260 results about "Maxillary tooth" patented technology

The invention relates to the technical field of orthodontics, and discloses a design method of an invisible tooth socket for correcting locking teeth, which comprises the following steps: generating a digital dental model through dental scanning data; on the basis of a digital tooth jaw model, an orthodontic locking tooth invisible tooth socket with an unlocking state is designed, the orthodontic locking tooth invisible tooth socket comprises a tooth socket body, the tooth socket body is provided with a functional part corresponding to the position of the tooth in the locking state, and the functional part is used for driving one or more teeth in the locking state to move to the normal position; a first supporting part and a second supporting part of the invisible tooth socket for correcting and correcting the locking teeth are determined, the first supporting part is arranged on the tooth socket occlusal surface adjacent to the functional part, the second supporting part is arranged on the side, opposite to the first supporting part, of the tooth socket occlusal surface, the tooth socket occlusal surface corresponds to the occlusal surface of the teeth, and the second supporting part is arranged on the side, opposite to the first supporting part, of the tooth socket occlusal surface; the first supporting part and the second supporting part are used for supporting the occlusal surface of the upper jaw tooth socket body and the occlusal surface of the lower jaw tooth socket body for a certain distance.

The invention discloses a CBCT tooth segmentation method and system based on an anatomical perception cascade network, and the method comprises the steps: a first stage, carrying out the simplified dichotomy segmentation based on an original CBCT image and a coarse segmentation network taking 3D U-Net as a trunk, outputting maxillary and mandibular tooth probability graphs, and taking the maxillary and mandibular tooth probability graphs as prior information to guide the generation of an SDM; in the second stage, the original CBCT image and the calibrated maxillary tooth probability graph and the calibrated mandibular tooth probability graph are spliced together, a formed multi-channel input tensor is input into a fine segmentation network, the fine segmentation network takes Residual U-Net as a trunk, and an improved AGBR module and an improved SDMAA module are integrated in an encoder-decoder architecture of the fine segmentation network; and the decoder fuses all refined and re-calibrated feature maps, and upsamples and reconstructs 42 types of instance segmentation results with correct topology and clear boundaries. According to the method, the problem that in the prior art, when the inherent and local boundary fuzzy defect in CBCT is overcome, an effective pertinence mechanism is lacked is solved, and precise and robust 42-class instance segmentation can be achieved.

The invention relates to the technical field of oral medical instruments, and particularly provides a customized joint jaw position appliance and a manufacturing method thereof.The customized joint jaw position appliance comprises an appliance body, the appliance body comprises an upper jaw tooth occlusion sleeve and a lower jaw tooth occlusion sleeve, and a first occlusal surface of the upper jaw tooth occlusion sleeve is effectively occluded with a second occlusal surface of the lower jaw tooth occlusion sleeve; the guide inclined surface is arranged on the inner side of the anterior tooth area of the appliance body; the upper jaw blocking body and the lower jaw blocking body are respectively arranged on an occlusal surface, a cheek side surface or a lingual side surface of a premolar region on two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve; the upper jaw blocking table and the lower jaw blocking table are respectively arranged on the occlusal surface, the cheek side surface or the tongue side surface of the molar areas on the two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve, and are integrally connected with the appliance body to form a first occlusal surface and a second occlusal surface. According to the customized joint jaw position appliance, the disc-condylar relationship can be more accurately recovered according to the displacement condition of the joint disc of a patient through double-jaw coordination and multi-region blocking design, the treatment period is shortened, and the prognosis stability is improved by matching with a chewing function.

The embodiment of the invention relates to the technical field of medical instruments, and discloses a mandibular movement modeling method, electronic equipment and a storable storage.The mandibular movement modeling method comprises the steps that image data pictures of the mandible of a patient at different positions are received, and a three-dimensional maxillary model and a mandibular model are digitized; the image data picture at least can display a part of maxillary dentition and a part of mandibular dentition; according to the relative position of the maxillary dentition and the mandibular dentition in the image data picture, determining the spatial position and posture of the digital three-dimensional mandibular model relative to the maxillary model; wherein the image data pictures of different positions of the mandible correspondingly determine the spatial position and posture of one mandible model; and analyzing each spatial position and posture of the determined mandibular model to obtain a movement track of the mandibular model relative to the maxillary model, thereby solving the problem of automatically establishing the mandibular dynamic movement model conforming to the actual condition of the patient.

The utility model discloses a tooth socket type oral irrigator which comprises an irrigating tooth socket, a circulating water pumping main machine and a water storage container, wherein the flushing tooth socket is used for sleeving the outer sides of maxillary teeth and mandibular teeth, a flushing inner cavity for accommodating the maxillary teeth and the mandibular teeth is formed in the flushing tooth socket, a water inlet interface and a water outlet interface are also formed in the flushing tooth socket, and the water inlet interface and the water outlet interface are respectively communicated with the flushing inner cavity; the circulating pump water main machine is connected with the water inlet connector and the water outlet connector. The circulating water pumping main machine is further connected with the water storage container and used for pumping water flow so that water in the water storage container can be pumped into the washing inner cavity from the water inlet connector and water in the washing inner cavity can flow back into the water storage container from the water outlet connector. According to the utility model, the teeth can be flushed by wearing the flushing tooth socket, so that the convenience of flushing the teeth can be improved.

The embodiment of the utility model provides a functional appliance for a high-angle mandibular retraction patient. The functional appliance comprises an upper jaw appliance, a lower jaw appliance, a head cap and a hooking part, the maxillary appliance is provided with a first induction inclined plane, a first adjacent hook, a retention snap ring and a hook; the first induction inclined surface and the first adjacent hook are arranged at the position of the upper bicuspid; the retention snap ring is arranged at the position of a first molar of the upper jaw; the hooks are arranged at the positions of lateral incisor teeth and upper canine teeth of the upper jaw; the lower jaw appliance is provided with a second induction inclined surface and a second adjacent hook; the second induction inclined surface is arranged at the position of the lower bicuspid and is matched with the first induction inclined surface; the second adjacent hook is arranged at the position of the lower bicuspid; the head cap is worn on the head of a corrected person; one end of the hooking component is connected with the head cap, and the other end of the hooking component is connected with the hook. The technical effects of increasing vertical control, lowering the maxillary dentition, adjusting the occlusal plane and improving the growth type of high-angle teenager patients can be achieved while the growth and development of the mandible are guided.

The invention relates to an occlusion guide plate designing and manufacturing method based on dentition mechanical analysis, which comprises the following steps: S1, acquiring oral cavity image data of a patient, and constructing a three-dimensional digital model comprising a dental crown, a tooth root and an alveolar bone structure; s2, calculating an overall mechanical reference point of a tooth root structure of an anterior maxillary tooth area; s3, acquiring an incisal edge midpoint of each incisal tooth and a cusp point of each canine tooth in the maxillary anterior tooth area, solving a geometric center, and connecting the geometric center with an overall mechanical reference point to form a dentition direction vector; s4, calculating the displacement relationship between the target dentition arrangement and the initial dentition arrangement in the lip-tongue direction; s5, calculating an included angle between the occlusal force direction of the maxillary anterior tooth area and the dentition direction vector; s6, determining key morphological parameters of the occlusion guide plate according to the calculation result of the included angle in S5; and S7, manufacturing the occlusion guide plate. Compared with the prior art, the method has the advantages of precise mechanical adaptation, quantitative treatment prediction, personalized design and the like.

Mandibular repositioning devices providing downward movement as well as forward movement of the mandible have a maxillary tooth covering having a driver flange protruding laterally outward on one or both sides thereof and have a mandibular tooth covering having a protrusive flange extending cranially therefrom positioned to have a posterior side engaged with the anterior side of each driver flange. The anterior side of each driver flange has a convex curvature. The posterior side of each protrusive flange has a concave-to-convex curvature positioned to move the convex portion thereof along the convex curvature of the driver flange when the mouth opens, which also moves the mandible forward. A plateau of a preselected height, which prevents disconnect between each protrusive flange and its respective driver flange relative to a fully open mouth measurement, is present between the base of the protrusive flange and the tooth covering.

The utility model discloses a dental system which comprises a force application platform with a first action point, a second action point which is arranged at an interval with the force application platform, and a connecting piece which is connected with the first action point and the second action point, when the dental system is worn in an oral cavity, maxillary teeth and mandibular teeth clamp the force application platform, and the force application platform is connected with the connecting piece. The second point of action directly or indirectly contacts the teeth, and the connector generates an acting force between the first point of action and the second point of action. The force application platform is clamped between the upper jaw teeth and the lower jaw teeth, extra discomfort cannot be brought to a patient, the position of the force application platform in the oral cavity is stable, anchorage can be effectively increased, and stable acting force can be provided.

Provided in one aspect of the present application is a dental instrument, comprising: a U-shaped base support, in the upper and lower sides of which a U-shaped first groove and a U-shaped second groove are respectively formed; an upper occlusion module, which is a U-shaped elongated body fixed to the first groove, and one side of which away from the bottom of the first groove is recessed inwards to form a cavity that receives a patient's maxillary dentition and has a geometric shape customized based on the patient's maxillary dentition; and a lower occlusion module, which is a U-shaped elongated body fixed to the second groove, and one side of which away from the bottom of the second groove is recessed inwards to form a cavity that receives the patient's mandibular dentition and has a geometric shape customized based on the patient's mandibular dentition.

The utility model discloses a dental system which comprises two correcting devices corresponding to the Nth correcting step and the (N + M) th correcting step, N and M are positive integers, each correcting device comprises a jaw plate structure connected with the upper jaw and the lower jaw, each jaw plate structure comprises a first part arranged corresponding to the upper jaw teeth and a second part arranged corresponding to the lower jaw teeth, and when the jaw plate structures are connected with the upper jaw and the lower jaw, the first part is connected with the first part. The first part and the second part abut against each other to form an abutting face, the two jaw plate structures corresponding to the two correctors have different parameters, and the different parameters are configured as follows: when the jaw plate structures are connected with the upper jaw and the lower jaw, the different parameters generate different acting forces and / or different moments. Different parameters can enable the two correctors to generate different acting forces and / or different moments, and the correction requirements of different correction steps are met through the different acting forces and / or the different moments.

The invention provides a computer-implemented method for determining the occlusion relationship of three-dimensional digital models of maxillary and mandibular dentitions based on tooth photos, which comprises the following steps: acquiring a first photo of teeth of a patient in an occlusion state, the first photo comprising a plurality of maxillary teeth and a plurality of mandibular teeth; obtaining a first three-dimensional digital model and a second three-dimensional digital model respectively representing the upper jaw dentition and the lower jaw dentition of the patient; rendering the first three-dimensional digital model and the second three-dimensional digital model to obtain a first rendering graph; predicting an optical flow between the first photo and the first rendering graph by using a trained optical flow neural network based on the first photo and the first rendering graph; and based on the optical flow, calculating a first spatial position transformation relationship which can transform the relative position relationship between the first and second three-dimensional digital models to a state closer to the bite state shown by the first photograph, with a solution to solve the PnP problem, and calculating a second spatial position transformation relationship which can transform the relative position relationship between the first and second three-dimensional digital models to a state closer to the bite state shown by the first photograph.

The invention relates to the field of orthodontics, in particular to a device for controlling palatal root movement of anterior teeth of an upper jaw and a manufacturing method. According to the device, the traction arm and the traction ring which extend to the palatal side of the anterior maxillary teeth are additionally arranged on the basis of the transverse palatal bar and are matched with the traction buckle of the anterior maxillary teeth to guide orthodontic force to act below a tooth impedance center, so that root control movement which is difficult to achieve by a traditional orthodontic method is realized, bending torque on an arch wire or placing other root control devices is not needed, and the whole device is simpler and more attractive; in addition, the device part is manufactured by adopting a 3D printing technology, firstly, tooth and intraoral soft tissue data of a patient are obtained by scanning the interior of an oral cavity, then the oral scanning data are matched with CBCT, a specific device is designed by using software, finally, a finished product is directly printed in a 3D manner, the transverse palatal bar and the traction buckle are completely matched with the tooth surface by adopting the 3D printing technology, and the comfort level is high.

The utility model provides an invisible appliance which comprises a shell-shaped body and a tongue muscle training piece, and the shell-shaped body is provided with a cavity for accommodating a plurality of maxillary teeth; the tongue muscle training piece is connected to the lingual gingival margin of the shell-shaped body or adjacent to the gingival margin, and is provided with a sensing cavity and a sensing opening for exposing the sensing cavity; wherein the sensing port is positioned on the tongue side of the tongue muscle training piece; the tongue muscle training piece is provided with a sensing cavity and a sensing opening exposing the sensing cavity, the sensing opening is located in the side, facing the tongue body, of the tongue muscle training piece, the tongue of a user completes tongue muscle training by touching the sensing opening and partially stretching into the sensing cavity, the experience feeling and interestingness are good, the training enthusiasm of the user can be stimulated, and the user experience is improved. And the tongue muscle training effect is improved.

The embodiment of the invention provides a dental system for occlusal adjustment and a generation method, the dental system for occlusal adjustment comprises N correction instruments for gradually realizing a correction plan step by step, each of the N correction instruments is provided with an upper jaw shell-shaped body for accommodating an upper jaw dentition and a lower jaw shell-shaped body for accommodating a lower jaw dentition, the N upper jaw shell-shaped bodies are respectively provided with an adjusting part for opening the occlusion height of anterior teeth, the N lower jaw shell-shaped bodies are respectively provided with a geometric structure for applying a pressing force to the lower jaw teeth, and the N lower jaw shell-shaped bodies are used for completing the pressing movement in the correction plan step by step for the teeth in the anterior tooth area of the lower jaw. The N adjusting parts enable the relative position relation of the upper and lower jaw teeth in the anterior tooth area to be consistent in the vertical direction in the correction process, and N is a natural number greater than or equal to 2.

Methods of taking a scan of a patient's oral cavity without requiring removal of a healing cap coupled within the implant in the subgingival void. The method may include providing an anatomical healing cap received within the subgingival void of a given tooth position, where the anatomical healing cap is coupled into an implant in the void. A scanning body or an impression post is inserted into an open end (e.g., the hollow core) of the anatomical healing cap, in-situ, with the anatomical healing cap positioned in the subgingival void, and the implant thereunder (or thereover for a maxillary tooth position). The scanning body or impression post is used as a reference in making the impression or scan. Because this is done without requiring removal of the healing cap, further collapse of the gingival tissue surrounding the void is prevented.

The invention discloses a mouth scanning method and mouth scanning instrument based on pose information and point cloud data fusion, and belongs to the field of medical instruments, and the method comprises the following steps: S1, selecting facial feature points which are fixed relative to a position relation between an upper jaw alveolar ridge and a lower jaw alveolar ridge as facial marking points for marking; s2, calculating the spatial positions of a mouth scanning sensor and an attitude sensor fixed on the mouth scanning instrument relative to the facial mark point; s3, obtaining multi-angle point cloud data; s4, obtaining full-port point cloud data; s5, obtaining an intraoral scanning model; s6, reconstructing an edentulous jaw soft and hard tissue three-dimensional digital model; and S7, calculating the soft tissue thickness of an edentulous region in the edentulous soft and hard tissue three-dimensional digital model by using image processing software. According to the oral scanning method and the oral scanning instrument based on the pose information and the point cloud data fusion, errors occurring in the splicing process of the oral scanning instrument only depending on the point cloud data can be remarkably reduced or avoided, and the precision and the efficiency of edentulous jaw digital impression are improved.

The utility model discloses a dental instrument for stopping snore, which comprises an upper jaw shell-shaped dental instrument worn on the upper jaw dentition of a patient, a lower jaw shell-shaped dental instrument worn on the lower jaw dentition of the patient, and a first mounting part arranged on the cheek side of the upper jaw shell-shaped dental instrument and close to the anterior teeth, the connecting piece is arranged on the cheek side of the lower jaw shell-shaped dental instrument and is close to the rear teeth; wherein the first mounting part comprises a convex column which convexly extends away from the cheek side surface of the upper jaw shell-shaped dental instrument; the connecting piece comprises a hooking part, an elastic part and a second mounting part which are connected in sequence and hooked with the first mounting part on the same side; the connecting piece is movably connected to the cheek side surface of the lower jaw shell-shaped dental instrument through the second mounting part; and the hooking part and the convex column hook enable the lower jaw of the patient to move forwards to a preset position in a sagittal manner, so that the airway of the patient is opened, and the snore of the patient is inhibited.

The invention relates to a method for determining whether a tooth is correctly shaped and oriented to avoid interference with another tooth using virtual articulation. The method comprises a) receiving data indicative of a virtual dentition of an oral cavity of a patient by a computing device, the data indicative of the virtual dentition including data indicative of at least one of a virtual mandibular arch representing a mandibular arch of the patient or a virtual maxillary arch representing a maxillary arch of the patient; b) receiving data indicating a selected point on the virtual dentition of the oral cavity; and c) determining a tangent vector indicating a direction of motion of the selected point and determining whether the orientation of a tooth of the virtual dentition or the shape of the tooth is correctly shaped and oriented based on the determined tangent vector, wherein the tangent vector is based on a rotational axis of the virtual mandibular arch.

The invention discloses an occlusal stable temporomandibular joint disorder therapeutic jaw plate and a preparation method thereof, and belongs to the technical field of dental restoration. The preparation method comprises the following steps: acquiring the upper and lower jaw position relation of a joint hinge shaft of a patient, and transferring to a jaw frame; the method comprises the following steps: importing a jaw frame and an occlusion relationship into computer software, designing an occlusion plate worn on an upper jaw dentition, and performing parameter adjustment: adjusting the occlusion height until a rear tooth tip is separated from contact by 1-3mm, only one buccal tooth tip of each of two premolars in the left lower and right lower back tooth areas and the first and second molars is in contact with the biteplate, and canine teeth and lower anterior teeth are in contact with the biteplate; and 3D printing is conducted according to the adjusted parameters of the biteplate, and the biteplate is manufactured. According to the manufacturing method, accurate and rapid manufacturing of the occlusal stable temporomandibular joint disorder treatment jaw plate can be achieved, and through combination of the semi-adjustable jaw frame and digital design, the treatment success rate can be remarkably increased, the pain of a patient can be relieved, and the life quality can be improved.

The utility model discloses a shell-shaped dental instrument which comprises an appliance body, the appliance body comprises a plurality of cavities used for containing maxillary teeth or mandibular teeth, at least one cavity of the plurality of cavities is an eruption cavity used for containing eruption teeth, and at least one cavity of the plurality of cavities is a cavity used for containing the eruption teeth. The inner surface of the germination cavity and the outer surface of the germinated tooth are arranged in a clearance manner, and at least one first magnetic accessory is arranged on the germination cavity; the second magnetic accessory is arranged on the surface of the germinated tooth; a gap is formed between the first magnetic accessory and the second magnetic accessory; wherein after the shell-shaped dental instrument is worn, the germinated teeth realize expected movement through attraction or repulsion between the first magnetic accessory and the second magnetic accessory, and the shell-shaped dental instrument disclosed by the utility model can be used for correcting the germinated teeth in time when the germinated teeth grow unexpectedly, and correspondingly, the germinated teeth are prevented from being damaged. The utility model further provides a dental correction system.

The utility model discloses a dental instrument for stopping snore. The dental instrument comprises a first shell-shaped dental instrument worn on an upper jaw, a second shell-shaped dental instrument worn on a lower jaw, a limiting cavity and a connecting piece, the limiting cavity is formed in the position, close to anterior teeth, of the cheek side of the first shell-shaped dental instrument and comprises two side walls and an opening, wherein the two side walls protrude in the far tooth direction and are sequentially arranged in the mesiodistal direction, and the opening is formed in the maxillary gingiva direction. The first end of the connecting piece is movably connected to the position, close to rear teeth, of the second shell-shaped dental instrument, the second end, away from the first end, of the connecting piece is provided with a mounting part protruding towards the lower jaw, and the connecting piece and the limiting cavity are arranged on the same side; during wearing, the first end of the connecting piece rotates around the normal axis of the cheek side face where the connecting piece is located, and after the mounting part enters the limiting cavity, the mounting part at least abuts against the wall of the distal side of the limiting cavity, so that the lower jaw of the patient is kept at the preset position where the airway can be opened, and movement of the lower jaw of the patient in the sagittal direction is restrained.

An orthodontic retainer includes a first material forming a contact surface for the buccal, occlusal, labial, and lingual surfaces of the maxillary teeth. The first material has a number of holes formed bi-laterally in the lingual surface. The orthodontic retainer includes a second material forming a contact surface for the palatal portion of the upper arch dentition. The second material is formed with several bulges that mate with corresponding holes within the first material. A method of forming the orthodontic retainer includes casting an impression, vacuum forming a first material over the cast of the teeth, trimming the first material in proximity to the gingival contours, drilling a number of holes in a lingual surface of the first material, applying a second material to the palatal portion of the cast and the holes of the first material, and curing the second material to the first material.

The utility model belongs to the technical field of medical instruments, and provides a trachea cannula tooth protective sleeve for anesthesia, which comprises an upper tooth socket and a lower tooth socket, the upper tooth socket is provided with an upper tooth socket matched with maxillary teeth, and the lower tooth socket is provided with a lower tooth socket matched with mandibular teeth; the occlusal surface of the upper tooth socket is provided with a front-back through first concave cambered surface, the occlusal surface of the lower tooth socket is provided with a front-back through second concave cambered surface, the first concave cambered surface and the second concave cambered surface are correspondingly arranged, and a cavity formed by the first concave cambered surface and the second concave cambered surface is matched with a trachea cannula. According to the trachea cannula tooth protection sleeve for anesthesia, damage to teeth can be reduced in the general anesthesia process, extrusion to the trachea cannula is avoided, the smoothness of the oropharyngeal airway is guaranteed, and meanwhile the opening degree of the protection sleeve can be adjusted, so that the gap between the upper tooth sleeve and the lower tooth sleeve is adjusted, shielding to the visual field in the trachea cannula process is reduced, and the safety of a patient is improved. And tracheal intubation operation is facilitated.

The present invention relates to a guided bone regeneration device that is intended for the reconstruction of a buccal bone defect and is composed of an optionally micro-perforated smooth wall which is made of titanium and has a shape that covers said buccal bone defect.The present invention also relates to a process for manufacturing a device of the invention, comprising a step of constructing the device of the invention according to a three-dimensional representation obtained by means of a technique of maxillary-dental imaging of the bone defect.

An oral appliance includes an upper arch and a seal. The upper arch may be positioned proximate a maxillary dentition of a user. The upper arch includes a first tab and a second tab positioned on opposite sides of a plane substantially bisecting the upper arch. The seal defines a first receptacle and a second receptacle that may receive the first and second tabs to couple the seal to the upper arch and to inhibit breathing through a mouth of the user.

The utility model discloses a dental component which comprises a first shell-shaped dental instrument and a second shell-shaped dental instrument, the first shell-shaped dental instrument comprises a first shell-shaped dental instrument body and a first acting part located on a first occlusal surface of the first shell-shaped dental instrument body; the second shell-shaped dental instrument comprises a second shell-shaped dental instrument body and a second acting part located on a second occlusal surface of the second shell-shaped dental instrument body, the first acting part comprises a first guide part and a first jaw pad part which are arranged at an interval, and the second acting part comprises a second guide part and a second jaw pad part; when the upper jaw teeth and the lower jaw teeth are in a complete occlusion state, the first guide part and the second guide part interact to adjust the jaw position relation, and the first jaw pad part and the second jaw pad part interact to fix the position. According to the utility model, the height of a single jaw pad part can be reduced, so that the strength of the jaw pad part is improved, and the continuous extending length of the first acting part in the mesiodistal direction can be reduced, so that the strength of the first acting part is improved.

The invention belongs to the technical field of medical instruments, and particularly relates to a multidirectional distraction osteogenesis correction system, in the multidirectional distraction osteogenesis correction system, the distance between a first fixing sleeve and a second fixing sleeve in supporting assemblies can be adjusted through a second traction assembly, and the distance between the two sets of supporting assemblies can be adjusted through a first traction assembly; the bilateral tooth-bone metastasis plate can be adjusted in the two-dimensional moving direction and the moving amount, the bilateral tooth-bone metastasis plate is allowed to move asymmetrically, transverse and sagittal differential distraction osteogenesis is achieved, and the bilateral tooth-bone metastasis plate is particularly suitable for cleft lip and palate patients with maxillary sagittal and transverse development insufficiency. According to the multidirectional distraction osteogenesis correction system, bilateral asymmetric distraction osteogenesis can be achieved, unilateral / bilateral alveolar process fractures of the front section of the maxillary dental arch are narrowed, the success rate of an alveolar process fracture bone grafting operation is increased, the alveolar bone mass of the middle section of the maxillary dental arch is increased, dentition congestion is relieved, space is provided for repair treatment, and the difficulty of subsequent treatment such as orthognathic surgery is reduced.

The present invention relates to the technical field of medical devices, and particularly relates to a positioning structure and method for osteotomy and bone reconstruction. The positioning structure for osteotomy and bone reconstruction includes a positioning assembly; the positioning assembly includes an upper jaw positioning guide plate, a lower jaw osteotomy guide plate, and a reconstructed bone positioning guide plate; the upper jaw positioning guide plate has an upper jaw occlusal surface, an upper N-shaped splicing mechanism, a plurality of positioning holes, and a plurality of fixing holes; the lower jaw osteotomy guide plate has a lower N-shaped splicing mechanism, a connection area, a lower jaw lower edge indication area, and an osteotomy guiding surface; the reconstructed bone positioning guide plate includes an indication guide plate and a plurality of C-shaped connecting rods; after the upper jaw positioning guide plate is fixed, the insertion and cooperation of the two lower jaw guide plates can guide all the key steps of the operation, without repeated disassembly and adjustment, and maintain accurate positioning and intermaxillary distance to facilitate subsequent implant restoration; based on the upper jaw dentition, the lower jaw osteotomy position and the reconstructed bone position can be positioned, and it can be applied to patients with tooth loosening or lower jaw dentition loss caused by various reasons.