transmitter units of the position-determining system, a third holder (40B) for securing on the right side of the lower jaw and for holding corresponding right-side receiver or transmitter units of the position-determining system, and with a first evaluation unit (13) for processing signals of the receiver units in order to generate, from relative position changes of the transmitter units (11) associated with the movements of the lower jaw and detected by the receiver units, a differentiated dynamic image of the movements of the left and right sides of the lower jaw.