124 results about "Temporomandibular joint" patented technology

The invention provides a temporomandibular joint health state monitoring system and method based on joint vibration information, the system comprises a pasting touch type sound sensor, a microcontroller and an interactive display terminal, the pasting touch type sound sensor is used for pasting on a temporomandibular joint, obtaining a three-dimensional joint vibration analog signal, and sending the three-dimensional joint vibration analog signal to the microcontroller; the microcontroller carries out signal amplification, filtering processing and noise elimination, converts the signals into digital signals which can be identified and stored by the display terminal, and sends the digital signals to the interactive display terminal; the interactive display terminal is used for realizing real-time visual output of a three-dimensional joint vibration oscillogram and realizing an interaction function, and judging the health state of the temporomandibular joint based on an input maximum mandibular movement range, existence or absence of pain and joint noise parameters; on the basis of more comprehensive joint vibration information, real-time quantitative monitoring of the health state of the temporomandibular joint can be more accurately achieved, and a doctor can effectively and preliminarily screen the health state of the joint and a user can conduct self-monitoring at home conveniently.

The utility model discloses a portable temporomandibular joint rehabilitation device which comprises a head band, two ends of the head band are fixedly connected with medicine containing boxes, medicine containing cavities are formed in the medicine containing boxes, one side of each medicine containing box is fixedly connected with a breathable plate, the other side of each medicine containing box is in threaded connection with a heating box, and the inner side of each heating box is fixedly connected with an installation frame. A heating plate is fixedly connected to the inner side of the mounting frame, a battery is fixedly connected to the interior of the heating box, an adjusting belt is fixedly connected to the bottom of the medicine containing box, a hook-and-loop fastener and a hook-and-loop fastener are fixedly connected to one side of the adjusting belt, and a jaw supporting assembly is movably connected to the outer side of the adjusting belt. The temporomandibular joint rehabilitation device is more convenient to operate and use, hot compress and medicine compress are achieved at the same time, therefore, the rehabilitation effect is improved, and the rehabilitation time efficiency is shortened.

The invention provides a complete denture manufacturing method for determining a plane and jaw position relation based on digitization, and relates to the technical field of dentistry, the method comprises the following steps: using a finished product tray to prepare an initial impression, filling a plaster model, and scanning to obtain a three-dimensional data STL file of the plaster model of the upper and lower jaws; recording the occlusion relationship by using oil sludge silicone rubber, and scanning to obtain a three-dimensional data STL file of the upper and lower jaw plaster model with the occlusion record silicone rubber; obtaining a CBCT DICOM file when the patient wears and occludes the silicone rubber, and extracting a three-dimensional data STL file of the face, the maxilla and the mandible; fitting the archive to construct a virtual patient; and digitally designing a plane and a median relation jaw position, and the like. According to the method, the upper and lower jawbones are segmented by using CBCT DICOM data, the position of the lower jawbone is moved by using software, the jaw position is accurately designed, and the false tooth is manufactured on the basis of a correct plane and a correct median relationship, so that temporomandibular joint health and false tooth stability of a patient are facilitated.

The invention relates to the technical field of surgical instruments, in particular to operating forceps for temporal-mandibular arthroscopic glide membrane chondroma surgery, which comprise a forceps head assembly, a rotating sleeve, a fixed block, an arc-shaped rod, a gas-driven unit and an adjustable elbow, the forceps head assembly is a working end of the operating forceps; the rotating sleeve is of a cylindrical structure and is fixedly arranged at the tail of the tong head assembly. The fixed block is fixedly arranged at one end of the rotating sleeve away from the tong head assembly; one end of the arc-shaped rod is fixedly connected with the fixed block, and the axis of the arc-shaped rod and the axis of the rotating sleeve are collinear; the gas driving unit is arranged on one side of the arc-shaped rod and used for driving the arc-shaped rod to rotate around the axis of the arc-shaped rod. The adjustable bent pipe is arranged on the side, away from the tong head assembly, of the rotating sleeve. The device can meet the path requirement of a complex anatomical space, can improve the lesion tissue removal efficiency through angle adjustment, greatly reduces the secondary operation frequency, and gives consideration to the operation flexibility and the removal accuracy at the same time.

The invention discloses a method for preparing a personalized biphasic condylar scaffold, which comprises the following steps: collecting data to separate a mandibular digital model; selecting data on the opposite side of a lesion area in the mandibular digital model, and mirror-symmetric mapping the data to the lesion area to obtain a condylar head and neck prosthesis model; designing and printing a bone phase scaffold according to the condylar tissue structure morphology; preparing a cartilage phase scaffold; spraying a dense layer on the surface of the bone phase scaffold head, connecting the cartilage phase scaffold with the dense layer by a "dissolution-adhesion" process to form a dense layer bone-cartilage composite scaffold, thereby constructing a condylar biphasic composite scaffold; and designing a retention handle on the condylar biphasic composite scaffold to construct a personalized biphasic bionic condylar scaffold, which not only solves the problem that autologous bone transplantation for temporomandibular joint reconstruction cannot restore the condylar morphology and there are complications in the bone donor area, but also solves the problem that the mechanical properties of the materials and the degradation cycle of the existing prosthesis do not meet clinical needs.

The invention belongs to the technical field of biological medicines, and particularly discloses application of ORM1 protein or VIM knockout adenovirus in preparation of a medicine for treating temporomandibular joint osteoarthritis (TMJOA). The invention proves that the expression of ORM1 is reduced in synovial fluid of a TMJOA patient and a unilateral anterior tooth reverse inhale model rat, and the degradation of cartilage matrix of the UAC rat can be remarkably inhibited and the progress of TMJOA can be relieved by locally injecting ORM1 protein. On the mechanism level, ORM1 is combined with waveform protein VIM to inhibit an MAPK channel, so that expression of MMP13 and MMP3 is reduced, cartilage matrix degradation is reduced, and cartilage steady state is maintained. In addition, the invention also finds that after the VIM of the rat is knocked out by using the adeno-associated virus, the progress of TMJOA, including cartilage degeneration and subchondral bone destruction, is also obviously improved. Therefore, the invention provides a new therapeutic target and a new therapeutic strategy for the TMJOA.

The present application relates to the field of health recovery training equipment, and particularly relates to a kind of oral cavity maxillofacial temporomandibular joint rehabilitation training instrument.The present application relates to a kind of oral cavity maxillofacial temporomandibular joint rehabilitation training instrument, mainly through fixed block, connecting belt, mounting block and upper dental brace to be set and fixed on the head of human body, rely on control motor to drive winding wheel to carry out different step or synchronous reciprocating action to lower pull rope, realize control lower dental brace to pull lower row of teeth to carry out left and right movement training and front and back movement training of temporomandibular joint, additionally can carry out occlusal movement training of temporomandibular joint, carry out a variety of training actions on temporomandibular joint by electronic instrument equipment according to the program formulated by therapist, on the basis of guaranteeing training effectiveness, reasonably control intensity to reduce the risk of joint injury, overcome the technical problem that intensity is not easy to control when manually pulling dental brace to control temporomandibular joint movement, easy to use excessive force to damage temporomandibular joint.

The invention discloses a design and manufacturing method of an integrated 3D printing repositioning # imgabs0 # pad combined with an invisible tooth socket. The design and manufacturing method comprises the following steps: creating a three-dimensional digital model of the head of a patient; the mandibular unit is moved, and the temporomandibular joint head on the mandibular unit is repositioned to a proper position; establishing a # imgabs 1 # plane, and designing an upper # imgabs 2 # pad and a lower # imgabs 3 # pad; and designing a digital invisible orthodontic appliance, carrying out Brinell addition operation on the digital model of the # imgabs4 # pad and the digital invisible orthodontic appliance, and then removing the part, only provided with the digital invisible orthodontic appliance, of the # imgabs5 # surface area to obtain an integrated digital model for repositioning the # imgabs6 # pad and the invisible orthodontic appliance. According to the obtained repositioning # imgabs7 pad and invisible tooth socket integrated entity, under the condition that the temporomandibular joint position is stably positioned, the tooth position can be accurately adjusted at the same time, the occlusion reconstruction treatment period can be shortened, and the treatment efficiency and the result stability are improved.

The invention relates to the technical field of medical image processing and artificial intelligence diagnosis, in particular to an oral and maxillofacial surgery image recognition and diagnosis method and system based on deep learning, and the method comprises the following steps: multi-modal image collection and cooperative preprocessing: collecting an oral and maxillofacial surgery CBCT image, a cone beam CT curved surface tomography image, an oral endoscope image and an ultrasonic image, a standardized multi-modal image data set is obtained through inter-modal registration and an adaptive enhancement algorithm; according to the method, a traditional diagnosis framework of'single-mode image + manual film reading 'is broken through, and a three-order diagnosis logic of'multi-mode image cooperative enhancement-cross-scale feature dynamic fusion-focus typing and risk hierarchical linkage' is innovatively provided; and accurate identification, typing and malignant transformation risk prediction of common oral and maxillofacial surgery diseases (such as jaw cyst, wisdom tooth impediment, temporomandibular joint disorder and maxillofacial tumor) are realized.

The invention discloses an intelligent wearable monitoring system and method for the health state of an oral temporal-mandibular joint, and relates to the technical field of oral medical treatment, and the system mainly comprises a wearable monitor and a remote analysis platform. The wearable monitor comprises a monitoring module used for collecting health state data of temporomandibular joints of a wearer, a microprocessor used for executing health state evaluation through a lightweight health state evaluation model, and a terminal output module used for sorting abnormal health state data. The remote analysis platform trains a health state evaluation model based on the health state data of the multiple users, regularly updates the weight of the model, and provides rehabilitation guidance suggestions according to the health state data of the temporomandibular joints of the users and evaluation results. Through organic combination of the wearable monitor and the remote analysis platform, comprehensive monitoring, accurate evaluation and personalized rehabilitation guidance of the temporomandibular joint health state are realized.

A method for simulating temporomandibular joint (TMJ) surgery based on an artificial intelligence (AI) technology includes: obtaining temporal bone corners and a temporal bone edge contour in each TMJ image based on a motion synchronization degree of and a distance between any two corners in each TMJ image; obtaining a plurality of mandible corners and a mandible motion direction based on a distance between the temporal bone corners in each TMJ image and coordinates of the corners in the TMJ image in a coordinate system; obtaining a real mandible edge contour in each TMJ image based on an edge contour on which the mandible corners are located and the mandible motion direction in each TMJ image; and constructing a TMJ anatomical model based on the real mandible edge contours and the temporal bone edge contours in all TMJ images.

The application belongs to the field of medical devices, and relates to a temporomandibular joint physiotherapy instrument. The temporomandibular joint physiotherapy instrument comprises a plurality of bite molds set according to different mouth opening degrees of patients, a physiotherapy instrument that can be worn on the head of a patient, a head frame body that can be worn on the head of the patient, and a mandibular frame body hinged to the head frame body. The head frame body and the mandibular frame body can be adjusted in length according to the differences in the faces of patients. Notches are arranged on both sides of the mandibular frame body corresponding to the temporomandibular joints of the patient. A plurality of physiotherapy mechanisms with different physical treatment means are arranged, and each physiotherapy mechanism is detachably connected to the notches. A battery assembly with adjustable release voltage is arranged in the notches, and the battery assembly is provided with a plurality of power supply interfaces of different specifications, and each power supply interface is provided with a physiotherapy mechanism matched therewith. The temporomandibular joint physiotherapy instrument provided by the application has the beneficial effect that the patient can perform bite training while reasonably performing physical treatment on the temporomandibular joint.

The invention relates to a temporomandibular joint vibration mechanical wave collection and recognition method, and belongs to the technical field of medical instruments.The temporomandibular joint vibration mechanical wave collection and recognition method comprises the steps that a sensor assembly collects a vibration mechanical wave signal to generate a simulation piezoelectric signal; the analog piezoelectric signals are converted into digital piezoelectric signals through signal amplification and analog-to-digital conversion, feature extraction is conducted on the digital piezoelectric signals to obtain feature parameters of the digital piezoelectric signals, the feature parameters are input into a trained random forest model, and a recognition result about whether the temporomandibular joint vibration mechanical waves are abnormal or not is obtained. The problem that in the prior art, the temporomandibular joint vibration mechanical wave recognition effect is not ideal is solved.

Method for operating a dental diagnostic imaging system for temporomandibular joint (TMJ) diagnostics and / or TMJ therapy, providing at least two modalities for generating (205, 210) three-dimensional image data, wherein a first image and at least a second image depicting the surface of the object (120) to be imaged are tomographically generated for a dental object (120) comprising at least one TMJ (105, 110), wherein the at least two three-dimensional image data generated (205, 210) in the at least two images are combined by means of a multimodal registration (225, 230) (225), wherein the generation (205, 210) of the at least two three-dimensional image data on the object (120) to be imaged is carried out with markings (125, 310 - 325) captured in the at least two images of different modalities (200).and wherein the at least two three-dimensional image data are spatially assigned to the temporomandibular joint (105, 110) by means of multimodal registration (225, 230) on the basis of the markers (125, 310-325) captured in the three-dimensional image data of both modalities (225), wherein the markers (125, 310-325) are arranged in a spatially restricted recording area for the at least two recordings of different modalities, wherein the markers (125, 310-325) are visible in the at least two recordings of different modalities, and wherein the image data generation is carried out at least by means of the first tomographic recording with the spatially restricted recording area corresponding to the markers (125, 310-325) (205, 210), wherein the spatially restricted recording area is arranged within the oral region of a patient for temporomandibular joint diagnostics and / or for temporomandibular joint therapy, characterized in thatthat the markings (125, 310 - 325) are arranged on a template (115) that can be precisely positioned within the patient's oral cavity, wherein the template (115) is placed in the restricted recording area (200) before the generation (205, 210) of the three-dimensional image data.

The present invention relates to the field of image processing technology, and in particular to a method for constructing an AI simulation teaching model for temporomandibular joint surgery, comprising: obtaining key grayscale images of several frames of temporomandibular joint surgery videos according to the difference in pixel grayscale values ​​of grayscale images of temporomandibular joint surgery videos of adjacent frames; dividing the key grayscale image of each frame of temporomandibular joint surgery video into several local areas; dividing all local areas into several marked image blocks and unmarked image blocks; obtaining the visual quality of each marked image block in the key grayscale image of each frame of temporomandibular joint surgery video according to the difference in pixel grayscale values ​​of the marked image blocks and the unmarked image blocks in the key grayscale image of each frame of temporomandibular joint surgery video; performing resolution enhancement on the key grayscale image of the temporomandibular joint surgery video, and constructing an AI simulation teaching model for temporomandibular joint surgery. The present invention improves the accuracy of the AI ​​teaching model for temporomandibular joint surgery.

A temporomandibular joint replacement system includes an insert configured to be disposed on an articular surface of a temporomandibular joint, a biocompatible fluid including a synthetic synovial fluid, a porous condyle configured to contain the biocompatible fluid and to be disposed on an opposing surface of the temporomandibular joint, and a sensor disposed along a top surface of the insert.

The invention discloses a temporomandibular joint auxiliary fixing device for magnetic resonance examination. The temporomandibular joint auxiliary fixing device comprises a lower supporting device, an upper supporting device and an adjusting device. The lower supporter is rotationally connected with the upper supporter; an adjusting device is arranged at the tail end of the upper supporting device; the adjusting device comprises a limiting table, a limiting piece, a reset table, a fixing shaft, a reset spring and a rotary knob. The fixing shaft is fixedly connected with the upper supporting device, and a round hole is formed in the fixing shaft and provided with a reset spring. The front end of the reset spring is provided with a limiting table slidably connected with the fixing shaft. A reset table is arranged at the front end of the limiting table, and a knob is arranged at the front end of the reset table; the limiting piece is rotationally connected with the lower supporting device. When magnetic resonance examination is carried out, the rotary knob is rotated to drive the upper supporting device to rotate, the limiting teeth are clamped through the blocking piece after adjustment is completed, the limiting teeth are prevented from being overturned, and therefore the device is locked.

The invention discloses a parasitic loranthus exosome-like nano vesicle and application thereof in preparation of a medicine for treating temporomandibular joint osteoarthritis. The taxillus sutchuenensis exosome-like nano-vesicles are prepared by combining a differential ultracentrifugation method with an ultrafiltration method. Researches show that the taxillus sutchuenensis exosome-like nano-vesicles can treat temporomandibular joint osteoarthritis through the following aspects: 1) an anti-inflammatory function: effectively reducing expression of inflammatory factors; 2) a cartilage degeneration inhibition function: blocking a cartilage matrix degradation pathway, and slowing down cartilage tissue damage; the taxillus sutchuenensis exosome-like nano-vesicles have the advantages that the taxillus sutchuenensis exosome-like nano-vesicles have obvious protection and repair effects on relieving temporal-mandibular joint osteoarthritis related bone and cartilage damage, and accordingly the taxillus sutchuenensis exosome-like nano-vesicles have good application prospects.

The invention belongs to the technical field of organic-inorganic compounding, and aims to solve the problem of treatment of temporomandibular joint osteoarthritis (TMJOA). Magnesium-gallic acid metal organic framework (Mg-GA MOF) particles are synthesized through a hydrothermal method, hyaluronic acid is subjected to hydroformylation and double-bond modification to obtain OHAMA, and the magnesium-gallic acid metal organic framework (Mg-GA MOF) particles and the OHAMA particles are compounded to prepare the MOF-Gel composite hydrogel. The hydrogel is injectable and high in tissue retention rate, has dual effects of inhibiting pyroptosis and promoting regeneration on condylar cartilage cells, can effectively promote cartilage repair, shows a good effect in TMJOA treatment, and has a wide application prospect.

The invention provides a temporomandibular joint motion simulation device and a temporomandibular joint motion simulation method, relates to the field of medical teaching equipment, and aims to solve the problem that existing temporomandibular joint simulators are limited in function to affect understanding and perception of temporomandibular joints during teaching. The sounding element is used for simulating the sound of the temporomandibular joint, so that the vibration condition of the temporomandibular joint can be dynamically observed, the sound generated when the temporomandibular joint moves can be heard, corresponding force feedback can be felt in the operation process, safe and repeatable practice opportunities are provided, and the understanding and perception of the temporomandibular joint are improved; and the direct sense of learning and training is strong, and the mobility is good.

MEDICAL DIAGNOSTIC DEVICE FOR TEMPOROMANDIBULAR JOINT MAPPING

The utility model relates to a mouth gag special for temporomandibular joint magnetic resonance imaging. An existing mouth gag needs tooth clamping and positioning, and the use experience is affected. The clamping device comprises a body with a main supporting piece and a sliding block with an auxiliary supporting piece, the sliding block moves along the surface of the body and adjusts the distance between the auxiliary supporting piece and the main supporting piece, a movable clamping piece is arranged on the sliding block, and the clamping piece and the auxiliary supporting piece are matched to form a clamping opening. The body is clamped and positioned on a clamped object through the clamping opening so that the main supporting piece and the auxiliary supporting piece can be positioned at a preset supporting station. The clamping piece is arranged to be matched with the auxiliary supporting piece to form the clamping opening capable of clamping the lower jaw of a user, so that the body is conveniently clamped and fixed to the jaw through the clamping opening, it is guaranteed that the main supporting piece and the auxiliary supporting piece are always located at the supporting station, abutting and locating of teeth of the user are facilitated, and the duration for maintaining the oral cavity contour of the user unchanged is effectively prolonged; the detection accuracy is effectively improved, a user does not need to bite the mouth gag forcibly for a long time, and the use comfort is improved.

A method for modeling temporomandibular joint osteoarthritis, 6-week-old rats are selected, the rats are confirmed to have entered an anesthetized state before surgery, the rat's mandibular incisors are first checked and confirmed to be normal, the first arm of the device is sleeved on one side of the mandibular incisor, and the palatal side of the maxillary incisor is made to touch the slope surface of the second arm of the device, the device is checked and confirmed to not affect the rat's mandibular movement and occlusion, not significantly raise the bite, have no early contact, and the upper and lower jaw relationship is relatively stable; the device and the mandibular incisor sleeved with the device are fixed; then the rat is put back into the cage, and soft food or powdered feed is given after waking up; the device is removed after being fed for 8 weeks or more. It is verified that the condylar process of the rat changes significantly, the overall condylar process is significantly reduced, the subchondral bone is destroyed, and the expression of the cartilage matrix is also reduced. Thus, a TMJOA rat model exhibiting mandibular retrusion is formed.

A method of processing subvocalized speech of a user, the method comprising: receiving an audio signal from an input transducer configured to capture speech of the user; receiving a first motion signal from a first motion sensor configured to detect motion of a jaw or a temporomandibular joint (TMJ) of the user; determining the presence of audible speech in the audio signal; when audible speech is present in the audio signal: correlating the audible speech with first motion data in the first motion signal to generate mapping data mapping the first motion data to the audible speech; when audible speech is not present in the audio signal: determining subvocalised speech of the user based on the first motion data and the mapping data.

This invention discloses a series of osteotomy guides for condylar osteotomy and their manufacturing method, relating to the field of medical device technology. The manufacturing method includes the following steps: creating a hard plaster dental model; establishing a virtual three-dimensional craniomaxillary model; acquiring virtual dentition data and replacing the dentition data in the three-dimensional model with virtual data; determining the target position of the mandibular bone segment; planning and virtually designing the osteotomy lines for coracoid and condylar resection, and virtually resecting the affected side's coracoid and condylar processes, and virtually designing the affected side's temporomandibular joint reconstruction to obtain a three-dimensional model of the affected side's ascending ramus; drawing the coracoid osteotomy guide; drawing the condylar osteotomy guide based on the mandibular morphology and osteotomy line position; and three-dimensionally printing the guide. By employing the above method, the guide can be fixed using its own shape, eliminating the need for additional fixation measures, reducing the difficulty of the procedure, shortening the operation time, and improving the accuracy of condylar resection; it also reduces the possibility of design errors caused by multi-data matching and fusion during the digital design process.

The utility model relates to the field of medical instruments, in particular to an adjustable mandibular protraction appliance device. The device is used for adjusting the sagittal position and the vertical position of the lower jaw when the lower jaw of an OSAHS patient stretches forwards, and comprises a 3S curved device and a retention block device. The first device is formed by bending a 0.0215 * 0.028 clinical stainless steel orthodontic steel wire and has enough hardness and rigidity. The second device is a retention module made of self-setting resin. The overall structure has enough hardness so that the lower jaw can be in an ideal lower jaw forward stretching position, meanwhile, the S-shaped curved structure has moderate elasticity so that the lower jaw of a patient can generate the physiological motility suitable for the lower jaw in the three-dimensional direction, and the OSAHS is treated within the range of the physiological motility. The temporomandibular joint and the oral-maxillofacial muscle group of a wearer can keep a certain range of motion. Meanwhile, the problem that doctors are difficult to manufacture the fixed snore-preventing device which can meet different in-position paths of the upper and lower jaws and is convenient for patients to take off and wear is solved. The device is simple in structure, good in using effect and easy to popularize and use.

This invention belongs to the field of anti-snoring technology, specifically a silicone anti-snoring device. It comprises an integrally molded silicone body consisting of an occlusal pad, an upper labial shield, a tongue induction screen, and a lower labial shield. Both ends of the upper and lower labial shields extend to the end face of the occlusal pad via buccal screens. A connecting portion exists between the occlusal pad and the tongue induction screen. This connecting portion is smooth and without protrusions in the Z-axis, and the corner surface of the occlusal pad away from the connecting portion is smooth. The smooth and non-protruding connecting portion in the Z-axis eliminates the palatal base of the maxillary teeth, making the tongue more easily lifted by the tongue induction screen. The tongue induction screen pushes the tongue from the floor of the mouth to the palatal side of the upper teeth, opening the airway and achieving buccal and lingual muscle balance. Patients can choose one, two, or three stages of mandibular protraction treatment based on their snoring symptom relief and temporomandibular joint symptoms. By protruding the mandible, the airway is further opened.

The application provides a temporomandibular joint distraction soft tissue traction device, which comprises an X-axis connecting mechanism and a Y-axis adjusting mechanism, the X-axis connecting mechanism further comprises an arch strip, an abutment structure and an arc-shaped abutment distraction mechanism for hooking the patient's jaw bone, the arch strip is vertically connected with the Y-axis adjusting mechanism, the abutment structure comprises two independent ladder blocks arranged above the arch strip, the upper surfaces of the two independent ladder blocks are sequentially provided with a U-shaped support for clamping sliding, a sliding rod, a clamping buckle and a limiting hole, wherein the U-shaped supports are respectively installed at the upper ends of the two independent ladder blocks, and the arch strip and the abutment structure are adopted to promote the middle-aged and old patients suffering from temporomandibular joint osteoarthritis to seek medical treatment, and an operable space is established during the open surgery of the temporomandibular joint (similar to the state of the bag opening being adapted), and the load bearing rod, the clamping buckle, the sliding rod and the specific sliding structure state can be used for the distraction of the temporomandibular joint region.

The present application relates to the technical field of temporomandibular joint rehabilitation, and provides a temporomandibular joint training device, comprising: a support portion, wherein a receiving space for accommodating a human face is formed in the support portion; a first movable portion and a second movable portion, wherein the first movable portion and the second movable portion are both movably connected to the support portion and are respectively located on the left and right sides of the receiving space, and the first movable portion and the second movable portion are both provided with a force-applying portion, and the force applied by the force-applying portion causes the first movable portion and the second movable portion to respectively rest against the two sides of the temporomandibular portion of the human face; a third movable portion, which is movably connected to the support portion and is located at the lower part of the receiving space, and the third movable portion is provided with a force-applying portion, and the third movable portion rests against the lower side of the temporomandibular portion of the human face through the force applied by the force-applying portion. The present application solves the problem that there is no dedicated training device for the temporomandibular joint in the prior art, resulting in poor training effect for patients.

A method of producing a retention piece having a guidance package configured to provide a desired movement profile including: obtaining data descriptive of mandibular and maxillary arches, an index position of the mandibular arch at a maximum closure position, and a temporomandibular joint of a recipient; specifying an appropriate guidance package based on the desired movement profile; positioning a retention piece comprising at least a portion of the specified guidance package about virtual representations of at least one of the mandibular and maxillary arches within a virtual articulator; modeling relative movement of the virtual representations of the mandibular and maxillary arches within the virtual articulator; and generating data that can be used by a computer aided machining (CAM) process to create at least one physical retention piece comprising the specified guidance package configured to provide the desired movement profile.