18 results about "Face bow" patented technology

This invention discloses a personalized Gothic arch component for dental implant restoration and a method for determining digital jaw position relationships, belonging to the field of medical device technology. The component includes a mandibular tracing needle fixation bracket, a tracing needle, a maxillary Gothic arch tracing plate, and fixing screws. The mandibular tracing needle fixation bracket comprises a Y-shaped tracing needle positioning frame and a personalized implant fixation bracket. The tracing needle is fitted into the central groove of the mandibular tracing needle fixation bracket via a shaft-hole fitting structure. The maxillary Gothic arch tracing plate is U-shaped and adapts to the maxillary dental arch. Both the mandibular tracing needle fixation bracket and the maxillary Gothic arch tracing plate are provided with screw channels for matching fixing screws. The method for determining digital jaw position relationships includes: taking a digital impression; designing and 3D printing the above components using CAD / CAM; determining the vertical distance and centric relationship using the personalized Gothic arch; and transferring the maxillary-mandibular relationship for edentulous full-mouth implant restoration based on occlusal records and electronic facebow data, thereby improving the clinical applicability of the restoration.

This utility model provides a maxillofacial bow for denture diagnosis, relating to the field of facial bow technology. It includes a support frame with a nose support assembly in its center; symmetrically arranged first L-shaped arms and second L-shaped arms, each with a first earplug at its front end and a second earplug at its front end; a linkage adjustment mechanism comprising a gear located at the center of the support frame, and a first rack and a second rack meshing with the gear, wherein the first rack connects to the first L-shaped arm and the second rack connects to the second L-shaped arm; the first L-shaped arm has a first clearance groove for accommodating the second rack, and the second L-shaped arm has a second clearance groove for accommodating the first rack; an adjustment knob is coaxially fixed to the gear, and its rotation drives the first rack and the second rack to move in opposite directions, achieving synchronous opening and closing adjustment of the first and second L-shaped arms. The advantages of this utility model are synchronous expansion on both sides, uniform force distribution, no deviation, high precision, and good stability.

The invention relates to the technical field of oral cavity plastic surgery, in particular to a manufacturing method of a digital buckle type guide plate for dental crown lengthening, which comprises the following steps of: 1, scanning an upper jaw dental arch and a lower jaw dental arch of a patient to obtain intraoral scanning data, recording an occlusion relationship at a maximum tooth tip staggering position, and exporting the data for later use; step 2, acquiring facial three-dimensional scanning data, alveolar bone and craniofacial structure data, digital facial arch data, mandibular position and mandibular movement parameters of the patient; 3, fitting various data to determine ideal gingival margin position parameters and bone trimming contour line parameters required in the operation; and 4, on the basis of the parameters determined in the step 3, buckle type guide plates are designed in design software, the buckle type guide plates comprise a gingival resection guide plate and an osteoplasty guide plate, and finally the buckle type guide plates are printed through a 3D printer. By implementing the buckle type guide plate prepared by the method, the stability, the accuracy, the operation convenience and the operation efficiency in the operation process of the dental crown extension surgery are remarkably improved.

The application discloses a 3D printing resin jaw fork fixing method and system for complex dentition patients, relates to the technical field of oral digital restoration, and comprises the following steps: obtaining intraoral scanning data of the dentition patient, extracting mandibular dentition support points, undercut locking areas and dynamic occlusion interference boundaries based on the occlusion point trajectory, establishing a three-dimensional digital model of the mandibular full dentition and occlusion relationship with bearing stability weight and motion avoidance constraints, and performing coordinate unification and assembly gap matching according to the interface specifications of the scanning face bow, the occlusion recorder and the mandibular metal jaw fork to obtain a preliminary docking feature set. The 3D printing resin jaw fork fixing method and system for complex dentition patients improve the accuracy, repeatability and clinical operation efficiency of occlusion recording and mandibular motion analysis of complex dentition patients.

The embodiment of the invention relates to the technical field of oral medical treatment and dental measuring equipment, in particular to an electronic face bow for recording mandibular movement data of a patient, which comprises an imaging device worn on the head of a user, the imaging device comprises a frontal bow and two straight handles, and the straight handles are rotatably connected to two sides of the frontal bow. A torsional spring is arranged at the end, connected with the frontal arch, of the straight handle and used for applying lateral pre-tightening force enabling the straight handle to be close to the head of a user. The other end of the straight handle is provided with a plurality of lateral installation holes used for installing the universal disc, the universal disc is installed in one lateral installation hole through the connecting rod so as to be supported between the straight handle and the head of a user, the supporting direction of the universal disc can be adjusted, and the wearing stability and comfort can be improved when the electronic face bow is used.

The invention discloses a digital protective jaw pad and a preparation method thereof, and the preparation method comprises the following steps: 1, carrying out intraoral three-dimensional scanning to obtain a digital model; step 2, a dynamic occlusion relation is recorded by a digitized face bow, and an inresting jaw position is determined; 3, making an occlusion recording silica gel and plaster model; 4, scanning the plaster model, designing a virtual jaw pad in combination with the intraoral scanning digital model, and performing personalized buffering treatment; and step 5, processing the PMMA solid jaw pad by a CAM technology. Whole-course digital precise manufacturing of the protective jaw pad is achieved, occlusion interference of diseased teeth is avoided through the personalized buffering design, the material biocompatibility is good, wearing is comfortable, traumatic teeth or postoperative teeth are effectively protected, and meanwhile the treatment effect and the patient satisfaction degree are improved by combining patient education.

The invention relates to the field of medical instruments, in particular to a 3D skull acquirer which comprises a face arch body, a universal joint and a jaw fork, the face arch body comprises a fixing base, frame assemblies, ear bulb assemblies and a nose pad assembly, the frame assemblies are arranged on the two sides of the fixing base in a spaced adjustable mode, and the universal joint is arranged on the face arch body. The ear bulb assemblies are symmetrically and independently arranged on the inner side of the rear end of the frame assembly in a height-adjustable mode, the nose pad assembly is arranged in the middle of the inner side of the fixing base in a lifting mode, and the gradienter is arranged at the upper end of the fixing base. The upper end of the universal joint is connected with the bottom of the fixing base, the jaw fork is fixed to the bottom of the universal joint, a one-key locking assembly is arranged in the universal joint, and a skull positioning reference is accurately established through adjustment of the frame distance of the face arch body, independent height adjustment of the ear bulb assembly, multi-dimensional adjustment of the nose pad assembly and calibration of a gradienter. Individual differences such as skew auditory meatus and asymmetrical nose wings are effectively adapted; and the universal joint with a one-key locking function is matched, so that the operation efficiency is improved.

Dental facebow device for orbital plane alignment

A facemask and accessories which overcome the adverse effects and limitations of current designs by moving the maxilla and mandible in forward direction, which assists in correcting maxillary and mandibular skeletal and dentoalveolar deficiency and help expand the upper airway by advancing the mandible. This is accomplished by a design that is supported only by forehead and produces forces in front of maxilla and mandible. The extra-oral facebow design is characterized by providing two independent force adjustments, one above the forehead and the other one in front of the face by attachments to the upper and lower jaw bones and teeth. In particular, the two independent adjustments are provided by a fully adjustable forehead pad and bilateral adjustable bows on opposite sides of the facebow's extra-oral frame to provide protracting forces.

The utility model discloses a digital jaw position analyzer, which comprises a face arch assembly, a suborbital point assembly, a condylar axis assembly, a tracing assembly and a mandibular movement assembly, can be used as a conventional face arch, and can also be used for tracing a condylar axis and tracing a mandibular movement track to directly obtain space coordinates of each key point; the condylar axis coordinates are obtained into the same coordinate system of the face arch, so that digital jaw position analysis is achieved, jaw position analysis can be completed more quickly without a complex mandibular motion tracing instrument, and the method is used for checking whether the jaw position of an orthodontic patient is abnormal or not, preventing the possible temporomandibular joint problem and assisting an orthodontic doctor in better scheme design. And the correction result is more stable.

Facial arch (1) for recording the position of the upper dental arch (2), comprising at least one base body (3) for receiving at least one coupling paste (6) arranged between the same base body and the upper dental arch; said facial arch comprises a reference body (7, 8) connected to said base body and arrangeable outside the oral cavity of the patient and wherein: - said reference body is provided with: - at least one first reference element (7) extending along a first reference axis (A); - at least one second reference element (8) extending along a second reference axis (B); - said first element and said second element are arranged transverse to each other; - said facial arch (1) is movable so as to arrange said first element substantially parallel to the bi-pupillary plane (10) of the patient and said second element substantially parallel to the Camper plane (11) of the patient.

The invention discloses a complete denture and a complete-process digital complete denture manufacturing method. A traditional impression is replaced by an optical impression, mechanical face arch and Gothic arch tracing is replaced by electronic motion face arch and mandibular motion track tracing, traditional jaw position recording is replaced by combining mandibular track characteristics displayed by a voice method, the technical sensitivity is lower, and jaw position relation recording is more accurate; after mouth scanning, an occlusion scheme is directly generated through software tooth pre-arrangement and an electronic face arch, the middle steps of wax pattern try-on, traditional jaw position recording and the like are omitted, digital manufacturing is adopted, manual operation is reduced, false teeth are directly output through the three-dimensional printing / cutting technology, the tedious procedures of boxing, tooth boiling, grinding and the like are omitted, the manufacturing period is greatly shortened, and the manufacturing cost is reduced. And the subsequent secondary copying or remanufacturing time and the adaptation time are greatly shortened, a digital solution is provided for reconstructing the jaw position through full-mouth planting occlusion, and development, integration and the like of digital and intelligent data are facilitated.

The application discloses a complete denture and a complete-process digital complete denture manufacturing method. The application replaces a traditional impression with an optical impression, replaces a mechanical face bow and a Gothic arch tracing with an electronic face bow and a mandibular movement trajectory tracing, and replaces a traditional jaw position recording with a mandibular trajectory feature displayed by a speech method, so that the technical sensitivity is lower, the jaw position recording is more accurate, and an occlusion scheme is directly generated after software pre-dental alignment and electronic face bow after mouth scanning, so that intermediate steps such as wax trial fitting and traditional jaw position recording are omitted. In addition, the application adopts digital manufacturing to reduce manual operation, three-dimensional printing / cutting technology is directly used to output a denture, and complicated processes such as boxing, boiling, and grinding are omitted, so that the manufacturing period is greatly shortened, the secondary copying or remanufacturing time and the adaptation time are greatly shortened, and a digital solution is provided for complete implant occlusion reconstruction of a jaw position, and the development and integration of digital data are more beneficial.

The invention discloses a real-time CBCT (Cone Beam Computed Tomography)-guided median relationship determination method, system and equipment and a storage medium. The method comprises the following steps: acquiring three-dimensional data of dental arches of upper and lower jaws and jaw bones through intraoral scanning and CBCT scanning, and fitting to establish a virtual patient model; acquiring a spatial position relationship between the motion acquisition marker and the dentition of the patient; taking dental arch feature points by using a probe point, and establishing a space mapping relation from the motion acquisition marker to a CBCT coordinate system; the position of a marker is tracked in real time through an electronic plane bow system, and the position of a condylar process in a glenoid fossa is dynamically displayed in real time on a CBCT image based on a space mapping relation; a physician preliminarily determines a median relation position candidate in combination with a clinical technique under real-time visual guidance; guiding the patient to perform joint function movement, synchronously monitoring the joint function and masticatory muscle movement, and determining the final median relation position after the temporomandibular joint function health is verified. According to the invention, chair-side real-time visualization and functional verification are realized, and the diagnosis and treatment efficiency of jaw position determination is obviously improved.

This invention discloses an orthodontic positioning facebow for maxillary incisors, along with methods for position measurement and prediction. The orthodontic positioning facebow includes a facebow body, an external auditory canal support, a nose bridge, a measuring rod, and a band. The facebow width adjustment knob is movably connected to the first end of an L-shaped support, causing the first end of the L-shaped support to move in opposite directions or away from each other when the facebow width adjustment knob is rotated. The measuring rod includes a measuring rod height adjustment bracket, an incisor positioning measuring ruler, and a glabella positioning measuring ruler. The incisor positioning measuring ruler is used to measure the position of the patient's maxillary incisors; the glabella positioning measuring ruler is used to measure the depth of the patient's soft tissue glabella. The measurement and prediction of the maxillary incisors are achieved using the positioning facebow. This invention applies the facebow to the measurement of the maxillary incisor position during orthodontic treatment, assisting orthodontists in monitoring the position of the maxillary incisors during treatment, avoiding the need for X-ray imaging, and offering simple clinical operation and good repeatability.

The application discloses a kind of real-time CBCT guided centric relation determination method, system, equipment and storage medium. Upper and lower jaw dental arch and jaw three-dimensional data are obtained by intraoral scanning and CBCT scanning, and a virtual patient model is fitted and established;Obtain the spatial position relationship between motion acquisition marker and patient dentition;Use probe to pick up dental arch feature points, establish the spatial mapping relationship from motion acquisition marker to CBCT coordinate system;Real-time tracking of marker position is realized through electronic facebow system, and the position of condyle in glenoid cavity is dynamically displayed in real time on CBCT image based on spatial mapping relationship;Under the guidance of real-time visualization, the clinician preliminarily determines the centric relation position candidate in combination with clinical method;Guide the patient to carry out joint function movement, and monitor the joint function and masticatory muscle activity synchronously, and determine the final centric relation position after verifying the health of temporomandibular joint function.The application realizes chair-side real-time visualization and function verification, and significantly improves the diagnosis and treatment efficiency of jaw position determination.