185 results about "Occlusal surface" patented technology

The invention discloses an occlusion contact quantitative analysis method and system for three-dimensional dentition scanning data and a storage medium, and relates to the field of oral medicine. The method comprises the following steps: acquiring upper and lower jaw dentition triangular mesh curved surface data by utilizing three-dimensional optical scanning; the method comprises the following steps: copying data of triangular mesh curved surfaces of dentitions of upper and lower jaws, independently cutting each tooth, and enabling the cut data to comprise a complete occlusal surface of the tooth; judging whether each triangular mesh on the grid curved surface of each cut tooth is an occlusion contact surface or not; and the size of the occlusal force is calculated according to the occlusal contact surface and the pressure intensity in the occlusal state. According to the invention, accurate quantitative analysis of the occlusal force and direction of each tooth can be realized, the cost is low, and the operation is simple and convenient.

The embodiment of the invention provides a registration method and system based on oral scanning data and CBCT data, and relates to the technical field of data processing. For any oral cavity model, firstly, the oral cavity scanning data and the oral cavity CBCT data are obtained and are subjected to preprocessing such as segmentation, and the preprocessed oral cavity scanning data and the preprocessed oral cavity CBCT data are obtained. The method comprises the following steps: preprocessing oral cavity CBCT data and oral cavity scanning data, then registering the preprocessed oral cavity CBCT data and the preprocessed oral cavity scanning data by using a normal vector of a triangular patch to obtain a registered tooth mesh model, so that a local optimal trap caused by distance measurement depending on global point cloud in the prior art can be overcome; according to the method, fine calibration is carried out based on the occlusal surface between the oral scanning data and the CBCT data, the oral scanning data and the CBCT data are fully fused through the coarse calibration process and the fine calibration process, more accurate tooth grid data are obtained, and then orthodontic treatment is assisted.

The invention relates to the technical field of dental medicine, in particular to a dental arch model occlusion relation calculation method and device, equipment and a storage medium. The method comprises the following steps: acquiring a dental three-dimensional model of a patient; executing gravity settling positioning operation, fixing the upper jaw model as a static rigid body, releasing translation and rotation freedom degrees of the lower jaw model, and applying gravity action in the normal direction of the occlusal surface; micro-vibration self-adaptive optimization operation is executed, periodic disturbing force dominated by the normal direction is applied to the lower jaw model, and the teeth are driven to generate tangential slippage behaviors along the occlusal surface; identifying an occlusal contact point set, calculating a normal stress value of each contact point, and iteratively adjusting a pose parameter of the lower jaw model; and based on the optimized mandible pose, simulating a mandible motion path, identifying interference points through a continuous collision detection algorithm, and calling back the contact mechanical equilibrium optimization operation to perform closed-loop correction so as to determine the occlusal relationship. According to the method, the occlusion alignment relation better meeting the biomechanics and occlusion function requirements is calculated in an automatic auxiliary mode.

The utility model relates to the technical field of orthodontics, in particular to a magnetic invisible orthodontic appliance for treating opening and closing of rear teeth, which comprises an invisible tooth socket, an eruption cap, a magnetic component and a retention accessory, the eruption cap is used for guiding and accommodating the growth of target teeth and is integrally formed with the invisible tooth socket; when in use, the retention accessory is arranged on the inner side of a tooth and is allowed to be accommodated in an invisible tooth socket; the magnetic assembly is arranged on the inner surface of the germination cap and comprises a first magnetic part arranged on one side, close to a target tooth, of the germination cap and a second magnetic part arranged on the occlusal surface of the target tooth; wherein the first magnetic part and the second magnetic part are in magnetic attraction connection and are used for realizing and enhancing the orthodontic force of the invisible tooth socket. Compared with the prior art, the magnetic invisible appliance is high in adjustability, stable in applied force, long in duration and capable of reducing mechanical stimulation.

The present invention is oral device that inhibits mastication and ingestion of solid food while minimizing intrusiveness and discomfort in other oral activities. This device is ideal for individuals following an all-liquid diet without relying on willpower alone. The oral device allows a full range of motion of the jaw and the wearer keeps the ability to open and close the mouth, allowing all oral functions other than chewing and swallowing solid food. In various embodiments of the invention, the oral device comprises a set of retainers worn over teeth or retainer bars bonded to, or integrated as part of the retainers. A set of flexible mastication barriers coupled to the retainers or retainer bars and extending from mandible to the maxilla on the lingual side of the mouth inhibit the movement of solid food to the occlusal surfaces of the posterior teeth for chewing. An artificial intelligence platform is implemented to improve fabrication of the oral device and predict and eliminate undercuts in the retainers or retainer bars.

The invention discloses a design and preparation method of a personalized gradient thickness invisible orthodontic appliance model, relates to the technical field of tooth orthodontics, and aims to overcome the defects that the thickness is uncontrollable and preset mechanical properties cannot be accurately realized when an invisible orthodontic appliance is manufactured by a traditional hot press molding process. The method comprises the following steps: firstly, reconstructing a personalized dental model containing tooth roots and bone tissues based on CBCT data of a patient; designing a plurality of gradient thickness appliance schemes; through finite element analysis and simulation, selecting an optimal scheme which is most favorable for realizing correction effects such as overall movement of teeth; and finally, integrally forming and manufacturing the selected appliance by adopting a direct 3D printing technology. The direct 3D printing ensures that the appliance can be manufactured in a high-precision and high-fidelity manner from a complex gradient thickness structure with thick gingiva and thin occlusal surface, so that the optimized mechanical property verified by simulation can accurately reproduce in a real object, the inherent defects of a hot-pressing film process are thoroughly overcome, and the accuracy and predictability of correction are remarkably improved.

The invention discloses a dynamic pressure calibration-based false tooth occlusal surface three-dimensional modeling optimization method and system, and particularly relates to the technical field of false tooth occlusal modeling, and the method comprises the steps: obtaining soft tissue viscoelastic parameters of a patient through ultrasonic elastography and palpation type pressure collection, and carrying out the classification marking; on the basis of viscoelastic parameters and typical pressure time sequence mapping association, a graph neural network fusion time sequence memory unit is trained, and online prediction from dynamic pressure to soft tissue deformation and denture displacement is achieved; performing three-dimensional interpolation and deformation multiplying power correction on the real-time pressure array by utilizing a prediction result, and eliminating soft tissue disturbance through geometric closed-loop feedback iteration; a key contact point cloud is extracted based on corrected equivalent pressure data and predicted displacement, and a high-precision occlusal surface three-dimensional grid is generated by combining weighted registration, reconstruction and local high-density resampling, so that the problem of pressure offset and geometry inconsistency caused by neglecting soft tissue deformation in static modeling is effectively solved.

Devices, systems and methods for dental arch expansion. A polymeric shell including teeth receiving cavities may be shaped to impart an arch expansion force onto a first tooth of one or more teeth to move the one or more teeth from a first position a first distance from a midline of the arch to a second position a second distance from the midline of the arch, the second distance being greater than the first distance. An occlusal feature extending outward from an occlusal wall of a tooth receiving cavity may be configured to contact an outer occlusal surface of an opposing appliance to impart an anti-tipping force onto the first tooth. The anti-tipping force may be of a magnitude and direction to counteract a tipping moment generated at least in part due to the arch expansion force.

The invention relates to the technical field of dental restoration, in particular to a digital production method and system for an artificial gingiva of a dental implant bridge, and the method comprises the steps: obtaining the slope difference of an occlusion section, dividing a contour region, setting segmented filling parameters, constructing a normal track, generating a central path, building an outer contour curved surface, and fusing filling data to generate a complete artificial gingiva model. According to the method, the slope difference value of the section point positions of the occlusal surface is calculated, so that the change state of the contour region is accurately recognized, the spatial analysis capability of the section data is improved, and the structural feature extraction is more refined. And filling parameters are respectively set for different contour areas by adopting a linear fitting mode, so that the partition regulation and control capability of the filling structure is effectively enhanced, and the height of a space filling level is more matched with the bionic requirement of gingiva. The continuous path is constructed by means of the direction vector of the contact surface of the adjacent dental prosthesis, so that the natural space transition between the gingival structure and the bridge structure is ensured, and the problems of path breakage and distortion in the manual design process are avoided.

The present invention relates to a mouthpiece-type intraoral imaging device using a lensless camera and a mouthpiece with a light source, which uses a lensless camera and a mouthpiece with a light source to acquire images of the front, back, and occlusal surfaces of each tooth, and is configured to track and analyze successive images over time using a pre-trained AI algorithm to detect diagnostic, management, and predictive information. This not only improves the precision, reliability, and efficiency of dental diagnosis, treatment, and management, but also makes it possible to acquire images under the same conditions (photography direction, magnification, position, etc.) for each tooth regardless of the photographer's level of skill, thereby further improving the accuracy and efficiency of diagnosis and treatment and significantly reducing the time and manpower wasted on photographing teeth. The present invention relates to a mouthpiece-type intraoral imaging device using a lensless camera, and a dental diagnosis and management system using the same.

The invention relates to the technical field of data processing, and discloses a tooth three-dimensional model parameterization description method, which comprises the following steps: carrying out standardization processing on local point cloud data of teeth to obtain three-dimensional model data of the teeth; meshing the three-dimensional model data to obtain triangular mesh model data of the teeth; integrating a dental crown edge, an occlusal surface and a root boundary region in the triangular mesh model to obtain a key feature region of the tooth; according to curvature change characteristics in the key feature region, identifying anatomical mark points of the teeth, and removing noise points in the anatomical mark points to obtain a feature point set of the teeth; mapping the feature point set to a two-dimensional parameter space, generating a continuous parameterized surface through radial basis function interpolation, and performing geometric reconstruction on the parameterized surface to obtain a parameterized description model of the tooth; outputting the parameterized description model as parameterized description of the teeth; according to the method, the parameterized description efficiency of the tooth three-dimensional model can be improved.

The invention provides a jaw pad model determination method and device, computing equipment and a storage medium. The jaw pad model determination method comprises the steps that first tooth model data and first jaw pad model data are acquired; according to the first tooth model data, determining a first position of a key point of a target tooth to be added with a jaw pad in the first correction step; the key point is used for indicating the position of the jaw pad to be added on the occlusal surface of the target tooth; according to the second tooth model data, determining a second position of the key point of the target tooth to be added with the jaw pad in the second correction step; determining movement information of each key point according to the first position of each key point and the second position of each key point; and determining a second jaw pad model corresponding to the target tooth in the second correction step according to at least one of the movement information of each key point, the first jaw pad model data and the corresponding occlusion relationship of the target tooth in the second correction step. According to the scheme, the corresponding jaw pad model can be adaptively generated for each patient.

The utility model discloses a saliva aspirator which comprises a saliva aspirating head, an occlusion part is arranged on the saliva aspirating head, an anti-skid structure is formed on the occlusion part, a cavity is formed in the saliva aspirating head, a plurality of aspirating holes are formed in the saliva aspirating head, and the aspirating holes are communicated with the cavity; one end of the connecting tube is connected with the saliva suction head, and a circulation channel is formed in the connecting tube and communicated with the cavity. According to the saliva aspirator disclosed by the utility model, the friction force between the tooth occlusal surface and the saliva aspirating head can be increased by arranging the anti-slip structure on the occlusal part, so that the saliva aspirating head can be effectively prevented from being separated during use, the reliability of the saliva aspirator during use can be improved, and the aspirating continuity of saliva can be ensured; meanwhile, in the attachment bonding process, the teeth tightly bite the saliva suction head, and the saliva suction head can play a role similar to chewing, so that the invisible orthodontic appliance template is tightly attached to the teeth, and the attachment bonding accuracy and firmness can be improved.

The invention relates to a device for cleaning surfaces such as teeth, interdental spaces and adjacent gums, characterized in that the cleaning device comprises at least one shuttle which has at least one first movable filament arrangement designed for cleaning occlusal surfaces and at least one second filament arrangement designed for cleaning lateral surfaces, interdental spaces and adjacent gums, wherein the extension of the filaments of the first and second filament arrangements are perpendicular to each other, and wherein the filament arrangements extend in a brush-like or spring-like manner into a cleaning space bounded by them.

The application provides a combined device of an accessory and a shell-shaped appliance and a manufacturing method thereof, the accessory comprises a tooth accessory fixed on a tooth surface and a dental model accessory fixed on a dental model, the tooth accessory is smaller than the dental model accessory, the occlusal surface of the dental model accessory forms different degrees of occlusal contact with the opposite teeth, so that the shell-shaped appliance generated based on the dental model with the dental model accessory fixed thereon can enhance the seating by using the occlusal force, there is a gap between the occlusal surface of the dental model accessory and the introduction surface of the tooth accessory, so that there is a gap between the accessory cavity of the shell-shaped appliance and the tooth accessory, the appliance has a larger surface area and better elastic performance in the accessory part, which is beneficial to enhance the seating and express the correction force, in addition, the occlusal surface of the dental model accessory can also be designed to have the functions of lifting the occlusion and leading the lower jaw.

The invention relates to the technical field of orthodontic appliances, in particular to a self-adjusting arch expander based on hydraulic transmission, which comprises a jaw plate and a tooth sleeve, the tooth sleeve is arranged on the side wall of the jaw plate, a liquid storage bag is arranged in the tooth sleeve, and after the tooth sleeve is worn on a tooth, the liquid storage bag is positioned on a tooth occlusal surface; the jaw plate comprises a first part and a second part which can be far away from each other, a connecting pipe is arranged between the first part and the second part, and two ends of the connecting pipe are respectively arranged in the first part and the second part; a piston is arranged in the connecting pipe and provided with a push rod, the push rod is connected with the first part and the second part, so that when the piston pushes the push rod to move, the first part and the second part are pushed to be away from each other, a one-way valve is arranged in the connecting pipe, and the liquid storage bag is communicated with the one-way valve. According to the occlusal force of a patient, automatic arch expansion is achieved, the size of arch expansion force can be adjusted in a self-adaptive mode according to the size of the occlusal force of the patient, and the effect of improving the comfort and convenience of the patient after wearing is achieved.

The present application relates to the technical field of oral orthodontic appliances, in particular to a self-adjusting arch expander based on hydraulic transmission, which comprises a jaw plate and a tooth sleeve, the tooth sleeve is arranged on the side wall of the jaw plate, and a liquid storage bag is arranged in the tooth sleeve; after the tooth sleeve is worn on the teeth, the liquid storage bag is on the occlusal surface of the teeth; the jaw plate comprises a first part and a second part which can move away from each other, a connecting pipe is arranged between the first part and the second part, and the two ends of the connecting pipe are arranged in the first part and the second part respectively; a piston is arranged in the connecting pipe, a push rod is arranged on the piston, and the push rod is connected with the first part and the second part, so that when the piston pushes the push rod to move, the first part and the second part are pushed away from each other; a one-way valve is arranged in the connecting pipe, and the liquid storage bag is communicated with the one-way valve. The present application can automatically expand the arch according to the occlusal force of the patient, and can adaptively adjust the size of the arch expansion force according to the size of the occlusal force of the patient, thereby improving the comfort and convenience of the patient after wearing.

The application discloses a kind of based on photosensitive bioceramics deciduous tooth additive manufacturing forming process, it is related to ceramic deciduous tooth manufacturing technical field, comprising the following steps: using oral scanner to collect children's dental three-dimensional data, generate deciduous tooth restoration three-dimensional data model and export STL format deciduous tooth repair model;Using photosensitive liquid bioceramic composite material, through DLP photocuring 3D printing into initial blank, again through blue light three-stage resolidification and get blank body.In the process, the morphological characteristics of adjacent healthy deciduous teeth can be accurately extracted, and the crown height correction coefficient is automatically matched according to the age of the child, effectively compensating for the size deviation of the unerupted deciduous teeth, ensuring that the size error of the restoration is small, adjusting the occlusal surface morphology of the restoration according to the actual data of the teeth at the same time, making the occlusal contact area ratio higher, and reserving occlusal buffer space to avoid excessive local stress, significantly improving the mastication comfort and durability of the restoration.

This disclosure discusses a technique for fabricating occlusal interference elements within polymer dental instruments. The technique discloses at least one polymer shell containing several cavities molded to fit over a patient's tooth. The polymer shell includes an occlusal instrument surface molded to fit over the patient's occlusal tooth surface. One or more occlusal interference elements are formed within the occlusal instrument surface, each occlusal interference element including a partially disc-shaped feature that extends radially away from the occlusal tooth surface when the patient wears it.

The present application relates to a kind of personalized orthodontic bite gum, the bite gum is used to cooperate with the use of invisible aligner, the bite gum is horseshoe structure in horizontal plane view, it is wedge structure of back thin front thick in sagittal plane view;The bite gum includes bite gum pad, buccal side, lingual side, the buccal side and the lingual side extend to dental arch buccal side and lingual side from the bite gum pad;The bite gum is provided with the avoidance of corresponding arrangement with the invisible aligner, the avoidance is used to avoid weak position on the invisible aligner.The bite gum provided by the present application is mainly aimed at the cases of tooth extraction, tooth defect, replacement tooth period, tooth occlusal surface design, etc.Special device case, by setting avoidance, the bite gum can avoid weak position on the invisible aligner, prevent the deformation of aligner due to the use of bite gum, affect the treatment effect, reduce the use requirement to patient, improve the use efficiency of bite gum, save time.

The invention provides a digital false tooth processing system and method, and the method comprises the steps: obtaining a plurality of local point cloud views of the surface of a target false tooth processing part, carrying out the point cloud classification based on surface curvature features, and obtaining a feature point cloud set of a complex occlusal surface and a non-feature point cloud set of a flat axial surface; performing multi-view registration of adaptive geometric characteristics on the feature point cloud set and the non-feature point cloud set to obtain a complete three-dimensional point cloud of the target false tooth machined part; performing fine registration on the complete three-dimensional point cloud and the three-dimensional point cloud of the target false tooth design model based on the point cloud overlapping rate to obtain a registration residual error between corresponding point pairs of the target false tooth processing part and the target false tooth design model; and performing normalization and color mapping on all the registration residuals to generate an error thermodynamic diagram of the machining precision of the target false tooth machined part. By adopting the scheme of the invention, high-efficiency, high-precision and result-visualized automatic processing error detection can be carried out on the false tooth processing part with complex mixed geometric characteristics.

The utility model relates to the technical field of dentistry. The utility model relates to a muscle agonist for linked correction of upper and lower teeth. The muscle agonist comprises an upper invisible tooth socket and a lower invisible tooth socket, wherein the upper invisible tooth socket is sleeved outside upper teeth; the lower invisible tooth socket is sleeved outside lower teeth; the incisor part of the lower invisible tooth socket is detachably connected with the incisor part of the upper invisible tooth socket; the occlusal surface at the molar position of the lower invisible tooth socket is connected or detachably connected with the occlusal surface at the molar position of the upper invisible tooth socket through a V-shaped bent connecting strip; an angle forming plate is clamped between the upper invisible tooth socket and the lower invisible tooth socket, and the angle forming plate is positioned on the occlusal surface of at least one of the upper invisible tooth socket and the lower invisible tooth socket. According to the utility model, by optimizing the structure of the muscle agonist, the upper invisible tooth socket can be conveniently matched with upper teeth, and after the upper invisible tooth socket is matched with lower teeth, the incisor part of the lower invisible tooth socket is detachably connected with the incisor part of the upper invisible tooth socket, so that the alignment of an upper jaw and a lower jaw is realized, and the correction of dentition deformity of relative protuberance of the upper jaw and retroduction of the lower jaw is realized.

The invention discloses an appliance for adjusting a jaw position relation based on simulated tooth tips and a preparation method, and relates to the technical field of medical instruments. The appliance comprises a simulated tooth tip assembly fixed on a tooth occlusal surface, and the simulated tooth tip assembly comprises a plurality of simulated tooth tips arranged on teeth in a back tooth area. Each simulation tooth tip comprises a guide surface arranged in the front area of a simulation tooth tip body, a bearing surface arranged in the rear area of the simulation tooth tip body and a compensation surface matched with an occlusal surface, the guide surfaces guide jaw teeth, so that the upper jaw and the lower jaw tend to be a repeatable stable jaw position, the influence of the simulation tooth tips on a wearer in the wearing process is relatively small, and the simulation tooth tips are more stable. In addition, the simulation tooth tips are arranged in the rear tooth area, the mechanical effect of the simulation tooth tips cannot affect the inferior incisor teeth, and the risk of lip inclination of the lower anterior teeth is reduced.

The utility model belongs to tools used for orthodontic treatment of oral and maxillofacial surfaces, and particularly relates to an improved orthodontic movable retainer for malocclusion. The problems that in the background technology, a steel wire used for manufacturing a labial arch and a clamping ring is a 09 steel wire and cannot be too thin, when the steel wire passes through an occlusal surface gap between 34 and 56, teeth are prone to being cushioned, the occlusal degree is too high, the tooth gap is prone to being widened, the adjacency relation of teeth is damaged, and a patient feels uncomfortable when wearing the steel wire are solved. If a groove is ground at the position, the problem of overhigh occlusion is solved. According to the technical scheme, an upper jaw base and a lower jaw base are fixedly connected with a hyperbolic labial arch through connecting steel wires respectively, a clamping ring is formed at the rear end of the hyperbolic labial arch, a check block is arranged on the arc top of the upper jaw base, and a traction curve is formed on the front portion of the clamping ring on the hyperbolic labial arch connected with the lower jaw base. The device is suitable for maintaining the oral and maxillofacial orthodontic state.

The present application provides a kind of dental appliance, dental treatment system, dental appliance design method and preparation method, including the first shell body containing maxillary teeth and the second shell body containing mandibular teeth, the position of the first shell body posterior occlusal surface is provided with protrusion part to the opposite jaw direction, the protrusion part is used to induce and adjust the protrusion part of the upper and lower jaw position relationship, the second shell body dental occlusal surface is provided with guide part, the guide part is used to guide the protrusion part to the normal upper and lower jaw position relationship, the protrusion part and the guide part are respectively provided with the contact surface of mutual action to induce and adjust the upper and lower jaw position relationship;The protrusion part is provided with holding part to the opposite jaw occlusal surface, and the holding part is stably contacted with the second shell body;When the first shell body and the second shell body interact, the guide part guides the protrusion part to move, and simultaneously, the protrusion part moves to the predetermined position, so that the holding part is stably contacted with the occlusal surface on the second shell body.

The invention provides an occlusion induction appliance for a tooth replacement period, an orthodontic system for guiding jaw growth in the tooth replacement period and a design method of the orthodontic system. The occlusion induction appliance for the tooth replacement period comprises an upper jaw tooth socket and a lower jaw tooth socket, a lower jaw brace; the intermaxillary connecting body is positioned between the occlusal surfaces of the back tooth areas of the upper jaw tooth socket and the lower jaw tooth socket; wherein the upper jaw tooth socket and the lower jaw tooth socket form a rigid integral structure which cannot move relatively on an occlusal surface through the intermaxillary connector; the intermaxillary connecting body has a preset thickness so as to open occlusion contact of upper and lower anterior teeth in a wearing state, and the intermaxillary connecting body is configured to lock the lower jaw tooth socket at a preset three-dimensional space position relative to the upper jaw tooth socket body; when the occlusion induction appliance for the tooth replacement period is worn, the upper dentition and the lower dentition serve as integral interactive anchorage, and the occlusion force is converted into the orthodontic force acting on the dentition or the jaw bone.

The utility model provides an anti-caries ointment smearing device which comprises a groove, limiting pieces are arranged at the two ends of the groove, the area defined by the inner side faces of the two adjacent limiting pieces and the inner wall of the groove is filled with a sponge body, the lower end of the sponge body is a tip end, a connecting piece is arranged on one side of the outer surface of the groove, and an extension piece is arranged at the tail end of the connecting piece in a connected mode. The sponge body is in an extrusion form, the tip is tightly attached to the outer surface of a target decayed tooth in an extrusion posture, the inner wall of the groove is tightly attached to the inner side face, the outer side face and the occlusal face of the target decayed tooth through the sponge body in the extrusion posture, and the inner side face of the limiting piece is tightly attached to the adjacent face of the target decayed tooth through the sponge body in the extrusion posture. According to the embodiment, the tip of the cavernous body penetrates into the inner side surface of a target decayed tooth and is tightly attached to the inner side surface of the decayed tooth, the cavernous body, the inner side face of the limiting piece and the side wall of the groove jointly surround the outer surface of the target decayed tooth, saliva can be isolated in the ointment staying process, and the problems that the ointment is swallowed by mistake and the ointment staying amount is insufficient are solved.

The present disclosure relates to a device (100) for the treatment and / or prevention and / or testing of bruxism or craniomandibular dysfunction, sleep apnea and other parafunctional movements such as tongue thrusting, which is designed to be arranged between the upper and lower jaw of a user in a dental appliance or to form a dental appliance, the device comprising a biofeedback unit, in particular a mechanism as a simultaneous sensor and feedback transmitter for biofeedback or in particular a mechanism,which, upon reaching a predetermined threshold of jaw movement and / or the force resulting from a jaw movement, snaps from a first state to a second state with a switching behavior, generating feedback to the user via one or more of the human senses, and returns to the first state when the force from the jaw movement ceases, or a sensor offset towards the occlusal surfaces, or an arrangement in a section of a mandibular occlusal splint that spans or bridges the legs (bridging section). Further devices and methods for manufacturing are also disclosed.

This invention provides a basic jaw pad, a dental instrument, and a preparation method. The basic jaw pad includes a first support portion and a second support portion connected to each other. After the basic jaw pad is installed in the through hole of an orthodontic appliance, at least a portion of the first support portion is located within the cavity of the orthodontic appliance for accommodating the dentition. The first support portion mates with the occlusal surface of the dentition on which the orthodontic appliance is worn. At least a portion of the second support portion is located outside the orthodontic appliance and protrudes towards the occlusal surface of the opposing dentition. The basic jaw pad has a preset basic shape, and at least the material of the second support portion of the basic jaw pad is a polished material. This invention improves the versatility of the basic jaw pad, enabling mass production. Furthermore, clinicians can make real-time adjustments and optimizations based on the target positions of the upper and lower jaws in the patient's occlusal state, the specific situation during actual wear, and patient feedback, thereby improving the orthodontic effect.